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The dataset generation failed
Error code:   DatasetGenerationError
Exception:    CastError
Message:      Couldn't cast
written: int64
target: int64
rate_pos_s: double
phase_counts: struct<endgame: int64, opening: int64, middlegame: int64>
  child 0, endgame: int64
  child 1, opening: int64
  child 2, middlegame: int64
phase_fracs: struct<opening: double, middlegame: double, endgame: double>
  child 0, opening: double
  child 1, middlegame: double
  child 2, endgame: double
depth_hist: struct<12: int64, 15: int64, 14: int64, 16: int64, 17: int64, 11: int64, 13: int64, 18: int64, 10: i (... 5 chars omitted)
  child 0, 12: int64
  child 1, 15: int64
  child 2, 14: int64
  child 3, 16: int64
  child 4, 17: int64
  child 5, 11: int64
  child 6, 13: int64
  child 7, 18: int64
  child 8, 10: int64
gen_hist: struct<book_playout: int64, endgame_template: int64, hf: int64, random_walk: int64>
  child 0, book_playout: int64
  child 1, endgame_template: int64
  child 2, hf: int64
  child 3, random_walk: int64
updated_at: string
label_depth: int64
fen: string
teacher_entropy: double
hf_repo: string
source: string
best_cp: int64
ply: int64
label_mode: string
value_target: int64
soft_targets: list<item: struct<uci: string, prob: double, cp: int64, eval_type: string, rank: int64, pv: list<ite (... 12 chars omitted)
  child 0, item: struct<uci: string, prob: double, cp: int64, eval_type: string, rank: int64, pv: list<item: string>>
      child 0, uci: string
      child 1, prob: double
      child 2, cp: int64
      child 3, eval_type: string
      child 4, rank: int64
      child 5, pv: list<item: string>
          child 0, item: string
mate: int64
phase_id: int64
cp_gap_top1_top2: int64
num_legal: int64
gen_source: string
label_multipv: int64
label_tau: double
created_at: string
best_move: string
phase: string
to
{'fen': Value('string'), 'best_move': Value('string'), 'best_cp': Value('int64'), 'soft_targets': List({'uci': Value('string'), 'prob': Value('float64'), 'cp': Value('int64'), 'eval_type': Value('string'), 'rank': Value('int64'), 'pv': List(Value('string'))}), 'label_depth': Value('int64'), 'label_multipv': Value('int64'), 'label_tau': Value('float64'), 'label_mode': Value('string'), 'num_legal': Value('int64'), 'phase': Value('string'), 'phase_id': Value('int64'), 'ply': Value('int64'), 'source': Value('string'), 'created_at': Value('string'), 'value_target': Value('int64'), 'cp_gap_top1_top2': Value('int64'), 'teacher_entropy': Value('float64'), 'mate': Value('int64'), 'hf_repo': Value('string'), 'gen_source': Value('string')}
because column names don't match
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1816, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 613, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
                  self._cast_table(pa_table, json_field_paths=json_field_paths),
                  ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
                  pa_table = table_cast(pa_table, self.info.features.arrow_schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2369, in table_cast
                  return cast_table_to_schema(table, schema)
                File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2297, in cast_table_to_schema
                  raise CastError(
                  ...<3 lines>...
                  )
              datasets.table.CastError: Couldn't cast
              written: int64
              target: int64
              rate_pos_s: double
              phase_counts: struct<endgame: int64, opening: int64, middlegame: int64>
                child 0, endgame: int64
                child 1, opening: int64
                child 2, middlegame: int64
              phase_fracs: struct<opening: double, middlegame: double, endgame: double>
                child 0, opening: double
                child 1, middlegame: double
                child 2, endgame: double
              depth_hist: struct<12: int64, 15: int64, 14: int64, 16: int64, 17: int64, 11: int64, 13: int64, 18: int64, 10: i (... 5 chars omitted)
                child 0, 12: int64
                child 1, 15: int64
                child 2, 14: int64
                child 3, 16: int64
                child 4, 17: int64
                child 5, 11: int64
                child 6, 13: int64
                child 7, 18: int64
                child 8, 10: int64
              gen_hist: struct<book_playout: int64, endgame_template: int64, hf: int64, random_walk: int64>
                child 0, book_playout: int64
                child 1, endgame_template: int64
                child 2, hf: int64
                child 3, random_walk: int64
              updated_at: string
              label_depth: int64
              fen: string
              teacher_entropy: double
              hf_repo: string
              source: string
              best_cp: int64
              ply: int64
              label_mode: string
              value_target: int64
              soft_targets: list<item: struct<uci: string, prob: double, cp: int64, eval_type: string, rank: int64, pv: list<ite (... 12 chars omitted)
                child 0, item: struct<uci: string, prob: double, cp: int64, eval_type: string, rank: int64, pv: list<item: string>>
                    child 0, uci: string
                    child 1, prob: double
                    child 2, cp: int64
                    child 3, eval_type: string
                    child 4, rank: int64
                    child 5, pv: list<item: string>
                        child 0, item: string
              mate: int64
              phase_id: int64
              cp_gap_top1_top2: int64
              num_legal: int64
              gen_source: string
              label_multipv: int64
              label_tau: double
              created_at: string
              best_move: string
              phase: string
              to
              {'fen': Value('string'), 'best_move': Value('string'), 'best_cp': Value('int64'), 'soft_targets': List({'uci': Value('string'), 'prob': Value('float64'), 'cp': Value('int64'), 'eval_type': Value('string'), 'rank': Value('int64'), 'pv': List(Value('string'))}), 'label_depth': Value('int64'), 'label_multipv': Value('int64'), 'label_tau': Value('float64'), 'label_mode': Value('string'), 'num_legal': Value('int64'), 'phase': Value('string'), 'phase_id': Value('int64'), 'ply': Value('int64'), 'source': Value('string'), 'created_at': Value('string'), 'value_target': Value('int64'), 'cp_gap_top1_top2': Value('int64'), 'teacher_entropy': Value('float64'), 'mate': Value('int64'), 'hf_repo': Value('string'), 'gen_source': Value('string')}
              because column names don't match
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1369, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 948, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1683, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1869, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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fen
string
best_move
string
best_cp
int64
soft_targets
list
label_depth
int64
label_multipv
int64
label_tau
float64
label_mode
string
num_legal
int64
phase
string
phase_id
int64
ply
int64
source
string
created_at
string
value_target
int64
cp_gap_top1_top2
int64
teacher_entropy
float64
mate
int64
hf_repo
string
gen_source
string
8/P7/8/8/3P4/5R1k/8/7K b - - 0 1
h3h4
-99,996
[ { "uci": "h3h4", "prob": 0.5, "cp": -99996, "eval_type": "mate", "rank": 1, "pv": [ "h3h4", "a7a8q", "h4h5", "a8g8", "h5h4", "f3f5", "h4h3", "f5h5" ] }, { "uci": "h3g4", "prob": 0.5, "cp": -99996, "eval_type": "mate", ...
16
2
120
multipv_topk
2
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:10.400372+00:00
0
0
0.693147
-4
null
endgame_template
2q2k2/6P1/8/3P4/7Q/8/8/7K b - - 0 1
f8g7
0
[ { "uci": "f8g7", "prob": 0.5, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "f8g7" ] }, { "uci": "f8f7", "prob": 0.5, "cp": 0, "eval_type": "cp", "rank": 2, "pv": [ "f8f7", "h4g5", "f7g8", "g5h6", "g8f7", "h6g5" ]...
18
4
120
multipv_topk
4
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:10.597804+00:00
1
0
0.693147
-3
null
endgame_template
8/2K5/8/8/8/3R4/1kR5/8 b - - 0 1
b2c2
-20,000
[ { "uci": "b2c2", "prob": 1, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "b2c2", "d3e3", "c2d2", "e3e6", "d2c3", "c7c6", "c3c4", "c6d6" ] }, { "uci": "b2b1", "prob": 0, "cp": -99997, "eval_type": "mate", "rank...
17
3
120
multipv_topk
3
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:11.001987+00:00
0
79,997
-0
-1
null
endgame_template
8/8/8/8/3Q4/8/8/k6K b - - 0 1
a1b1
-99,989
[ { "uci": "a1b1", "prob": 0.5020904541015625, "cp": -99989, "eval_type": "mate", "rank": 1, "pv": [ "a1b1", "d4c3", "b1a2", "h1h2", "a2b1", "h2g3", "b1a2", "g3g2" ] }, { "uci": "a1a2", "prob": 0.4979095757007599, "cp": -99990...
17
2
120
multipv_topk
2
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:11.105548+00:00
0
1
0.693138
-10
null
endgame_template
rn2kb1r/pp1bpppp/8/8/8/2p3K1/PP1B2PP/RN1Q3R w kq - 0 10
b1c3
471
[ { "uci": "b1c3", "prob": 0.35762229561805725, "cp": 471, "eval_type": "cp", "rank": 1, "pv": [ "b1c3", "b8c6", "a1c1", "e8c8", "h2h4", "e7e5", "c3b5", "f8c5" ] }, { "uci": "d1b3", "prob": 0.15803410112857819, "cp": 373, ...
10
8
120
multipv_topk
34
opening
0
20
exp190_phase_deep
2026-07-10T17:22:11.200299+00:00
2
98
1.811408
0
null
book_playout
8/2P2Q2/4q3/8/4P3/K5k1/8/8 w - - 0 1
f7e6
99,994
[ { "uci": "f7e6", "prob": 1, "cp": 99994, "eval_type": "mate", "rank": 1, "pv": [ "f7e6", "g3h2", "c7c8q", "h2g2", "e6h3", "g2f2", "c8f5", "f2e1" ] }, { "uci": "f7g7", "prob": 0, "cp": 19985, "eval_type": "cp", "rank"...
16
8
120
multipv_topk
24
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:11.299977+00:00
2
80,009
-0
6
null
endgame_template
8/8/8/8/8/kR1K2R1/8/8 b - - 0 1
a3b3
-99,991
[ { "uci": "a3b3", "prob": 0.3454686403274536, "cp": -99991, "eval_type": "mate", "rank": 1, "pv": [ "a3b3", "g3g5", "b3b4", "g5e5", "b4b3", "e5b5", "b3a3", "d3c3" ] }, { "uci": "a3a4", "prob": 0.3286239504814148, "cp": -99997...
17
3
120
multipv_topk
3
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:11.506662+00:00
0
6
1.098277
-2
null
endgame_template
1rbq1bnr/pp2k1pp/3p4/2p3B1/2P1P3/3P4/PP3PPP/RN3K1R b - - 2 12
g8f6
720
[ { "uci": "g8f6", "prob": 0.594354510307312, "cp": 720, "eval_type": "cp", "rank": 1, "pv": [ "g8f6", "b1c3", "c8e6", "c3d5", "e6d5", "c4d5", "e7d7", "g5f6" ] }, { "uci": "e7d7", "prob": 0.1702854186296463, "cp": 570, "ev...
11
5
120
multipv_topk
5
opening
0
23
exp190_phase_deep
2026-07-10T17:22:11.601215+00:00
2
150
1.134419
0
null
book_playout
7k/8/1R6/8/8/6K1/8/8 b - - 0 1
h8g7
-20,000
[ { "uci": "h8g7", "prob": 0.3333333432674408, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "h8g7", "g3h4", "g7f7", "h4h5", "f7g7", "b6g6", "g7f7", "g6c6" ] }, { "uci": "h8g8", "prob": 0.3333333432674408, "cp": -20000, ...
14
3
120
multipv_topk
3
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:11.604503+00:00
0
0
1.098612
0
null
endgame_template
8/8/8/3p4/3K4/7Q/1k6/8 b - - 0 1
b2c2
-99,994
[ { "uci": "b2c2", "prob": 0.2016688585281372, "cp": -99994, "eval_type": "mate", "rank": 1, "pv": [ "b2c2", "h3d3", "c2b2", "d4d5", "b2a1", "d3e2", "a1b1", "d5c4" ] }, { "uci": "b2a2", "prob": 0.2016688585281372, "cp": -99994...
15
5
120
multipv_topk
5
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:11.701712+00:00
0
0
1.60941
-4
null
endgame_template
rnb3n1/ppp1qkR1/3p4/3P1p2/8/8/PPP1PPP1/RN1QKB2 b Q - 0 10
f7g7
235
[ { "uci": "f7g7", "prob": 0.997866690158844, "cp": 235, "eval_type": "cp", "rank": 1, "pv": [ "f7g7", "a2a4", "b8d7", "a1a3", "d7c5", "a3h3", "g8f6" ] }, { "uci": "f7f8", "prob": 0.0009565898217260838, "cp": -599, "eval_type": ...
12
4
120
multipv_topk
4
opening
0
19
exp190_phase_deep
2026-07-10T17:22:11.899495+00:00
2
834
0.017532
0
null
book_playout
1n2kbnr/1pp2ppp/2r5/p2Kp3/4P3/8/PPP3PP/RNBQ2NR b k - 4 10
c6c5
99,999
[ { "uci": "c6c5", "prob": 0.33519411087036133, "cp": 99999, "eval_type": "mate", "rank": 1, "pv": [ "c6c5" ] }, { "uci": "b8d7", "prob": 0.3324029743671417, "cp": 99998, "eval_type": "mate", "rank": 2, "pv": [ "b8d7", "b2b4", "g8f6" ...
12
8
120
multipv_topk
33
opening
0
19
exp190_phase_deep
2026-07-10T17:22:11.902433+00:00
2
1
1.098605
2
null
book_playout
rnb2bnr/pp3kpp/8/4p3/8/2N5/PPPq1PPP/R1B1K1NR w KQ - 0 8
c1d2
-371
[ { "uci": "c1d2", "prob": 0.7011494040489197, "cp": -371, "eval_type": "cp", "rank": 1, "pv": [ "c1d2", "b8c6", "g1f3", "g8f6", "e1c1", "c8g4", "f3g5", "f7g8" ] }, { "uci": "e1d2", "prob": 0.2780277132987976, "cp": -482, ...
13
3
120
multipv_topk
3
opening
0
16
exp190_phase_deep
2026-07-10T17:22:12.397629+00:00
0
111
0.685437
0
null
book_playout
r4bnr/1p1kpppp/3p4/p1p1N3/4P3/1P5P/P1PP1P2/RNBQK3 b Q - 2 9
d6e5
-568
[ { "uci": "d6e5", "prob": 0.42881250381469727, "cp": -568, "eval_type": "cp", "rank": 1, "pv": [ "d6e5", "c1b2", "f7f6", "e1f1", "e7e6", "b1a3", "d7e8", "a3c4" ] }, { "uci": "d7e8", "prob": 0.2373066246509552, "cp": -639, ...
13
6
120
multipv_topk
6
opening
0
17
exp190_phase_deep
2026-07-10T17:22:12.400618+00:00
0
71
1.433564
-2
null
book_playout
6q1/5P2/7K/3Q4/8/8/8/3k4 b - - 0 1
d1c2
-99,996
[ { "uci": "d1c2", "prob": 0.25104522705078125, "cp": -99996, "eval_type": "mate", "rank": 1, "pv": [ "d1c2", "f7g8q", "c2c3", "d5c4", "c3d2", "g8g2", "d2e3", "g2e2" ] }, { "uci": "d1c1", "prob": 0.25104522705078125, "cp": -99...
16
4
120
multipv_topk
4
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:12.498972+00:00
0
0
1.386286
-3
null
endgame_template
rnbqkbnr/ppppp2p/6p1/5p1Q/4P3/8/PPPP1PPP/RNB1KBNR w KQkq - 0 3
h5h4
-34
[ { "uci": "h5h4", "prob": 0.1833002269268036, "cp": -34, "eval_type": "cp", "rank": 1, "pv": [ "h5h4", "e7e5", "h4d8", "e8d8", "g1f3", "b8c6", "f3g5", "g8h6" ] }, { "uci": "h5g5", "prob": 0.1700555980205536, "cp": -43, "e...
10
8
120
multipv_topk
39
opening
0
6
exp190_phase_deep
2026-07-10T17:22:12.598630+00:00
1
9
1.939074
0
null
book_playout
1R6/k6K/8/8/8/8/5R2/8 w - - 0 1
f2b2
99,998
[ { "uci": "f2b2", "prob": 0.12577953934669495, "cp": 99998, "eval_type": "mate", "rank": 1, "pv": [ "f2b2", "a7a6", "b2a2" ] }, { "uci": "b8b3", "prob": 0.12577953934669495, "cp": 99998, "eval_type": "mate", "rank": 2, "pv": [ "b8b3", ...
15
8
120
multipv_topk
33
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:12.600442+00:00
2
0
2.079418
4
null
endgame_template
5k2/2K5/8/8/3R4/8/8/8 b - - 0 1
f8f7
-99,988
[ { "uci": "f8f7", "prob": 0.20166638493537903, "cp": -99988, "eval_type": "mate", "rank": 1, "pv": [ "f8f7", "d4d6", "f7e7", "d6c6", "e7e8", "c6e6", "e8f8", "c7d7" ] }, { "uci": "f8e8", "prob": 0.20166638493537903, "cp": -999...
16
5
120
multipv_topk
5
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:12.797334+00:00
0
0
1.60941
-10
null
endgame_template
r1bqk1nr/pppp1pp1/7p/4P3/6P1/8/PPPPBb1P/RNBQK2R w KQkq - 0 8
e1f2
263
[ { "uci": "e1f2", "prob": 0.9529492259025574, "cp": 263, "eval_type": "cp", "rank": 1, "pv": [ "e1f2", "h6h5", "h2h4", "h5g4", "d2d4", "h8h4", "c1f4" ] }, { "uci": "e1f1", "prob": 0.047050826251506805, "cp": -98, "eval_type": "...
10
2
120
multipv_topk
2
opening
0
16
exp190_phase_deep
2026-07-10T17:22:12.803278+00:00
2
361
0.189738
0
null
book_playout
8/8/5K2/8/1R6/4P3/2P5/k7 w - - 0 1
c2c4
99,992
[ { "uci": "c2c4", "prob": 0.12656861543655396, "cp": 99992, "eval_type": "mate", "rank": 1, "pv": [ "c2c4", "a1a2", "b4b8", "a2a3", "c4c5", "a3a2", "c5c6", "a2a3" ] }, { "uci": "b4b8", "prob": 0.12656861543655396, "cp": 99992...
14
8
120
multipv_topk
25
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:12.800433+00:00
2
0
2.079415
10
null
endgame_template
8/8/8/1k6/8/8/3P4/K7 b - - 0 1
b5a6
0
[ { "uci": "b5a6", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "b5a6", "a1b2", "a6b6", "b2b3", "b6b5", "d2d3", "b5c5", "b3c3" ] }, { "uci": "b5c4", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
17
8
120
multipv_topk
8
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:12.807352+00:00
1
0
2.079442
0
null
endgame_template
rnbqkb1r/ppp1pNpp/3p1n2/8/8/8/PPPPPPPP/RNBQKB1R b KQkq - 0 3
e8f7
272
[ { "uci": "e8f7", "prob": 0.9868844747543335, "cp": 272, "eval_type": "cp", "rank": 1, "pv": [ "e8f7", "e2e4", "e7e5", "f1c4", "c8e6", "c4e6", "f7e6", "d2d4" ] }, { "uci": "d8d7", "prob": 0.007987569086253643, "cp": -306, ...
12
8
120
multipv_topk
31
opening
0
5
exp190_phase_deep
2026-07-10T17:22:13.003770+00:00
2
578
0.087823
0
null
book_playout
8/2R5/1K6/3k4/1R6/8/8/8 b - - 0 1
d5e5
-20,000
[ { "uci": "d5e5", "prob": 1, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "d5e5", "b6b5", "e5f5", "c7f7", "f5e6", "f7f1", "e6e7", "b4b3" ] }, { "uci": "d5e6", "prob": 0, "cp": -99991, "eval_type": "mate", "rank...
16
3
120
multipv_topk
3
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:13.000359+00:00
0
79,991
-0
-7
null
endgame_template
8/8/6K1/8/8/8/7P/7k b - - 0 1
h1h2
0
[ { "uci": "h1h2", "prob": 1, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "h1h2", "g6h6", "h2h3", "h6h5", "h3g3", "h5g5", "g3f3", "g5f5" ] }, { "uci": "h1g2", "prob": 0, "cp": -20000, "eval_type": "cp", "rank": 2, ...
16
3
120
multipv_topk
3
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:13.006897+00:00
1
20,000
-0
0
null
endgame_template
8/8/3RK3/8/1p6/8/8/2k5 w - - 0 1
d6b6
20,000
[ { "uci": "d6b6", "prob": 1, "cp": 20000, "eval_type": "cp", "rank": 1, "pv": [ "d6b6", "c1c2", "b6b4", "c2c3", "b4h4", "c3b3", "h4h5", "b3c3" ] }, { "uci": "d6d3", "prob": 0, "cp": 0, "eval_type": "cp", "rank": 2, ...
15
8
120
multipv_topk
17
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:13.106245+00:00
2
20,000
-0
0
null
endgame_template
r1b1k1nr/p1pn1ppp/1p6/4p3/4P2q/5P1P/P1P3P1/RNB1KBNR w KQkq - 1 7
g2g3
-621
[ { "uci": "g2g3", "prob": 0.33343419432640076, "cp": -621, "eval_type": "cp", "rank": 1, "pv": [ "g2g3", "h4g3", "e1d1", "g3g6", "c1e3", "e8d8", "d1e1", "f7f6" ] }, { "uci": "e1d1", "prob": 0.3225029408931732, "cp": -625, ...
12
4
120
multipv_topk
4
opening
0
14
exp190_phase_deep
2026-07-10T17:22:13.200054+00:00
0
4
1.325292
0
null
book_playout
rnb2knr/pp1p1ppp/4p3/8/4P3/4P2P/P1PP2P1/R2QKBNR w KQ - 0 8
g1f3
722
[ { "uci": "g1f3", "prob": 0.1724686324596405, "cp": 722, "eval_type": "cp", "rank": 1, "pv": [ "g1f3", "g8f6", "f1d3", "f8e8", "e1g1", "f6h5", "a1b1", "b7b6" ] }, { "uci": "f1d3", "prob": 0.13431870937347412, "cp": 692, "...
11
8
120
multipv_topk
28
opening
0
16
exp190_phase_deep
2026-07-10T17:22:13.201376+00:00
2
30
2.064565
0
null
book_playout
rn2kbnr/p1p1pppp/8/8/8/1P6/P2PbPPP/RNBK1BNR w kq - 3 8
f1e2
545
[ { "uci": "f1e2", "prob": 0.4070791006088257, "cp": 545, "eval_type": "cp", "rank": 1, "pv": [ "f1e2", "e7e5", "c1b2", "b8c6", "e2b5", "e8c8", "b5c6", "g8f6" ] }, { "uci": "d1e2", "prob": 0.3066399395465851, "cp": 511, "e...
12
5
120
multipv_topk
5
opening
0
16
exp190_phase_deep
2026-07-10T17:22:13.199859+00:00
2
34
1.108478
0
null
book_playout
rq3bn1/pppkpp2/n5pr/3p3p/3P1P2/2P5/PP1NPKPP/R1B2BNR b - - 2 9
c7c6
549
[ { "uci": "c7c6", "prob": 0.14479094743728638, "cp": 549, "eval_type": "cp", "rank": 1, "pv": [ "c7c6", "e2e4", "a6c7", "e4e5", "d7e8", "f1d3", "c7e6" ] }, { "uci": "g8f6", "prob": 0.13545295596122742, "cp": 541, "eval_type": "...
13
8
120
multipv_topk
25
opening
0
17
exp190_phase_deep
2026-07-10T17:22:13.501135+00:00
2
8
2.074388
0
null
book_playout
rnb1kb1r/pppp2pp/8/5p2/8/1P6/P1PPqPPP/RNB1K1NR w KQkq - 0 7
g1e2
-6
[ { "uci": "g1e2", "prob": 0.6066693663597107, "cp": -6, "eval_type": "cp", "rank": 1, "pv": [ "g1e2", "b7b6", "c1a3", "d7d6", "e1g1", "b8c6", "c2c4" ] }, { "uci": "e1e2", "prob": 0.3933306634426117, "cp": -58, "eval_type": "cp"...
12
2
120
multipv_topk
2
opening
0
14
exp190_phase_deep
2026-07-10T17:22:13.503453+00:00
1
52
0.670215
0
null
book_playout
r2qkbnr/p1pp1ppp/4p3/8/4P3/7N/1PPP1PPP/1NBQKR2 w kq - 0 7
h3f4
-222
[ { "uci": "h3f4", "prob": 0.13186568021774292, "cp": -222, "eval_type": "cp", "rank": 1, "pv": [ "h3f4", "c7c6", "f1h1", "d7d5", "b1c3", "f8d6" ] }, { "uci": "d1f3", "prob": 0.13186568021774292, "cp": -222, "eval_type": "cp", "ra...
11
8
120
multipv_topk
23
opening
0
14
exp190_phase_deep
2026-07-10T17:22:13.699251+00:00
0
0
2.078743
0
null
book_playout
rn2kbn1/ppq1pppr/3p4/2p5/4P3/8/PPPP1PPP/RNBQK2R w KQq - 0 7
c2c3
-398
[ { "uci": "c2c3", "prob": 0.13848449289798737, "cp": -398, "eval_type": "cp", "rank": 1, "pv": [ "c2c3", "d6d5", "e4d5", "c7e5", "d1e2", "e5d5", "e1g1", "b8c6" ] }, { "uci": "f2f4", "prob": 0.13506528735160828, "cp": -401, ...
13
8
120
multipv_topk
26
opening
0
14
exp190_phase_deep
2026-07-10T17:22:14.110001+00:00
0
3
2.072811
0
null
book_playout
rn1q1bnr/p1p1kppp/1p1pp3/1b6/2P1P3/5P1P/PP1PK1P1/RNBQ2NR b - - 0 8
b5c4
472
[ { "uci": "b5c4", "prob": 0.2500903904438019, "cp": 472, "eval_type": "cp", "rank": 1, "pv": [ "b5c4", "d2d3", "c4a6", "e2f2", "d6d5", "e4e5", "e7e8", "b1c3" ] }, { "uci": "b5a6", "prob": 0.23396126925945282, "cp": 464, "...
13
8
120
multipv_topk
29
opening
0
15
exp190_phase_deep
2026-07-10T17:22:14.203981+00:00
2
8
1.733038
0
null
book_playout
rnbqkbn1/ppppppp1/8/8/6P1/8/P1PP1P1P/RNB1K1NR b q - 0 7
b7b5
706
[ { "uci": "b7b5", "prob": 0.14359724521636963, "cp": 706, "eval_type": "cp", "rank": 1, "pv": [ "b7b5", "g4g5", "c8b7", "g5g6", "f7g6", "g1e2", "b7h1" ] }, { "uci": "d7d5", "prob": 0.13433623313903809, "cp": 698, "eval_type": "...
13
8
120
multipv_topk
18
opening
0
13
exp190_phase_deep
2026-07-10T17:22:14.205131+00:00
2
8
2.075423
0
null
book_playout
8/b7/8/8/5k2/3K2B1/3P4/8 b - - 0 1
f4f5
0
[ { "uci": "f4f5", "prob": 0.20000000298023224, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "f4f5", "g3f2", "a7b8", "d3d4", "b8d6", "d4c3", "d6b8", "c3c4" ] }, { "uci": "f4g3", "prob": 0.20000000298023224, "cp": 0, "eva...
16
5
120
multipv_topk
5
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:14.307114+00:00
1
0
1.609438
0
null
endgame_template
4k3/8/2r4K/3R3P/8/8/8/8 w - - 0 1
h6g7
0
[ { "uci": "h6g7", "prob": 0.3333333432674408, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "h6g7", "c6c7", "g7g8", "e8e7", "d5f5", "e7e6", "f5f3", "c7c2" ] }, { "uci": "h6h7", "prob": 0.3333333432674408, "cp": 0, "eval_...
14
4
120
multipv_topk
4
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:14.301635+00:00
1
0
1.098612
0
null
endgame_template
8/1K6/8/4b1P1/1B6/5k2/8/8 b - - 0 1
f3e4
0
[ { "uci": "f3e4", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "f3e4", "b4e7", "e4f5", "e7f6", "f5g6", "b7c6", "e5f4", "c6d5" ] }, { "uci": "f3g4", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
15
8
120
multipv_topk
21
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:14.401989+00:00
1
0
2.079442
0
null
endgame_template
r1bk2nr/pp1p1p1p/2p3p1/8/4P1PP/8/P2P1P2/1R1QK1NR w K - 0 11
d1b3
688
[ { "uci": "d1b3", "prob": 0.1542748063802719, "cp": 688, "eval_type": "cp", "rank": 1, "pv": [ "d1b3", "g8e7", "g1f3", "d7d6", "f3g5", "c8g4", "f2f3" ] }, { "uci": "d1a4", "prob": 0.13959363102912903, "cp": 676, "eval_type": "c...
13
8
120
multipv_topk
30
opening
0
22
exp190_phase_deep
2026-07-10T17:22:14.499300+00:00
2
12
2.071045
0
null
book_playout
8/2K5/1R6/6n1/8/5k2/8/8 w - - 0 1
b6b3
0
[ { "uci": "b6b3", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "b6b3", "f3e4", "b3e3", "e4f4", "e3f3", "f4g4", "f3f4", "g4h5" ] }, { "uci": "c7d6", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
14
8
120
multipv_topk
21
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:14.500320+00:00
1
0
2.079442
0
null
endgame_template
6R1/6k1/8/2K5/8/2b5/8/8 b - - 0 1
g7f7
0
[ { "uci": "g7f7", "prob": 0.20000000298023224, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "g7f7", "c5d5", "f7f6", "d5e4", "f6e6", "g8g5", "c3f6" ] }, { "uci": "g7f6", "prob": 0.20000000298023224, "cp": 0, "eval_type": "cp",...
14
5
120
multipv_topk
5
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:14.799574+00:00
1
0
1.609438
0
null
endgame_template
6R1/2P5/8/1k4P1/8/7K/8/8 b - - 0 1
b5c6
-99,993
[ { "uci": "b5c6", "prob": 0.12709172070026398, "cp": -99993, "eval_type": "mate", "rank": 1, "pv": [ "b5c6", "c7c8q", "c6d6", "g8d8", "d6e5", "c8c3", "e5f5", "c3f6" ] }, { "uci": "b5c5", "prob": 0.12604112923145294, "cp": -99...
18
8
120
multipv_topk
8
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:14.901392+00:00
0
1
2.07939
-3
null
endgame_template
7B/8/8/8/1k1P4/4b3/8/5K2 w - - 0 1
f1e2
0
[ { "uci": "f1e2", "prob": 0.1428571492433548, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "f1e2", "e3d4", "e2d2", "b4b5", "d2d1", "b5c4", "d1e2" ] }, { "uci": "d4d5", "prob": 0.1428571492433548, "cp": 0, "eval_type": "cp", ...
16
7
120
multipv_topk
7
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:15.003456+00:00
1
0
1.94591
0
null
endgame_template
5K2/6R1/8/8/8/5P2/5P2/4k3 b - - 0 1
e1f2
-20,000
[ { "uci": "e1f2", "prob": 0.20000000298023224, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "e1f2", "f3f4", "f2e3", "f4f5", "e3e4", "f5f6", "e4f5", "f8e7" ] }, { "uci": "e1f1", "prob": 0.20000000298023224, "cp": -20000...
17
5
120
multipv_topk
5
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:15.004761+00:00
0
0
1.609438
0
null
endgame_template
8/8/8/8/K7/4Q3/6k1/8 w - - 0 1
a4b5
99,993
[ { "uci": "a4b5", "prob": 0.12695874273777008, "cp": 99993, "eval_type": "mate", "rank": 1, "pv": [ "a4b5", "g2f1", "b5c4", "f1g2", "c4d3", "g2h2", "d3e2", "h2g2" ] }, { "uci": "a4b4", "prob": 0.12695874273777008, "cp": 99993...
17
8
120
multipv_topk
30
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:15.097236+00:00
2
0
2.079342
11
null
endgame_template
rnb1kbnr/pp1ppppp/8/q1P5/8/2P5/PP2PPPP/RNBQKBNR b KQkq - 0 3
a5c5
-59
[ { "uci": "a5c5", "prob": 0.1969003528356552, "cp": -59, "eval_type": "cp", "rank": 1, "pv": [ "a5c5", "e2e4", "g8f6", "c1e3", "c5c6", "e4e5", "f6d5", "e3d4" ] }, { "uci": "g8f6", "prob": 0.12765923142433167, "cp": -111, ...
11
8
120
multipv_topk
29
opening
0
5
exp190_phase_deep
2026-07-10T17:22:15.100768+00:00
1
52
2.054791
0
null
book_playout
8/1P1kq3/8/8/8/4Q3/2K2P2/8 w - - 0 1
e3e7
19,999
[ { "uci": "e3e7", "prob": 0.13214102387428284, "cp": 19999, "eval_type": "cp", "rank": 1, "pv": [ "e3e7", "d7e7", "b7b8q", "e7f7", "f2f3", "f7e6", "f3f4", "e6f5" ] }, { "uci": "b7b8n", "prob": 0.1299554705619812, "cp": 19997,...
18
8
120
multipv_topk
36
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:15.306599+00:00
2
2
2.07874
0
null
endgame_template
2k5/8/7R/8/8/1P3K2/8/r7 b - - 0 1
a1b1
0
[ { "uci": "a1b1", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "a1b1", "f3e3", "b1b3", "e3e2", "c8c7", "h6h4", "b3b6", "h4h7" ] }, { "uci": "c8b8", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
14
8
120
multipv_topk
19
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:15.398337+00:00
1
0
2.079442
0
null
endgame_template
rnbqkb1r/ppppp1pp/7B/5p2/3P4/5N2/PPP1PPPP/RN1QKB1R b KQkq - 0 3
g7h6
-139
[ { "uci": "g7h6", "prob": 0.7462069392204285, "cp": -139, "eval_type": "cp", "rank": 1, "pv": [ "g7h6", "e2e4", "f8g7", "f1c4", "e7e6", "e4f5", "d7d5", "c4d3" ] }, { "uci": "d7d6", "prob": 0.04280561953783035, "cp": -482, ...
14
8
120
multipv_topk
18
opening
0
5
exp190_phase_deep
2026-07-10T17:22:15.408871+00:00
0
343
1.058335
0
null
book_playout
2K2B2/8/8/8/8/8/7k/2r1R3 w - - 0 1
e1c1
20,000
[ { "uci": "e1c1", "prob": 1, "cp": 20000, "eval_type": "cp", "rank": 1, "pv": [ "e1c1", "h2g3", "f8d6", "g3f2", "c8c7", "f2e2", "c7c6", "e2d2" ] }, { "uci": "c8b7", "prob": 0, "cp": 0, "eval_type": "cp", "rank": 2, ...
17
6
120
multipv_topk
6
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:15.899200+00:00
2
20,000
-0
0
null
endgame_template
8/8/2K4k/3R4/8/8/8/8 w - - 0 1
c6d6
99,992
[ { "uci": "c6d6", "prob": 0.1280265748500824, "cp": 99992, "eval_type": "mate", "rank": 1, "pv": [ "c6d6", "h6g7", "d6e7", "g7g6", "d5c5", "g6g7", "c5g5", "g7h6" ] }, { "uci": "c6d7", "prob": 0.12486254423856735, "cp": 99989,...
15
8
120
multipv_topk
21
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:16.200054+00:00
2
3
2.079394
12
null
endgame_template
rnb2bnr/pppp1kpp/4p3/8/P3P3/8/1PPP1KPP/RNB2BNR b - - 0 5
g8f6
2
[ { "uci": "g8f6", "prob": 0.15152810513973236, "cp": 2, "eval_type": "cp", "rank": 1, "pv": [ "g8f6", "d2d3", "b8c6", "g1f3", "d7d5", "b1c3", "c6b4", "c1f4" ] }, { "uci": "b8c6", "prob": 0.15152810513973236, "cp": 2, "eva...
11
8
120
multipv_topk
27
opening
0
9
exp190_phase_deep
2026-07-10T17:22:16.398234+00:00
1
0
2.06554
0
null
book_playout
8/6Q1/8/8/4kp2/8/8/5K2 b - - 0 1
f4f3
-20,000
[ { "uci": "f4f3", "prob": 0.20000000298023224, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "f4f3", "f1f2", "e4d3", "g7e5", "d3c4", "e5e3", "c4b4", "e3d4" ] }, { "uci": "e4d5", "prob": 0.20000000298023224, "cp": -20000...
15
6
120
multipv_topk
6
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:16.407945+00:00
0
0
1.609438
-7
null
endgame_template
8/8/8/1kP5/8/8/1K6/8 b - - 0 1
b5c6
0
[ { "uci": "b5c6", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "b5c6", "b2b3", "c6c5", "b3c3", "c5d5", "c3d3", "d5e5", "d3c4" ] }, { "uci": "b5c5", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 2, ...
16
7
120
multipv_topk
7
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:16.515708+00:00
1
0
1.386294
0
null
endgame_template
8/8/2q5/8/8/4Q3/k1P1K3/8 b - - 0 1
c6c2
0
[ { "uci": "c6c2", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "c6c2", "e3d2", "c2d2", "e2d2", "a2b3", "d2d3", "b3b4", "d3d4" ] }, { "uci": "a2b2", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
17
8
120
multipv_topk
27
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:16.607337+00:00
1
0
2.079442
0
null
endgame_template
8/8/8/k1K5/4n3/8/6R1/8 w - - 0 1
c5d4
0
[ { "uci": "c5d4", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "c5d4", "e4d6", "g2g6", "d6b5", "d4c4", "b5a3", "c4b3", "a3b5" ] }, { "uci": "c5d5", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 2, ...
16
4
120
multipv_topk
4
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:16.798162+00:00
1
0
1.386294
0
null
endgame_template
8/8/8/P4K2/8/8/8/1k6 w - - 0 1
f5g5
20,000
[ { "uci": "f5g5", "prob": 0.125, "cp": 20000, "eval_type": "cp", "rank": 1, "pv": [ "f5g5", "b1c2", "a5a6", "c2c3", "g5f6", "c3c4", "f6e5", "c4b4" ] }, { "uci": "f5e4", "prob": 0.125, "cp": 20000, "eval_type": "cp", "...
16
8
120
multipv_topk
9
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:16.812201+00:00
2
0
2.079442
0
null
endgame_template
8/8/1k1R4/8/8/8/8/6K1 b - - 0 1
b6b5
-20,000
[ { "uci": "b6b5", "prob": 0.1666666716337204, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "b6b5", "g1f1", "b5c5", "d6d2", "c5c4", "f1e2", "c4c3", "e2d1" ] }, { "uci": "b6c5", "prob": 0.1666666716337204, "cp": -20000, ...
17
6
120
multipv_topk
6
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:16.910447+00:00
0
0
1.791759
0
null
endgame_template
1n6/1k6/8/8/2K5/8/R7/8 w - - 0 1
c4c5
0
[ { "uci": "c4c5", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "c4c5", "b8a6", "c5d6", "b7b6", "a2b2", "b6a5", "d6d5", "a6b4" ] }, { "uci": "a2b2", "prob": 0.125, "cp": 0, "eval_type": "cp", "rank": 2...
17
8
120
multipv_topk
22
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:16.915319+00:00
1
0
2.079442
0
null
endgame_template
r1b1kbnr/pp1ppp1p/6p1/8/P1PpP3/8/1P1P1PPP/R1B1KBNR w KQkq - 0 8
a4a5
52
[ { "uci": "a4a5", "prob": 0.14166194200515747, "cp": 52, "eval_type": "cp", "rank": 1, "pv": [ "a4a5", "e7e5", "f2f4", "g8f6", "d2d3", "f8b4", "c1d2", "b4d2" ] }, { "uci": "f2f4", "prob": 0.14166194200515747, "cp": 52, "e...
12
8
120
multipv_topk
22
opening
0
16
exp190_phase_deep
2026-07-10T17:22:17.108199+00:00
1
0
2.072366
0
null
book_playout
8/7Q/6K1/6p1/8/2k5/8/8 w - - 0 1
h7h8
99,987
[ { "uci": "h7h8", "prob": 0.5020751953125, "cp": 99987, "eval_type": "mate", "rank": 1, "pv": [ "h7h8", "c3c4", "g6g5", "c4d5", "g5f5", "d5c4", "h8e5", "c4b4" ] }, { "uci": "h7g7", "prob": 0.4979248046875, "cp": 99986, "e...
16
8
120
multipv_topk
22
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:17.116905+00:00
2
1
0.693139
14
null
endgame_template
3R4/7P/8/8/3K2k1/r7/8/8 w - - 0 1
h7h8q
20,000
[ { "uci": "h7h8q", "prob": 0.125, "cp": 20000, "eval_type": "cp", "rank": 1, "pv": [ "h7h8q", "a3a4", "d4d5", "a4f4", "d8g8", "g4f3", "h8c3", "f3f2" ] }, { "uci": "d8g8", "prob": 0.125, "cp": 20000, "eval_type": "cp", ...
15
8
120
multipv_topk
19
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:17.298032+00:00
2
0
2.079442
0
null
endgame_template
8/7k/8/4P3/P7/8/2K5/8 w - - 0 1
c2b3
20,000
[ { "uci": "c2b3", "prob": 0.125, "cp": 20000, "eval_type": "cp", "rank": 1, "pv": [ "c2b3", "h7g7", "b3c4", "g7f7", "c4d4", "f7e7", "a4a5", "e7d7" ] }, { "uci": "c2d3", "prob": 0.125, "cp": 20000, "eval_type": "cp", "...
16
8
120
multipv_topk
10
endgame
2
2
exp190_phase_deep
2026-07-10T17:22:17.598460+00:00
2
0
2.079442
0
null
endgame_template
1K6/8/4P3/8/8/8/1k6/8 b - - 0 1
b2c3
-20,000
[ { "uci": "b2c3", "prob": 0.125, "cp": -20000, "eval_type": "cp", "rank": 1, "pv": [ "b2c3", "b8c7", "c3d3", "c7c6", "d3d4", "c6d6", "d4e4", "e6e7" ] }, { "uci": "b2c1", "prob": 0.125, "cp": -20000, "eval_type": "cp", ...
16
8
120
multipv_topk
8
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:17.709092+00:00
0
0
2.079442
0
null
endgame_template
8/8/8/8/1r6/k2R3K/7B/8 b - - 0 1
a3b2
0
[ { "uci": "a3b2", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "a3b2", "h2e5", "b2c2", "e5f6", "b4b3", "h3g4", "b3d3", "g4f5" ] }, { "uci": "a3a2", "prob": 0.25, "cp": 0, "eval_type": "cp", "rank": 2, ...
15
4
120
multipv_topk
4
endgame
2
1
exp190_phase_deep
2026-07-10T17:22:17.720924+00:00
1
0
1.386294
0
null
endgame_template
5rk1/5ppp/4p3/8/8/4PN2/5PPP/6K1 w - - 0 1
f3d2
-297
[ { "uci": "f3d2", "prob": 0.13740341365337372, "cp": -297, "eval_type": "cp", "rank": 1, "pv": [ "f3d2", "f8b8", "g2g4", "b8b4", "h2h3", "f7f5", "g4f5", "e6f5" ] }, { "uci": "g2g4", "prob": 0.13070213794708252, "cp": -303, ...
13
8
120
multipv_topk
13
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:29.916335+00:00
0
6
2.078205
0
avewright/chess-positions-lichess-sf
hf
8/4k3/5ppp/8/2nP2P1/4P2P/r2N1P2/3RK3 b - - 0 1
c4b2
-91
[ { "uci": "c4b2", "prob": 0.5489635467529297, "cp": -91, "eval_type": "cp", "rank": 1, "pv": [ "c4b2", "d1b1", "b2d3", "e1e2", "d3f2", "b1b7", "e7e6", "b7b6" ] }, { "uci": "c4d6", "prob": 0.1376478672027588, "cp": -257, "...
13
8
120
multipv_topk
28
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:29.918206+00:00
1
166
1.497526
0
avewright/chess-positions-lichess-sf
hf
8/5ppk/2pNp2p/2P1P3/5PP1/8/r6r/1RK5 w - - 0 1
b1b2
-99,990
[ { "uci": "b1b2", "prob": 0.1334378570318222, "cp": -99990, "eval_type": "mate", "rank": 1, "pv": [ "b1b2", "h2b2", "d6e4", "b2g2", "e4c3", "a2c2", "c1d1", "c2c3" ] }, { "uci": "d6f7", "prob": 0.12379459291696548, "cp": -9999...
15
8
120
multipv_topk
19
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:30.120491+00:00
0
9
2.079122
-1
avewright/chess-positions-lichess-sf
hf
8/1p6/1rb1k3/4P2R/8/5p1P/5PP1/4R1K1 w - - 0 1
h5h6
474
[ { "uci": "h5h6", "prob": 0.1802649050951004, "cp": 474, "eval_type": "cp", "rank": 1, "pv": [ "h5h6", "e6e7", "g2g4", "b6b2", "e1c1", "c6d7", "g1h2", "b2f2" ] }, { "uci": "g2g4", "prob": 0.17290817201137543, "cp": 469, "...
14
8
120
multipv_topk
21
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:30.804620+00:00
2
5
2.032904
0
avewright/chess-positions-lichess-sf
hf
2r2bk1/6pp/R7/3b1p2/1pnB2P1/7K/7P/3R4 w - - 0 1
d4g7
-379
[ { "uci": "d4g7", "prob": 0.2280016839504242, "cp": -379, "eval_type": "cp", "rank": 1, "pv": [ "d4g7", "c4e3", "g7f8", "e3d1", "f8b4", "d1f2", "h3g3", "f2g4" ] }, { "uci": "g4f5", "prob": 0.16067004203796387, "cp": -421, ...
14
8
120
multipv_topk
39
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:31.297453+00:00
0
42
2.021893
0
avewright/chess-positions-lichess-sf
hf
6B1/p5p1/1p5p/4k2P/6P1/PPn1K3/8/8 b - - 0 1
b6b5
2
[ { "uci": "b6b5", "prob": 0.126569002866745, "cp": 2, "eval_type": "cp", "rank": 1, "pv": [ "b6b5", "g8f7", "a7a5", "b3b4", "a5b4", "a3b4", "c3d5", "f7d5" ] }, { "uci": "c3d1", "prob": 0.126569002866745, "cp": 2, "eval_ty...
14
8
120
multipv_topk
15
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:31.302139+00:00
1
0
2.079415
0
avewright/chess-positions-lichess-sf
hf
2b5/4R3/5Pk1/8/5pPB/7P/ppp5/4K2R w K - 0 1
e7g7
99,998
[ { "uci": "e7g7", "prob": 0.337046355009079, "cp": 99998, "eval_type": "mate", "rank": 1, "pv": [ "e7g7", "g6h6", "h4g5" ] }, { "uci": "e1g1", "prob": 0.3314768075942993, "cp": 99996, "eval_type": "mate", "rank": 2, "pv": [ "e1g1", ...
12
8
120
multipv_topk
26
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:31.897167+00:00
2
2
1.098581
4
avewright/chess-positions-lichess-sf
hf
7k/1p4p1/3BB2p/3p3P/1P2b2K/p2nQ3/6q1/8 b - - 0 1
a3a2
604
[ { "uci": "a3a2", "prob": 0.19837327301502228, "cp": 604, "eval_type": "cp", "rank": 1, "pv": [ "a3a2", "b4b5", "h8h7", "e6f7", "a2a1q", "f7g6", "e4g6" ] }, { "uci": "g2b2", "prob": 0.14818833768367767, "cp": 569, "eval_type": ...
12
8
120
multipv_topk
35
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:31.901425+00:00
2
35
2.041711
0
avewright/chess-positions-lichess-sf
hf
6R1/5p2/2p3kp/2PbB1p1/4p2P/4P3/6K1/8 b - - 0 1
g6h5
-406
[ { "uci": "g6h5", "prob": 0.474852591753006, "cp": -406, "eval_type": "cp", "rank": 1, "pv": [ "g6h5", "g8h8", "d5e6", "h4g5", "h5g4", "g2f2", "h6g5", "h8h6" ] }, { "uci": "g6f5", "prob": 0.44054147601127625, "cp": -415, ...
13
3
120
multipv_topk
3
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:32.000094+00:00
0
9
0.923737
0
avewright/chess-positions-lichess-sf
hf
3k4/4b1p1/3p4/P7/8/3r3P/1q1N1P2/4K1R1 w - - 0 1
e1f1
-792
[ { "uci": "e1f1", "prob": 1, "cp": -792, "eval_type": "cp", "rank": 1, "pv": [ "e1f1", "b2d2", "f1g2", "d2g5", "g2h2", "g5f4", "g1g3", "f4f2" ] }, { "uci": "g1g7", "prob": 0, "cp": -99991, "eval_type": "mate", "rank":...
14
8
120
multipv_topk
21
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:32.400140+00:00
0
99,199
-0
-5
avewright/chess-positions-lichess-sf
hf
3r2k1/p4rbp/1p3p2/8/3Pq3/P7/1P4PB/K2Q3R w - - 0 1
d1c1
-501
[ { "uci": "d1c1", "prob": 0.1711248904466629, "cp": -501, "eval_type": "cp", "rank": 1, "pv": [ "d1c1", "h7h5", "h1e1", "e4d4", "h2c7", "d8c8", "c1c2", "f7c7" ] }, { "uci": "h1e1", "prob": 0.15876004099845886, "cp": -510, ...
13
8
120
multipv_topk
31
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:32.998030+00:00
0
9
2.04499
0
avewright/chess-positions-lichess-sf
hf
3r4/4bpk1/p5p1/p5P1/b2PNPN1/6K1/1P6/7R b - - 0 1
a4c6
85
[ { "uci": "a4c6", "prob": 0.3059397339820862, "cp": 85, "eval_type": "cp", "rank": 1, "pv": [ "a4c6", "g4f6", "e7f6", "d4d5", "d8d5", "g5f6", "g7g8", "e4f2" ] }, { "uci": "d8d4", "prob": 0.2722502052783966, "cp": 71, "eva...
12
8
120
multipv_topk
29
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:33.009037+00:00
1
14
1.834539
0
avewright/chess-positions-lichess-sf
hf
6k1/1p4p1/7p/1P1p4/4b2P/6K1/5Q2/q1B5 b - - 0 1
a1c1
569
[ { "uci": "a1c1", "prob": 0.6261393427848816, "cp": 569, "eval_type": "cp", "rank": 1, "pv": [ "a1c1", "g3g4", "c1c8", "g4g3", "c8c7", "g3g4", "c7d7", "g4g3" ] }, { "uci": "a1c3", "prob": 0.1035001128911972, "cp": 353, "e...
13
8
120
multipv_topk
30
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:33.199130+00:00
2
216
1.333729
0
avewright/chess-positions-lichess-sf
hf
4r1k1/pp6/6qp/2b5/4p3/6PQ/PP4K1/4R3 w - - 0 1
b2b4
-455
[ { "uci": "b2b4", "prob": 0.15091370046138763, "cp": -455, "eval_type": "cp", "rank": 1, "pv": [ "b2b4", "c5f8", "e1c1", "e4e3", "c1c8", "e8c8", "h3c8" ] }, { "uci": "h3d7", "prob": 0.14596617221832275, "cp": -459, "eval_type":...
13
8
120
multipv_topk
28
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:33.498299+00:00
0
4
2.070926
0
avewright/chess-positions-lichess-sf
hf
6k1/1p4p1/6qp/3p4/1PbQ1B1P/6K1/p7/8 w - - 0 1
g3h2
-421
[ { "uci": "g3h2", "prob": 0.8261314630508423, "cp": -421, "eval_type": "cp", "rank": 1, "pv": [ "g3h2", "g6e4", "f4e5", "c4f1", "d4e4", "d5e4", "e5a1", "f1b5" ] }, { "uci": "f4g5", "prob": 0.08421903103590012, "cp": -695, ...
14
5
120
multipv_topk
5
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:33.500095+00:00
0
274
0.64068
-2
avewright/chess-positions-lichess-sf
hf
r5k1/1b3ppp/4p3/1p1nP3/1B1p4/8/1PB2PPP/1N2R1K1 b - - 0 1
d5b4
214
[ { "uci": "d5b4", "prob": 0.7594895958900452, "cp": 214, "eval_type": "cp", "rank": 1, "pv": [ "d5b4", "c2b3", "b4d3", "e1d1", "a8a1", "b3c2", "d3e5", "d1d4" ] }, { "uci": "d4d3", "prob": 0.13532057404518127, "cp": 7, "ev...
13
8
120
multipv_topk
31
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:33.600520+00:00
2
207
0.904577
0
avewright/chess-positions-lichess-sf
hf
8/Bpkn4/2p1p3/4Pp2/PP6/1KP5/4r3/6R1 b - - 0 1
e2e5
86
[ { "uci": "e2e5", "prob": 0.1682342141866684, "cp": 86, "eval_type": "cp", "rank": 1, "pv": [ "e2e5", "g1g7", "c7d6", "b3c2", "e5e2", "c2d3", "e2a2", "a4a5" ] }, { "uci": "c6c5", "prob": 0.14601224660873413, "cp": 69, "ev...
12
8
120
multipv_topk
23
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:33.700871+00:00
1
17
2.062551
0
avewright/chess-positions-lichess-sf
hf
2r2r2/1p5k/p2ppq2/4nP1P/5Q2/4NP1B/PPP5/2KR3R b - - 0 1
c8c6
-451
[ { "uci": "c8c6", "prob": 0.20438800752162933, "cp": -451, "eval_type": "cp", "rank": 1, "pv": [ "c8c6", "h3f1", "d6d5", "c1b1", "f8c8", "f1d3", "c6b6", "f5e6" ] }, { "uci": "b7b5", "prob": 0.14645043015480042, "cp": -491, ...
13
8
120
multipv_topk
41
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:33.604383+00:00
0
40
2.039375
0
avewright/chess-positions-lichess-sf
hf
6k1/1p4p1/7p/3pK3/1P2b2P/2qB2Q1/8/8 w - - 0 1
e5e6
-526
[ { "uci": "e5e6", "prob": 0.43629348278045654, "cp": -526, "eval_type": "cp", "rank": 1, "pv": [ "e5e6", "c3d3", "g3b8", "g8h7", "b8d8", "d3h3", "e6d6", "h3g3" ] }, { "uci": "e5d6", "prob": 0.3818323016166687, "cp": -542, ...
14
3
120
multipv_topk
3
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:33.802024+00:00
0
16
1.039491
0
avewright/chess-positions-lichess-sf
hf
3Qkb1r/5p1p/2pp1np1/8/4P3/5P2/PB3P1P/5RK1 b k - 0 1
e8d8
-594
[ { "uci": "e8d8", "prob": 1, "cp": -594, "eval_type": "cp", "rank": 1, "pv": [ "e8d8", "b2f6", "d8c7", "f6h8", "f8h6", "h8c3", "c7b7", "f1b1" ] } ]
16
1
120
multipv_topk
1
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:34.100766+00:00
0
0
-0
0
avewright/chess-positions-lichess-sf
hf
6k1/1p4p1/4Q2p/3pn3/1P2b2P/5q1B/p6K/8 b - - 0 1
g8h7
99,993
[ { "uci": "g8h7", "prob": 1, "cp": 99993, "eval_type": "mate", "rank": 1, "pv": [ "g8h7", "h3f5", "e4f5", "e6f5", "f3f5", "h4h5", "f5f4", "h2g2" ] }, { "uci": "g8h8", "prob": 0, "cp": 1149, "eval_type": "cp", "rank": ...
12
5
120
multipv_topk
5
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:34.101387+00:00
2
98,844
-0
7
avewright/chess-positions-lichess-sf
hf
8/1p1nk2p/p1r2pp1/P1BRp3/2N1P3/1P3P2/4K1PP/8 b - - 0 1
d7c5
68
[ { "uci": "d7c5", "prob": 0.6550944447517395, "cp": 68, "eval_type": "cp", "rank": 1, "pv": [ "d7c5", "c4b6", "c5b3", "d5d7", "e7e6", "d7h7", "b3a5", "b6d5" ] }, { "uci": "c6c5", "prob": 0.328032523393631, "cp": -15, "eva...
13
7
120
multipv_topk
7
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:34.398469+00:00
1
83
0.734207
0
avewright/chess-positions-lichess-sf
hf
2rnk3/p2R4/2P1p1p1/4Pp1p/7P/4P3/P4KP1/8 w - - 0 1
d7g7
-412
[ { "uci": "d7g7", "prob": 0.14426249265670776, "cp": -412, "eval_type": "cp", "rank": 1, "pv": [ "d7g7", "c8c6", "g7g6", "c6c4", "g6g5", "d8f7" ] }, { "uci": "g2g4", "prob": 0.13272790610790253, "cp": -422, "eval_type": "cp", "ra...
14
8
120
multipv_topk
26
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:34.398464+00:00
0
10
2.075877
0
avewright/chess-positions-lichess-sf
hf
3r3k/pp6/2p2Q1p/2P3p1/8/1B4PP/PP2rP2/6K1 b - - 0 1
h8h7
-99,987
[ { "uci": "h8h7", "prob": 1, "cp": -99987, "eval_type": "mate", "rank": 1, "pv": [ "h8h7", "f6d8", "e2e1", "g1h2", "h7g6", "d8g8", "g6f5", "g8f8" ] } ]
14
1
120
multipv_topk
1
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:34.502350+00:00
0
0
-0
-13
avewright/chess-positions-lichess-sf
hf
2qrn2k/p5pp/1p2Rp2/8/8/2P1Q3/P5PP/4R1K1 b - - 0 1
e8c7
-363
[ { "uci": "e8c7", "prob": 0.5355842709541321, "cp": -363, "eval_type": "cp", "rank": 1, "pv": [ "e8c7", "e6e7", "d8g8", "e3d3", "c7a6", "d3e2", "a6c5", "e7e8" ] }, { "uci": "e8d6", "prob": 0.11273329704999924, "cp": -550, ...
12
8
120
multipv_topk
29
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:34.599899+00:00
0
187
1.564041
0
avewright/chess-positions-lichess-sf
hf
8/5ppk/4r3/p6p/PbRB3P/3KP1P1/5P2/8 w - - 0 1
d4c5
346
[ { "uci": "d4c5", "prob": 0.30637285113334656, "cp": 346, "eval_type": "cp", "rank": 1, "pv": [ "d4c5", "b4c5", "c4c5", "h7h6", "c5a5", "e6d6", "d3c3", "d6f6" ] }, { "uci": "d4c3", "prob": 0.15994064509868622, "cp": 268, ...
14
8
120
multipv_topk
23
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:34.603950+00:00
2
78
1.943589
0
avewright/chess-positions-lichess-sf
hf
8/8/1p1p1k2/pB1Pp3/P7/6QP/r6r/2K5 w - - 0 1
g3h4
0
[ { "uci": "g3h4", "prob": 0.24934479594230652, "cp": 0, "eval_type": "cp", "rank": 1, "pv": [ "g3h4", "f6g7", "h4e7", "g7g8", "e7g5", "g8f7", "g5f5", "f7g7" ] }, { "uci": "c1b1", "prob": 0.24934479594230652, "cp": 0, "eva...
14
8
120
multipv_topk
30
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:35.003647+00:00
1
0
1.403783
0
avewright/chess-positions-lichess-sf
hf
2Q5/1p4pk/3B3p/3p4/1Pb4P/p5K1/2q5/8 w - - 0 1
h4h5
-513
[ { "uci": "h4h5", "prob": 0.18806777894496918, "cp": -513, "eval_type": "cp", "rank": 1, "pv": [ "h4h5", "d5d4", "d6e5", "c2d3", "g3h4" ] }, { "uci": "c8g4", "prob": 0.17593874037265778, "cp": -521, "eval_type": "cp", "rank": 2, "p...
14
8
120
multipv_topk
30
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:35.106804+00:00
0
8
2.016405
0
avewright/chess-positions-lichess-sf
hf
1k1r4/1pp2pp1/p1p5/8/4N3/2Pp1Pp1/PP4Qr/R1B1RK2 b - - 0 1
f7f5
-592
[ { "uci": "f7f5", "prob": 0.16397030651569366, "cp": -592, "eval_type": "cp", "rank": 1, "pv": [ "f7f5", "g2g3", "d3d2", "c1d2", "h2h8", "f1g1", "f5e4", "e1e4" ] }, { "uci": "h2h4", "prob": 0.1572786122560501, "cp": -597, ...
13
8
120
multipv_topk
29
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:35.302514+00:00
0
5
2.062004
0
avewright/chess-positions-lichess-sf
hf
4r1k1/3b1ppp/1R2p3/2BpP3/2p2P2/2PQ2P1/7P/6K1 b - - 0 1
c4d3
42
[ { "uci": "c4d3", "prob": 0.9682353138923645, "cp": 42, "eval_type": "cp", "rank": 1, "pv": [ "c4d3", "g1f2", "e8c8", "c5b4", "h7h5", "f2e3", "c8a8", "e3d3" ] }, { "uci": "d7a4", "prob": 0.005805515684187412, "cp": -572, ...
14
8
120
multipv_topk
19
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:35.902434+00:00
1
614
0.202397
0
avewright/chess-positions-lichess-sf
hf
2R1rk2/pQ6/1b4qp/8/8/6P1/PP2p1K1/8 w - - 0 1
c8e8
-505
[ { "uci": "c8e8", "prob": 0.4030071794986725, "cp": -505, "eval_type": "cp", "rank": 1, "pv": [ "c8e8", "g6e8", "b7h7", "e8c6", "g2h2", "e2e1q", "h7h8", "f8e7" ] }, { "uci": "b7f3", "prob": 0.20864225924015045, "cp": -584, ...
13
8
120
multipv_topk
35
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:35.902715+00:00
0
79
1.626914
0
avewright/chess-positions-lichess-sf
hf
6k1/1p4p1/7p/3pB3/1P2b2P/p2nQ1KB/q7/8 b - - 0 1
a2c2
611
[ { "uci": "a2c2", "prob": 0.28309810161590576, "cp": 611, "eval_type": "cp", "rank": 1, "pv": [ "a2c2", "b4b5", "a3a2", "e5d6", "g8h7", "h4h5", "c2c3", "h3g2" ] }, { "uci": "d3e5", "prob": 0.24366477131843567, "cp": 593, ...
15
8
120
multipv_topk
35
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:36.403675+00:00
2
18
1.851926
0
avewright/chess-positions-lichess-sf
hf
7k/p3p1rp/1pB2p2/2p2P2/6PN/1P2b3/1B5P/7K b - - 0 1
g7g4
288
[ { "uci": "g7g4", "prob": 0.25306636095046997, "cp": 288, "eval_type": "cp", "rank": 1, "pv": [ "g7g4", "h4g2", "e3d4", "b2c1", "d4e5", "g2e3", "g4h4", "e3f1" ] }, { "uci": "g7g8", "prob": 0.15869513154029846, "cp": 232, ...
12
8
120
multipv_topk
22
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:36.498374+00:00
2
56
1.976422
0
avewright/chess-positions-lichess-sf
hf
r6r/p3p1k1/1q1nBpp1/1p1P4/5P2/8/PP1Q1P2/2K3RR w - - 0 1
g1g6
99,995
[ { "uci": "g1g6", "prob": 1, "cp": 99995, "eval_type": "mate", "rank": 1, "pv": [ "g1g6", "g7g6", "d2d3", "d6f5", "d3f5", "g6g7", "f5g4", "g7f8" ] }, { "uci": "d2c2", "prob": 0, "cp": 611, "eval_type": "cp", "rank": 2...
14
8
120
multipv_topk
41
middlegame
1
2
exp190_phase_deep
2026-07-10T17:22:36.501825+00:00
2
99,384
-0
5
avewright/chess-positions-lichess-sf
hf
7k/1p4p1/3BB2p/3p4/1P5P/p2n4/6K1/8 b - - 0 1
a3a2
500
[ { "uci": "a3a2", "prob": 0.9602175951004028, "cp": 500, "eval_type": "cp", "rank": 1, "pv": [ "a3a2", "e6f5", "d3e1", "g2f2", "a2a1q", "b4b5", "a1c3", "f2g1" ] }, { "uci": "d3c1", "prob": 0.015520472079515457, "cp": 5, "...
15
8
120
multipv_topk
16
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:36.601834+00:00
2
495
0.224557
0
avewright/chess-positions-lichess-sf
hf
n7/4ppkp/3p2p1/3P4/2pKPP2/1rN5/1PR3PP/8 b - - 0 1
a8b6
-13
[ { "uci": "a8b6", "prob": 0.22940270602703094, "cp": -13, "eval_type": "cp", "rank": 1, "pv": [ "a8b6", "g2g4", "b3b4", "e4e5", "b6d7", "g4g5", "h7h6", "h2h4" ] }, { "uci": "b3b4", "prob": 0.22561101615428925, "cp": -15, ...
13
8
120
multipv_topk
22
middlegame
1
1
exp190_phase_deep
2026-07-10T17:22:36.702819+00:00
1
2
1.974722
0
avewright/chess-positions-lichess-sf
hf
End of preview.

exp190 — Phase-balanced deep MultiPV soft targets

Stockfish 18 MultiPV soft-policy labels with phase quotas so training does not drown in openings. Built for policy-only (no-MCTS) ChessTransformer finetunes such as avewright/chess-transformer-200m-maxelo.

Motivation

Naive HF streaming + shallow MultiPV skews toward openings. Elo without search is decided in middlegame/endgame. This harvest enforces:

Phase Target share Label depth
Opening 22% 10–14
Middlegame 48% 12–16
Endgame 30% 14–18

Contents

Path Description
soft_cache.pt Torch cache ready for exp189-style training
data/*.jsonl Raw labeled positions (FEN + MultiPV soft targets)
status.json Harvest counters at upload time
ARCHITECTURE.md Design notes for stratified training

soft_cache.pt tensors

board_array, turn, castling, ep_square, move_idx, cp, mate, soft_indices, soft_probs, phase, label_depth.

Phase encoding: 0=opening, 1=middlegame, 2=endgame.

How it was generated

  • Engine: Stockfish 18 (x86-64-vnni512), full strength, MultiPV 8
  • FEN sources: HF position streams, book playouts, endgame templates, random walks
  • Deficit-first producer + hard phase gate at writer
  • Syzygy tablebases when available
  • Code: experiments/exp190_phase_deep_harvest.py in avewright/transform

Recommended training use

  1. Mix with shallow volume (exp186-sf-multipv-2m) at ~30–40% deep / 60–70% shallow
  2. Stratify batches by phase (1/3 each) so gradients never bog on openings
  3. Optional depth weight: w = label_depth / mean_depth (clip 0.5–1.5)

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