docs: grade every DEEPEST problem, swap weak unpublished positions, published-by column - #32
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…published by" column Three weaknesses are detected for every position shown: the solution begins with a capture, the side to move is in check in the diagram, and the diagram has no legal last move -- decided exactly for one retraction (quiet moves, uncaptures of any piece, unpromotions with or without capture; en passant not retracted). Ranking, best first: flawless, check only, capture only, both; an illegal diagram is never offered as a replacement. An unpublished showcase position with a weakness is swapped for the best-ranked cleaner unique position of the same material and depth the tablebase offers (`replaced_from` keeps the original FEN); published positions stay, their sibling is chosen the same way. Result: 60 positions replaced; 121 of 234 still carry a weakness because nothing cleaner exists at that depth (33 in check, 20 capture, 66 both, 2 illegal: KQBBvk and KRBBvk, each a double check by queen/rook and bishop that no last move can produce, and each the only unique position at its depth). A remaining weakness is stated in a Note on the card and in the booklet. The index tables gain a "published by" column (`Sheglow (1998)`). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01DFQB6YogM3gaauunTfMuxW
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Summary
replaced_fromkeeps the original); published positions stay, their sibling is chosen the same way. Result: 60 positions replaced; 121 of 234 still carry a weakness because nothing cleaner exists at that depth (33 in check, 20 capture, 66 both, 2 illegal: KQBBvk and KRBBvk, double checks by queen/rook plus bishop that no last move can produce, each the only unique position at its depth). A remaining weakness is stated in a Note on the card and in the booklet.Sheglow (1998),Abdurahmanovic & Becker (2006)).published_problems.py, 12 minutes against~/tb).Test plan
tests/repo/test_published_problems.py(13): first-move capture and check detection; the exact last-move test on an immobile-white construct, its legal variant, opposite check, an uncapture-only case and an unpromotion; ranking and notes; published-by formatting; replacement of a weak entry; illegal candidates skipped on the FEN alone; second run is a no-optests/repo/test_deepest_render.py(88): index column present in both outputs, notes on cards and booklet entries, staleness checks passmake bookletbuilds; note and index pages checked visually;make lintclean🤖 Generated with Claude Code
https://claude.ai/code/session_01DFQB6YogM3gaauunTfMuxW