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diff --git a/task_10_iso_reconstruction/easy/meta_0018.json b/task_10_iso_reconstruction/easy/meta_0018.json
new file mode 100644
index 0000000000000000000000000000000000000000..0c42c412b10b0e414f5fe27d07da51d721e19e87
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0018.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 60,
+  "puzzle_id": "iso_reconstruction_easy_0060",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0019.json b/task_10_iso_reconstruction/easy/meta_0019.json
new file mode 100644
index 0000000000000000000000000000000000000000..b471bf91e4fe1ef6c235b362e78ae42bdea66682
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0019.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 61,
+  "puzzle_id": "iso_reconstruction_easy_0061",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0020.json b/task_10_iso_reconstruction/easy/meta_0020.json
new file mode 100644
index 0000000000000000000000000000000000000000..1ecb1e1db3f3f5583cff2c58f6569a3c97be0e34
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0020.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 62,
+  "puzzle_id": "iso_reconstruction_easy_0062",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0021.json b/task_10_iso_reconstruction/easy/meta_0021.json
new file mode 100644
index 0000000000000000000000000000000000000000..94f77708e887e1c63663501a4f662e34d480edb1
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0021.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 63,
+  "puzzle_id": "iso_reconstruction_easy_0063",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0022.json b/task_10_iso_reconstruction/easy/meta_0022.json
new file mode 100644
index 0000000000000000000000000000000000000000..d54099bbbc3bb34492cd96ae0e401e5ad1e708f1
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0022.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 64,
+  "puzzle_id": "iso_reconstruction_easy_0064",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0023.json b/task_10_iso_reconstruction/easy/meta_0023.json
new file mode 100644
index 0000000000000000000000000000000000000000..b40787d8b4bc5e3b74379401cbfad6c9a40e462c
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0023.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 65,
+  "puzzle_id": "iso_reconstruction_easy_0065",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0025.json b/task_10_iso_reconstruction/easy/meta_0025.json
new file mode 100644
index 0000000000000000000000000000000000000000..922e8d6b706ba0e8fdf6cf23bb12dc8c83dfd839
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0025.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 67,
+  "puzzle_id": "iso_reconstruction_easy_0067",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0026.json b/task_10_iso_reconstruction/easy/meta_0026.json
new file mode 100644
index 0000000000000000000000000000000000000000..d9a01b758db02796f788efe59d5a894c824422bf
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0026.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 68,
+  "puzzle_id": "iso_reconstruction_easy_0068",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0027.json b/task_10_iso_reconstruction/easy/meta_0027.json
new file mode 100644
index 0000000000000000000000000000000000000000..1fc8b1e6a57396fde2582ba8af5b6ccab9a1cb7b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0027.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 69,
+  "puzzle_id": "iso_reconstruction_easy_0069",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0029.json b/task_10_iso_reconstruction/easy/meta_0029.json
new file mode 100644
index 0000000000000000000000000000000000000000..f21e259cb476ecd70490798a5e7f2d59c14fc380
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0029.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 71,
+  "puzzle_id": "iso_reconstruction_easy_0071",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0030.json b/task_10_iso_reconstruction/easy/meta_0030.json
new file mode 100644
index 0000000000000000000000000000000000000000..4aed0b57cd89f9bf78c2a8473d13c225d5bf1d5e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0030.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 72,
+  "puzzle_id": "iso_reconstruction_easy_0072",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0031.json b/task_10_iso_reconstruction/easy/meta_0031.json
new file mode 100644
index 0000000000000000000000000000000000000000..de9b89e3e873ffdb8a13abefb8580109853f7349
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0031.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 73,
+  "puzzle_id": "iso_reconstruction_easy_0073",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0033.json b/task_10_iso_reconstruction/easy/meta_0033.json
new file mode 100644
index 0000000000000000000000000000000000000000..67da247f66d5ed51c2ba2527848d45a44fef4df3
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0033.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 75,
+  "puzzle_id": "iso_reconstruction_easy_0075",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0034.json b/task_10_iso_reconstruction/easy/meta_0034.json
new file mode 100644
index 0000000000000000000000000000000000000000..b43b119f07028acd9431d90ff52936cb7d8401d8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0034.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 76,
+  "puzzle_id": "iso_reconstruction_easy_0076",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0035.json b/task_10_iso_reconstruction/easy/meta_0035.json
new file mode 100644
index 0000000000000000000000000000000000000000..0a17515a45109d37b70d6e82bed0505d2aac8054
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0035.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 77,
+  "puzzle_id": "iso_reconstruction_easy_0077",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0036.json b/task_10_iso_reconstruction/easy/meta_0036.json
new file mode 100644
index 0000000000000000000000000000000000000000..61e9920883326878da6c84e0ae424c3c96088347
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0036.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 78,
+  "puzzle_id": "iso_reconstruction_easy_0078",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0037.json b/task_10_iso_reconstruction/easy/meta_0037.json
new file mode 100644
index 0000000000000000000000000000000000000000..47696ca6f9d1b5af0efa4dd133bd10b57f3756b3
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0037.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 79,
+  "puzzle_id": "iso_reconstruction_easy_0079",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0038.json b/task_10_iso_reconstruction/easy/meta_0038.json
new file mode 100644
index 0000000000000000000000000000000000000000..20818bf0b20a2f2f0526a3da36c329d73378135d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0038.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 80,
+  "puzzle_id": "iso_reconstruction_easy_0080",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0039.json b/task_10_iso_reconstruction/easy/meta_0039.json
new file mode 100644
index 0000000000000000000000000000000000000000..651b3133a6e4816903baf9bfa3b4b907f2ce7f0a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0039.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 81,
+  "puzzle_id": "iso_reconstruction_easy_0081",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0040.json b/task_10_iso_reconstruction/easy/meta_0040.json
new file mode 100644
index 0000000000000000000000000000000000000000..2c58e0b1bd801ba60c2cec7eb75a9c6f1be79d4c
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0040.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 82,
+  "puzzle_id": "iso_reconstruction_easy_0082",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0041.json b/task_10_iso_reconstruction/easy/meta_0041.json
new file mode 100644
index 0000000000000000000000000000000000000000..eff7edde5c64e256296619f6ab59c3876aaee445
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0041.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 83,
+  "puzzle_id": "iso_reconstruction_easy_0083",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0042.json b/task_10_iso_reconstruction/easy/meta_0042.json
new file mode 100644
index 0000000000000000000000000000000000000000..ff3d15e75956890a1621b2515b4003bc7ce92eef
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0042.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 84,
+  "puzzle_id": "iso_reconstruction_easy_0084",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0043.json b/task_10_iso_reconstruction/easy/meta_0043.json
new file mode 100644
index 0000000000000000000000000000000000000000..03c0a356eba9c8545b4db54b4dbcb56a83e1fd68
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0043.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 85,
+  "puzzle_id": "iso_reconstruction_easy_0085",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0046.json b/task_10_iso_reconstruction/easy/meta_0046.json
new file mode 100644
index 0000000000000000000000000000000000000000..e039fbac332bacf17bc74aaaca0bb980cfae581f
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0046.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 88,
+  "puzzle_id": "iso_reconstruction_easy_0088",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0047.json b/task_10_iso_reconstruction/easy/meta_0047.json
new file mode 100644
index 0000000000000000000000000000000000000000..a3e79ad10a802cfb4a4d42ef4f1a80021969b610
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0047.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 89,
+  "puzzle_id": "iso_reconstruction_easy_0089",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0048.json b/task_10_iso_reconstruction/easy/meta_0048.json
new file mode 100644
index 0000000000000000000000000000000000000000..63d45fa13dddd7007cf321837603671487aa0bfd
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0048.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 90,
+  "puzzle_id": "iso_reconstruction_easy_0090",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0050.json b/task_10_iso_reconstruction/easy/meta_0050.json
new file mode 100644
index 0000000000000000000000000000000000000000..97363a666d73f774cc8ad1e1c3aec95ecb1f1320
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0050.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 92,
+  "puzzle_id": "iso_reconstruction_easy_0092",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0051.json b/task_10_iso_reconstruction/easy/meta_0051.json
new file mode 100644
index 0000000000000000000000000000000000000000..2cc394c33715d7c9b9157c58cd4e9b4488f5f83a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0051.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 93,
+  "puzzle_id": "iso_reconstruction_easy_0093",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0052.json b/task_10_iso_reconstruction/easy/meta_0052.json
new file mode 100644
index 0000000000000000000000000000000000000000..aa112fb471b67410aa6ed5a900ff7dc2135bf54a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0052.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 94,
+  "puzzle_id": "iso_reconstruction_easy_0094",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0054.json b/task_10_iso_reconstruction/easy/meta_0054.json
new file mode 100644
index 0000000000000000000000000000000000000000..d23af69cad2cea48df2bfcee74061d9377551a9f
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0054.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 96,
+  "puzzle_id": "iso_reconstruction_easy_0096",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0055.json b/task_10_iso_reconstruction/easy/meta_0055.json
new file mode 100644
index 0000000000000000000000000000000000000000..4a09eeeb0d018199e30835c80c19da36a035662f
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0055.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 97,
+  "puzzle_id": "iso_reconstruction_easy_0097",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0056.json b/task_10_iso_reconstruction/easy/meta_0056.json
new file mode 100644
index 0000000000000000000000000000000000000000..f811a37126a8840ac020d5c6a8d030a5f2fe4ab8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0056.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 98,
+  "puzzle_id": "iso_reconstruction_easy_0098",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0057.json b/task_10_iso_reconstruction/easy/meta_0057.json
new file mode 100644
index 0000000000000000000000000000000000000000..954010ed19261010b3c7e5d7a371bc6504e3a8ae
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0057.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 99,
+  "puzzle_id": "iso_reconstruction_easy_0099",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0058.json b/task_10_iso_reconstruction/easy/meta_0058.json
new file mode 100644
index 0000000000000000000000000000000000000000..b491868c434c2a0bfdfd6ccb36cf13ab9653d9cf
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0058.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 100,
+  "puzzle_id": "iso_reconstruction_easy_0100",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0059.json b/task_10_iso_reconstruction/easy/meta_0059.json
new file mode 100644
index 0000000000000000000000000000000000000000..226c4056c641e28d7c7e623c8bf92c525cd7a4aa
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0059.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 101,
+  "puzzle_id": "iso_reconstruction_easy_0101",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0060.json b/task_10_iso_reconstruction/easy/meta_0060.json
new file mode 100644
index 0000000000000000000000000000000000000000..19dc6ff39728d7866387d7450ee108b9d56026f4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0060.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 102,
+  "puzzle_id": "iso_reconstruction_easy_0102",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0061.json b/task_10_iso_reconstruction/easy/meta_0061.json
new file mode 100644
index 0000000000000000000000000000000000000000..e0e9f0426f388f60a33a87771c858a37bbe264be
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0061.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 103,
+  "puzzle_id": "iso_reconstruction_easy_0103",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0062.json b/task_10_iso_reconstruction/easy/meta_0062.json
new file mode 100644
index 0000000000000000000000000000000000000000..fc5b6b8394074e180e9d7abe406f92d9bae288ab
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0062.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 104,
+  "puzzle_id": "iso_reconstruction_easy_0104",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0063.json b/task_10_iso_reconstruction/easy/meta_0063.json
new file mode 100644
index 0000000000000000000000000000000000000000..270fec0ff1f19c1446a53ce15dba1f1a0d327258
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0063.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 105,
+  "puzzle_id": "iso_reconstruction_easy_0105",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0064.json b/task_10_iso_reconstruction/easy/meta_0064.json
new file mode 100644
index 0000000000000000000000000000000000000000..53a86a0aa203e138acc413bf3462366b78ba3c32
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0064.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 106,
+  "puzzle_id": "iso_reconstruction_easy_0106",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0066.json b/task_10_iso_reconstruction/easy/meta_0066.json
new file mode 100644
index 0000000000000000000000000000000000000000..00b5257f6243d67b0f18c1b1d2ae3e8299834ef9
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0066.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 108,
+  "puzzle_id": "iso_reconstruction_easy_0108",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0067.json b/task_10_iso_reconstruction/easy/meta_0067.json
new file mode 100644
index 0000000000000000000000000000000000000000..d30849c4f17dbc9fb58439bbd2c60b2f002d403e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0067.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 109,
+  "puzzle_id": "iso_reconstruction_easy_0109",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0068.json b/task_10_iso_reconstruction/easy/meta_0068.json
new file mode 100644
index 0000000000000000000000000000000000000000..be270fac8b277741bbf8992201dd2c0c5a9f5c41
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0068.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 110,
+  "puzzle_id": "iso_reconstruction_easy_0110",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0070.json b/task_10_iso_reconstruction/easy/meta_0070.json
new file mode 100644
index 0000000000000000000000000000000000000000..d8522c1a53159c61d9a0b09b3937fdd799e4d104
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0070.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 112,
+  "puzzle_id": "iso_reconstruction_easy_0112",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0071.json b/task_10_iso_reconstruction/easy/meta_0071.json
new file mode 100644
index 0000000000000000000000000000000000000000..957fe558a75ceff211c47dd105e65a6743fb5fbb
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0071.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 113,
+  "puzzle_id": "iso_reconstruction_easy_0113",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0072.json b/task_10_iso_reconstruction/easy/meta_0072.json
new file mode 100644
index 0000000000000000000000000000000000000000..b25d085d2956593f791a0b429df39ed2a7b15548
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0072.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 114,
+  "puzzle_id": "iso_reconstruction_easy_0114",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0074.json b/task_10_iso_reconstruction/easy/meta_0074.json
new file mode 100644
index 0000000000000000000000000000000000000000..a9c0ae5f12de71f7797a365200a3f9f47126559d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0074.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 116,
+  "puzzle_id": "iso_reconstruction_easy_0116",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0075.json b/task_10_iso_reconstruction/easy/meta_0075.json
new file mode 100644
index 0000000000000000000000000000000000000000..6a81ff2b1662c8d5a6e47a0096076d1f442d4bf0
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0075.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 117,
+  "puzzle_id": "iso_reconstruction_easy_0117",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0076.json b/task_10_iso_reconstruction/easy/meta_0076.json
new file mode 100644
index 0000000000000000000000000000000000000000..2cd3507448318f9739151f5cc02f5a387e0d9d20
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0076.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 118,
+  "puzzle_id": "iso_reconstruction_easy_0118",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0077.json b/task_10_iso_reconstruction/easy/meta_0077.json
new file mode 100644
index 0000000000000000000000000000000000000000..526a01530928a3ba6c98ea704283a5ea1722dae8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0077.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 119,
+  "puzzle_id": "iso_reconstruction_easy_0119",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0078.json b/task_10_iso_reconstruction/easy/meta_0078.json
new file mode 100644
index 0000000000000000000000000000000000000000..114b66a66783cb834315e41410288410358c19c4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0078.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 120,
+  "puzzle_id": "iso_reconstruction_easy_0120",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0079.json b/task_10_iso_reconstruction/easy/meta_0079.json
new file mode 100644
index 0000000000000000000000000000000000000000..f2b5a8866b41bdbd011438e3340ab682faeab1b6
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0079.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 121,
+  "puzzle_id": "iso_reconstruction_easy_0121",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0080.json b/task_10_iso_reconstruction/easy/meta_0080.json
new file mode 100644
index 0000000000000000000000000000000000000000..0068cba23ac41213155fa76e45503425305c51e3
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0080.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 122,
+  "puzzle_id": "iso_reconstruction_easy_0122",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0081.json b/task_10_iso_reconstruction/easy/meta_0081.json
new file mode 100644
index 0000000000000000000000000000000000000000..17dae92ab8a42804b0ad6d6b69599715b165554a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0081.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 123,
+  "puzzle_id": "iso_reconstruction_easy_0123",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0082.json b/task_10_iso_reconstruction/easy/meta_0082.json
new file mode 100644
index 0000000000000000000000000000000000000000..8ba0ef69711b770df790b6f5ce42d4d88d978a48
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0082.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 124,
+  "puzzle_id": "iso_reconstruction_easy_0124",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0083.json b/task_10_iso_reconstruction/easy/meta_0083.json
new file mode 100644
index 0000000000000000000000000000000000000000..9157e431fb0144736461f9ecb6b3880e8dc0bd1d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0083.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 125,
+  "puzzle_id": "iso_reconstruction_easy_0125",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0084.json b/task_10_iso_reconstruction/easy/meta_0084.json
new file mode 100644
index 0000000000000000000000000000000000000000..5941d7a08efdd89306ae0519232e75c5c2555bd0
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0084.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 126,
+  "puzzle_id": "iso_reconstruction_easy_0126",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0085.json b/task_10_iso_reconstruction/easy/meta_0085.json
new file mode 100644
index 0000000000000000000000000000000000000000..e6036128af3db791fe84ebf2319444c11c052648
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0085.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 127,
+  "puzzle_id": "iso_reconstruction_easy_0127",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0087.json b/task_10_iso_reconstruction/easy/meta_0087.json
new file mode 100644
index 0000000000000000000000000000000000000000..52a1d6191a9399dea1a05f1570425f1bbcc98bd2
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0087.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 129,
+  "puzzle_id": "iso_reconstruction_easy_0129",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0088.json b/task_10_iso_reconstruction/easy/meta_0088.json
new file mode 100644
index 0000000000000000000000000000000000000000..d34cffb5bc437592034d9ec2e5c2da1184a6ff85
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0088.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 130,
+  "puzzle_id": "iso_reconstruction_easy_0130",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0089.json b/task_10_iso_reconstruction/easy/meta_0089.json
new file mode 100644
index 0000000000000000000000000000000000000000..68783eb8e398bc74fb93f1d057d99f3bb241006a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0089.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 131,
+  "puzzle_id": "iso_reconstruction_easy_0131",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0091.json b/task_10_iso_reconstruction/easy/meta_0091.json
new file mode 100644
index 0000000000000000000000000000000000000000..b81d5e2755568e04ac69c60e0f1a6d952b089496
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0091.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 133,
+  "puzzle_id": "iso_reconstruction_easy_0133",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0092.json b/task_10_iso_reconstruction/easy/meta_0092.json
new file mode 100644
index 0000000000000000000000000000000000000000..c671d64401c4d409ef45257e6c0c6f0538e1c2f4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0092.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 134,
+  "puzzle_id": "iso_reconstruction_easy_0134",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0093.json b/task_10_iso_reconstruction/easy/meta_0093.json
new file mode 100644
index 0000000000000000000000000000000000000000..80938da69c01791677e11e694042076da5a504bc
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0093.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 135,
+  "puzzle_id": "iso_reconstruction_easy_0135",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0094.json b/task_10_iso_reconstruction/easy/meta_0094.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca538c0f0eb22493586df3914f2a0b29b6c5a272
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0094.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 136,
+  "puzzle_id": "iso_reconstruction_easy_0136",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0095.json b/task_10_iso_reconstruction/easy/meta_0095.json
new file mode 100644
index 0000000000000000000000000000000000000000..442230e9aa9ecf4877292ba1ef4a32856eb27acf
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0095.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 137,
+  "puzzle_id": "iso_reconstruction_easy_0137",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0096.json b/task_10_iso_reconstruction/easy/meta_0096.json
new file mode 100644
index 0000000000000000000000000000000000000000..bc4d428fcdeb8cef07788a357bb3adb291e582f4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0096.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 138,
+  "puzzle_id": "iso_reconstruction_easy_0138",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0097.json b/task_10_iso_reconstruction/easy/meta_0097.json
new file mode 100644
index 0000000000000000000000000000000000000000..9b3f43cf218430e0baf7b20c9c75dbdaaba8a8cc
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0097.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 139,
+  "puzzle_id": "iso_reconstruction_easy_0139",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0098.json b/task_10_iso_reconstruction/easy/meta_0098.json
new file mode 100644
index 0000000000000000000000000000000000000000..20ec48fb614de31c1209a2b44e5663dd2b8d7160
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0098.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 140,
+  "puzzle_id": "iso_reconstruction_easy_0140",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0099.json b/task_10_iso_reconstruction/easy/meta_0099.json
new file mode 100644
index 0000000000000000000000000000000000000000..f286eb28dd9a99cb2946453929193c4e3b5459da
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0099.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 141,
+  "puzzle_id": "iso_reconstruction_easy_0141",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0102.json b/task_10_iso_reconstruction/easy/meta_0102.json
new file mode 100644
index 0000000000000000000000000000000000000000..20d5bcb5977275a2baf04ad4c25f8bcc9c76f340
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0102.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 144,
+  "puzzle_id": "iso_reconstruction_easy_0144",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0103.json b/task_10_iso_reconstruction/easy/meta_0103.json
new file mode 100644
index 0000000000000000000000000000000000000000..236584467a666f2a40200ac8d5fa262adfb60503
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0103.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 145,
+  "puzzle_id": "iso_reconstruction_easy_0145",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0104.json b/task_10_iso_reconstruction/easy/meta_0104.json
new file mode 100644
index 0000000000000000000000000000000000000000..d3ceeaa629c06fb6edf4c0fab26207485fdede22
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0104.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 146,
+  "puzzle_id": "iso_reconstruction_easy_0146",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0105.json b/task_10_iso_reconstruction/easy/meta_0105.json
new file mode 100644
index 0000000000000000000000000000000000000000..4533a74fdbe9b7dfd6b22d450e9d5d275c706fd6
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0105.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 147,
+  "puzzle_id": "iso_reconstruction_easy_0147",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0106.json b/task_10_iso_reconstruction/easy/meta_0106.json
new file mode 100644
index 0000000000000000000000000000000000000000..8a3bbfa479d65c1958dbddfd1b8a5d941cc85fe7
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0106.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 148,
+  "puzzle_id": "iso_reconstruction_easy_0148",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0107.json b/task_10_iso_reconstruction/easy/meta_0107.json
new file mode 100644
index 0000000000000000000000000000000000000000..e9ac2097e42eb4300e838e8a7faae749fec3ea22
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0107.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 149,
+  "puzzle_id": "iso_reconstruction_easy_0149",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0108.json b/task_10_iso_reconstruction/easy/meta_0108.json
new file mode 100644
index 0000000000000000000000000000000000000000..7b9e99bb38daee24ab39a4c745eb451ec06457fa
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0108.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 150,
+  "puzzle_id": "iso_reconstruction_easy_0150",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0109.json b/task_10_iso_reconstruction/easy/meta_0109.json
new file mode 100644
index 0000000000000000000000000000000000000000..10e8483197af3f145d65253f4a9e517255b63266
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0109.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 151,
+  "puzzle_id": "iso_reconstruction_easy_0151",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0110.json b/task_10_iso_reconstruction/easy/meta_0110.json
new file mode 100644
index 0000000000000000000000000000000000000000..760a18fffd47e2fa5021bf7f2c6e3841e8ec1cd5
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0110.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 152,
+  "puzzle_id": "iso_reconstruction_easy_0152",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0111.json b/task_10_iso_reconstruction/easy/meta_0111.json
new file mode 100644
index 0000000000000000000000000000000000000000..093e78b2a460bb98377c8e49ca59b27827d8bf78
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0111.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 153,
+  "puzzle_id": "iso_reconstruction_easy_0153",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0112.json b/task_10_iso_reconstruction/easy/meta_0112.json
new file mode 100644
index 0000000000000000000000000000000000000000..6dddcd03b2f9f8e95080eaee3af53f271c197763
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0112.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 154,
+  "puzzle_id": "iso_reconstruction_easy_0154",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0113.json b/task_10_iso_reconstruction/easy/meta_0113.json
new file mode 100644
index 0000000000000000000000000000000000000000..e7adcb2845a586165a991eefde4c1e28dd17036f
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0113.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 155,
+  "puzzle_id": "iso_reconstruction_easy_0155",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0114.json b/task_10_iso_reconstruction/easy/meta_0114.json
new file mode 100644
index 0000000000000000000000000000000000000000..c001f0b13a189fad63dfb693edfad09326dde428
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0114.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 156,
+  "puzzle_id": "iso_reconstruction_easy_0156",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0115.json b/task_10_iso_reconstruction/easy/meta_0115.json
new file mode 100644
index 0000000000000000000000000000000000000000..8173ccf25250a16011d79a4248e238bb4ff52bc6
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0115.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 157,
+  "puzzle_id": "iso_reconstruction_easy_0157",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0117.json b/task_10_iso_reconstruction/easy/meta_0117.json
new file mode 100644
index 0000000000000000000000000000000000000000..e90ff67f8998f489b2c847daa8367739c1861e96
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0117.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 159,
+  "puzzle_id": "iso_reconstruction_easy_0159",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0118.json b/task_10_iso_reconstruction/easy/meta_0118.json
new file mode 100644
index 0000000000000000000000000000000000000000..4fa73e34af8492f6ee2e4b31e22c8ddf913b5301
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0118.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 160,
+  "puzzle_id": "iso_reconstruction_easy_0160",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0119.json b/task_10_iso_reconstruction/easy/meta_0119.json
new file mode 100644
index 0000000000000000000000000000000000000000..4c62e40238ced02a816ded7391955eef76fb3649
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0119.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 161,
+  "puzzle_id": "iso_reconstruction_easy_0161",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0121.json b/task_10_iso_reconstruction/easy/meta_0121.json
new file mode 100644
index 0000000000000000000000000000000000000000..1a7cc0f81c2db0ddac8872fdf5573f48c3fe6670
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0121.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 163,
+  "puzzle_id": "iso_reconstruction_easy_0163",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0122.json b/task_10_iso_reconstruction/easy/meta_0122.json
new file mode 100644
index 0000000000000000000000000000000000000000..6f321ddbee5247da462df8a35ef75c04347ef281
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0122.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 164,
+  "puzzle_id": "iso_reconstruction_easy_0164",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0123.json b/task_10_iso_reconstruction/easy/meta_0123.json
new file mode 100644
index 0000000000000000000000000000000000000000..ea4ca7d32ead5784a210e462f498c60bb42c896d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0123.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 165,
+  "puzzle_id": "iso_reconstruction_easy_0165",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0124.json b/task_10_iso_reconstruction/easy/meta_0124.json
new file mode 100644
index 0000000000000000000000000000000000000000..f712704a7c9e0ceff95cb03f1558af93fc9acfa2
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0124.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 166,
+  "puzzle_id": "iso_reconstruction_easy_0166",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0125.json b/task_10_iso_reconstruction/easy/meta_0125.json
new file mode 100644
index 0000000000000000000000000000000000000000..d31c873aa7032bb91e8971f9f0ac3635fc8f46e3
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0125.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 167,
+  "puzzle_id": "iso_reconstruction_easy_0167",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0126.json b/task_10_iso_reconstruction/easy/meta_0126.json
new file mode 100644
index 0000000000000000000000000000000000000000..f141141ab3f188d9a1438adc3e069d4ebe9cf70e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0126.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 168,
+  "puzzle_id": "iso_reconstruction_easy_0168",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0127.json b/task_10_iso_reconstruction/easy/meta_0127.json
new file mode 100644
index 0000000000000000000000000000000000000000..ca81c7f6f0ed44f983913641085f1a91661c54c7
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0127.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 169,
+  "puzzle_id": "iso_reconstruction_easy_0169",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0128.json b/task_10_iso_reconstruction/easy/meta_0128.json
new file mode 100644
index 0000000000000000000000000000000000000000..15978dd355807f4992cc9b27496960fd1ab3f07b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0128.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 170,
+  "puzzle_id": "iso_reconstruction_easy_0170",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0129.json b/task_10_iso_reconstruction/easy/meta_0129.json
new file mode 100644
index 0000000000000000000000000000000000000000..a7c3e428ff7a5e971b4afb08d63320b145a1a144
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0129.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 171,
+  "puzzle_id": "iso_reconstruction_easy_0171",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0130.json b/task_10_iso_reconstruction/easy/meta_0130.json
new file mode 100644
index 0000000000000000000000000000000000000000..6985a466f8149011f33a17ae60a968e910b04855
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0130.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 172,
+  "puzzle_id": "iso_reconstruction_easy_0172",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0131.json b/task_10_iso_reconstruction/easy/meta_0131.json
new file mode 100644
index 0000000000000000000000000000000000000000..5860fdad6614d859048859ce9416de85e1867f6d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0131.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 173,
+  "puzzle_id": "iso_reconstruction_easy_0173",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0132.json b/task_10_iso_reconstruction/easy/meta_0132.json
new file mode 100644
index 0000000000000000000000000000000000000000..32c9549a6c90f12c2d5c6f81a29581525903cb97
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0132.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 174,
+  "puzzle_id": "iso_reconstruction_easy_0174",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0133.json b/task_10_iso_reconstruction/easy/meta_0133.json
new file mode 100644
index 0000000000000000000000000000000000000000..3937be0d85fac5e0d79c5aa20a91622d4cb2acb2
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0133.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 175,
+  "puzzle_id": "iso_reconstruction_easy_0175",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0134.json b/task_10_iso_reconstruction/easy/meta_0134.json
new file mode 100644
index 0000000000000000000000000000000000000000..99d3f194c9b6f2a6b9a338870144e1d6e8c74a0c
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0134.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 176,
+  "puzzle_id": "iso_reconstruction_easy_0176",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0135.json b/task_10_iso_reconstruction/easy/meta_0135.json
new file mode 100644
index 0000000000000000000000000000000000000000..10b8ea011b10f8e04155432c4c69eb884dd3defc
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0135.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 177,
+  "puzzle_id": "iso_reconstruction_easy_0177",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0137.json b/task_10_iso_reconstruction/easy/meta_0137.json
new file mode 100644
index 0000000000000000000000000000000000000000..adc4773566e672e4d54825a5a63471771e65f6c8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0137.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 179,
+  "puzzle_id": "iso_reconstruction_easy_0179",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0138.json b/task_10_iso_reconstruction/easy/meta_0138.json
new file mode 100644
index 0000000000000000000000000000000000000000..eeb2119477d7b6a76069409d9ac3046debf3e8f5
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0138.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 180,
+  "puzzle_id": "iso_reconstruction_easy_0180",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0139.json b/task_10_iso_reconstruction/easy/meta_0139.json
new file mode 100644
index 0000000000000000000000000000000000000000..12ea169a16637c7dfe6a9f8e4236e433dbecfc0a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0139.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 181,
+  "puzzle_id": "iso_reconstruction_easy_0181",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0140.json b/task_10_iso_reconstruction/easy/meta_0140.json
new file mode 100644
index 0000000000000000000000000000000000000000..50ab7e7b3c5922faa95836d50e230cc3459e9f6a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0140.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 182,
+  "puzzle_id": "iso_reconstruction_easy_0182",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0142.json b/task_10_iso_reconstruction/easy/meta_0142.json
new file mode 100644
index 0000000000000000000000000000000000000000..59b0433b747f8d6f7233196acf5c46c6df93ec7e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0142.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 184,
+  "puzzle_id": "iso_reconstruction_easy_0184",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0143.json b/task_10_iso_reconstruction/easy/meta_0143.json
new file mode 100644
index 0000000000000000000000000000000000000000..c4dd3ed5d502b1f626a71812108535aeff0fda12
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0143.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 185,
+  "puzzle_id": "iso_reconstruction_easy_0185",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0144.json b/task_10_iso_reconstruction/easy/meta_0144.json
new file mode 100644
index 0000000000000000000000000000000000000000..8c4e92c138d74f22e4be8ec31bb240841460b13b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0144.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 186,
+  "puzzle_id": "iso_reconstruction_easy_0186",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0145.json b/task_10_iso_reconstruction/easy/meta_0145.json
new file mode 100644
index 0000000000000000000000000000000000000000..24d32c5ee31a57b648671c2a8ac245d71a29888f
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0145.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 187,
+  "puzzle_id": "iso_reconstruction_easy_0187",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0146.json b/task_10_iso_reconstruction/easy/meta_0146.json
new file mode 100644
index 0000000000000000000000000000000000000000..e1e3f28c8cf3700fb213fd476729ffaf0d1302f8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0146.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 188,
+  "puzzle_id": "iso_reconstruction_easy_0188",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0147.json b/task_10_iso_reconstruction/easy/meta_0147.json
new file mode 100644
index 0000000000000000000000000000000000000000..f7b6e1f46150ad69781142662a5597a383f32cff
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0147.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 189,
+  "puzzle_id": "iso_reconstruction_easy_0189",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0148.json b/task_10_iso_reconstruction/easy/meta_0148.json
new file mode 100644
index 0000000000000000000000000000000000000000..7fe1a923b4769433eb8e4d9e87eca22d292ee8db
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0148.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 190,
+  "puzzle_id": "iso_reconstruction_easy_0190",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0149.json b/task_10_iso_reconstruction/easy/meta_0149.json
new file mode 100644
index 0000000000000000000000000000000000000000..87cb7b92d0dd6843355c3a7f5aa353335b08c530
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0149.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 191,
+  "puzzle_id": "iso_reconstruction_easy_0191",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0150.json b/task_10_iso_reconstruction/easy/meta_0150.json
new file mode 100644
index 0000000000000000000000000000000000000000..d98f919f000234c1d6cb5646ac7f6d9dc55580d0
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0150.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 192,
+  "puzzle_id": "iso_reconstruction_easy_0192",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0151.json b/task_10_iso_reconstruction/easy/meta_0151.json
new file mode 100644
index 0000000000000000000000000000000000000000..bf5f5d579bfa81c794db398164a694afe86fee6b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0151.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 193,
+  "puzzle_id": "iso_reconstruction_easy_0193",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0152.json b/task_10_iso_reconstruction/easy/meta_0152.json
new file mode 100644
index 0000000000000000000000000000000000000000..2744a2b5aee4c1991bdce09344aa26610b16122d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0152.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 194,
+  "puzzle_id": "iso_reconstruction_easy_0194",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0153.json b/task_10_iso_reconstruction/easy/meta_0153.json
new file mode 100644
index 0000000000000000000000000000000000000000..3d76cce6a0d445094055fa8939c1950960ddb497
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0153.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 195,
+  "puzzle_id": "iso_reconstruction_easy_0195",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0154.json b/task_10_iso_reconstruction/easy/meta_0154.json
new file mode 100644
index 0000000000000000000000000000000000000000..f735b40af642e640e1e1ee45ead0d4c055932a8d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0154.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 196,
+  "puzzle_id": "iso_reconstruction_easy_0196",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0155.json b/task_10_iso_reconstruction/easy/meta_0155.json
new file mode 100644
index 0000000000000000000000000000000000000000..fb2b782dede550dfdf56155e3697304fe8b83166
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0155.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 197,
+  "puzzle_id": "iso_reconstruction_easy_0197",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0158.json b/task_10_iso_reconstruction/easy/meta_0158.json
new file mode 100644
index 0000000000000000000000000000000000000000..89ba3eae537f2b375096c16a083b716ee474df13
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0158.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 200,
+  "puzzle_id": "iso_reconstruction_easy_0200",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0159.json b/task_10_iso_reconstruction/easy/meta_0159.json
new file mode 100644
index 0000000000000000000000000000000000000000..e1b667dfb8f93b28d6bc9f3540300ffe3e25024a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0159.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 201,
+  "puzzle_id": "iso_reconstruction_easy_0201",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0160.json b/task_10_iso_reconstruction/easy/meta_0160.json
new file mode 100644
index 0000000000000000000000000000000000000000..f9d32a0f790bcbe511f6cdb5f2c701b7e9a1120d
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0160.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 202,
+  "puzzle_id": "iso_reconstruction_easy_0202",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0162.json b/task_10_iso_reconstruction/easy/meta_0162.json
new file mode 100644
index 0000000000000000000000000000000000000000..4a408269a1d00a25c29fcac23648afac26581896
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0162.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 204,
+  "puzzle_id": "iso_reconstruction_easy_0204",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0163.json b/task_10_iso_reconstruction/easy/meta_0163.json
new file mode 100644
index 0000000000000000000000000000000000000000..2a59daada6b8d0ee0a6d873b96e4825dfb94abc4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0163.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 205,
+  "puzzle_id": "iso_reconstruction_easy_0205",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0164.json b/task_10_iso_reconstruction/easy/meta_0164.json
new file mode 100644
index 0000000000000000000000000000000000000000..353f830d09681eea83a73c3791920ba85bcc6518
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0164.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 206,
+  "puzzle_id": "iso_reconstruction_easy_0206",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0165.json b/task_10_iso_reconstruction/easy/meta_0165.json
new file mode 100644
index 0000000000000000000000000000000000000000..30f88d7f927b85e3652e069f031d8b4e22dbfa01
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0165.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 207,
+  "puzzle_id": "iso_reconstruction_easy_0207",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0166.json b/task_10_iso_reconstruction/easy/meta_0166.json
new file mode 100644
index 0000000000000000000000000000000000000000..e1b4dccf679809fae64950dec24b7fe086108892
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0166.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 208,
+  "puzzle_id": "iso_reconstruction_easy_0208",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0167.json b/task_10_iso_reconstruction/easy/meta_0167.json
new file mode 100644
index 0000000000000000000000000000000000000000..782d60227ce27d651df2781c142207271812eef0
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0167.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 209,
+  "puzzle_id": "iso_reconstruction_easy_0209",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0168.json b/task_10_iso_reconstruction/easy/meta_0168.json
new file mode 100644
index 0000000000000000000000000000000000000000..341fb866f6cc514af047a293b2f1af1501e4358b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0168.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 210,
+  "puzzle_id": "iso_reconstruction_easy_0210",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0169.json b/task_10_iso_reconstruction/easy/meta_0169.json
new file mode 100644
index 0000000000000000000000000000000000000000..cdbddc3a87e452505a90cbb66cf8ac7c3927b9b6
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0169.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 211,
+  "puzzle_id": "iso_reconstruction_easy_0211",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0170.json b/task_10_iso_reconstruction/easy/meta_0170.json
new file mode 100644
index 0000000000000000000000000000000000000000..28ff0c0f41b573fea2437832de50a71ac8373fbe
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0170.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 212,
+  "puzzle_id": "iso_reconstruction_easy_0212",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0171.json b/task_10_iso_reconstruction/easy/meta_0171.json
new file mode 100644
index 0000000000000000000000000000000000000000..c40796a3cfea028f6ae362903bcba20b4e19befc
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0171.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 213,
+  "puzzle_id": "iso_reconstruction_easy_0213",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0172.json b/task_10_iso_reconstruction/easy/meta_0172.json
new file mode 100644
index 0000000000000000000000000000000000000000..79605483913ef5ee647104f298139351106c8274
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0172.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 214,
+  "puzzle_id": "iso_reconstruction_easy_0214",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0173.json b/task_10_iso_reconstruction/easy/meta_0173.json
new file mode 100644
index 0000000000000000000000000000000000000000..7544336d9d26c8c2053427972e375acbd36d16f8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0173.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 215,
+  "puzzle_id": "iso_reconstruction_easy_0215",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0174.json b/task_10_iso_reconstruction/easy/meta_0174.json
new file mode 100644
index 0000000000000000000000000000000000000000..873c6bd473102978e3de8c31d41c8d443e781455
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0174.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 216,
+  "puzzle_id": "iso_reconstruction_easy_0216",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0175.json b/task_10_iso_reconstruction/easy/meta_0175.json
new file mode 100644
index 0000000000000000000000000000000000000000..ddcef5aa40b1099c3bf3922a69c2480d71a14889
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0175.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 217,
+  "puzzle_id": "iso_reconstruction_easy_0217",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0176.json b/task_10_iso_reconstruction/easy/meta_0176.json
new file mode 100644
index 0000000000000000000000000000000000000000..7011da62637205b232abe853011440280be093be
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0176.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 218,
+  "puzzle_id": "iso_reconstruction_easy_0218",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0178.json b/task_10_iso_reconstruction/easy/meta_0178.json
new file mode 100644
index 0000000000000000000000000000000000000000..d70b28568963525aaa0345ba87797033e9b29526
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0178.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 220,
+  "puzzle_id": "iso_reconstruction_easy_0220",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0179.json b/task_10_iso_reconstruction/easy/meta_0179.json
new file mode 100644
index 0000000000000000000000000000000000000000..ad8099d5c36996e21cbf322da7eb410bc84b733e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0179.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 221,
+  "puzzle_id": "iso_reconstruction_easy_0221",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0180.json b/task_10_iso_reconstruction/easy/meta_0180.json
new file mode 100644
index 0000000000000000000000000000000000000000..45896161c65fa7dbb18ce8c1cec58e4da4341a1e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0180.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 222,
+  "puzzle_id": "iso_reconstruction_easy_0222",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0181.json b/task_10_iso_reconstruction/easy/meta_0181.json
new file mode 100644
index 0000000000000000000000000000000000000000..2f07d7c36edc43cd80982b0544cce53c8749cfbc
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0181.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 223,
+  "puzzle_id": "iso_reconstruction_easy_0223",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0183.json b/task_10_iso_reconstruction/easy/meta_0183.json
new file mode 100644
index 0000000000000000000000000000000000000000..2553d27b75aa8743620061b9fe7e466b6e5e556e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0183.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 225,
+  "puzzle_id": "iso_reconstruction_easy_0225",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0184.json b/task_10_iso_reconstruction/easy/meta_0184.json
new file mode 100644
index 0000000000000000000000000000000000000000..0b8e7964461fc774c08262a8b99f6237decb74f0
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0184.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 226,
+  "puzzle_id": "iso_reconstruction_easy_0226",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0185.json b/task_10_iso_reconstruction/easy/meta_0185.json
new file mode 100644
index 0000000000000000000000000000000000000000..d4d75d61dfa2d2a01ea0d32cf9236c486265b45e
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0185.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 227,
+  "puzzle_id": "iso_reconstruction_easy_0227",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0186.json b/task_10_iso_reconstruction/easy/meta_0186.json
new file mode 100644
index 0000000000000000000000000000000000000000..4e04f533eff230368c720c7062ac8db12bf27ba8
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0186.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 228,
+  "puzzle_id": "iso_reconstruction_easy_0228",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0187.json b/task_10_iso_reconstruction/easy/meta_0187.json
new file mode 100644
index 0000000000000000000000000000000000000000..03d263101aa5aaafc64c997913406dea16440136
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0187.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 229,
+  "puzzle_id": "iso_reconstruction_easy_0229",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0188.json b/task_10_iso_reconstruction/easy/meta_0188.json
new file mode 100644
index 0000000000000000000000000000000000000000..3aefb55c383ab011516a1fcca5928e35d055b52b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0188.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 230,
+  "puzzle_id": "iso_reconstruction_easy_0230",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0189.json b/task_10_iso_reconstruction/easy/meta_0189.json
new file mode 100644
index 0000000000000000000000000000000000000000..45131d558b01a74fdc6dc9dd5443b6b3f495f3c3
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0189.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 231,
+  "puzzle_id": "iso_reconstruction_easy_0231",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0190.json b/task_10_iso_reconstruction/easy/meta_0190.json
new file mode 100644
index 0000000000000000000000000000000000000000..b52de07a62a33c52f313ee3cf18bbcaf8e0f341b
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0190.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 232,
+  "puzzle_id": "iso_reconstruction_easy_0232",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0191.json b/task_10_iso_reconstruction/easy/meta_0191.json
new file mode 100644
index 0000000000000000000000000000000000000000..a283d01712d75ba539b242bcd94024bb26537491
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0191.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 233,
+  "puzzle_id": "iso_reconstruction_easy_0233",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0192.json b/task_10_iso_reconstruction/easy/meta_0192.json
new file mode 100644
index 0000000000000000000000000000000000000000..2c0176064f899339e6af5854b110d8998b0adca4
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0192.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 234,
+  "puzzle_id": "iso_reconstruction_easy_0234",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0193.json b/task_10_iso_reconstruction/easy/meta_0193.json
new file mode 100644
index 0000000000000000000000000000000000000000..9b70fce8b24087fcfaaf15e1041fe862dd0e3a4a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0193.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 235,
+  "puzzle_id": "iso_reconstruction_easy_0235",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0195.json b/task_10_iso_reconstruction/easy/meta_0195.json
new file mode 100644
index 0000000000000000000000000000000000000000..92a5813c46162347044dc8eace3baac728dd46f9
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0195.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 237,
+  "puzzle_id": "iso_reconstruction_easy_0237",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0196.json b/task_10_iso_reconstruction/easy/meta_0196.json
new file mode 100644
index 0000000000000000000000000000000000000000..ed6bc31bb0054770de0ceed9eacf4df64fea213a
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0196.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 238,
+  "puzzle_id": "iso_reconstruction_easy_0238",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0197.json b/task_10_iso_reconstruction/easy/meta_0197.json
new file mode 100644
index 0000000000000000000000000000000000000000..99bd2f8da149cfa86dd6296e459528acbb880c43
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0197.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 239,
+  "puzzle_id": "iso_reconstruction_easy_0239",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}
diff --git a/task_10_iso_reconstruction/easy/meta_0199.json b/task_10_iso_reconstruction/easy/meta_0199.json
new file mode 100644
index 0000000000000000000000000000000000000000..3766557d53cdc5248f2a6cf87250cb6420f5d208
--- /dev/null
+++ b/task_10_iso_reconstruction/easy/meta_0199.json
@@ -0,0 +1,22 @@
+{
+  "task": "iso_reconstruction",
+  "difficulty": "easy",
+  "difficulty_params": {
+    "faces": 6,
+    "ambiguity": 0
+  },
+  "seed": 241,
+  "puzzle_id": "iso_reconstruction_easy_0241",
+  "distractors_count": 4,
+  "distractor_violations": [
+    "wrong_depth",
+    "missing_face",
+    "extra_volume",
+    "rotated"
+  ],
+  "resolutions": [
+    512,
+    1024,
+    2048
+  ]
+}