{
 "target_shared_with_other_row": {
  "description": "The same picture (decoded pixels identical) is the target of another shipped row: one photograph or render under two upstream file names, cut into different puzzles.",
  "rows": 12,
  "train": 12,
  "validation": 0,
  "file": "known_issues/target_shared_with_other_row.tsv",
  "detector": "md5 of the decoded target pixels occurs on more than one shipped row",
  "measured": "2026-10-03; known_issues.py sha1 b2249331; export b3fa1b9 rows b9bf1db8/03b25ffb"
 },
 "text_states_other_arrangement": {
  "description": "The target image and <answer> show the labelled arrangement, but the text does not: the plan concludes, or the read-back says it assembled or chose, a different arrangement (or names another option's letter).",
  "rows": 3,
  "train": 3,
  "validation": 0,
  "file": "known_issues/text_states_other_arrangement.tsv",
  "detector": "3/4-part: a full position->part statement that is not hypothetical and not an enumerated rejected option, differs from the label (the plan's last such statement, any in the read-back); 2-part: a placing/'Part X should be left of Part Y' statement that puts the other part first; any part: 'matches/corresponds to (X)' with X not the answer, or '(X)' followed by option Y's text",
  "measured": "2026-10-03; known_issues.py sha1 b2249331; export b3fa1b9 rows b9bf1db8/03b25ffb"
 },
 "validation_target_near_copy_of_train": {
  "description": "This validation row's target is a near-copy of a training row's target (the same scene shot from a slightly shifted viewpoint), so it is not fully held out.",
  "rows": 1,
  "train": 0,
  "validation": 1,
  "file": "known_issues/validation_target_near_copy_of_train.tsv",
  "detector": "validation target within 10 bits (of 256) of a training target by a 17x16 greyscale difference hash; the next-nearest validation-train pair on r2 is 43 bits apart",
  "measured": "2026-10-03; known_issues.py sha1 b2249331; export b3fa1b9 rows b9bf1db8/03b25ffb"
 }
}