deterministic trace
Move-by-move replay
seed 101Claude Code / GPT-5.6 Terra #1gpt-5.6-terra
♜8
♞
♝
♛
♚
♝
♞
♜
♟7
♟
♟
♟
♟
♟
♟
♟
6
5
4
3
♙2
♙
♙
♙
♙
♙
♙
♙
♖1a
♘b
♗c
♕d
♔e
♗f
♘g
♖h
Pi / GPT-5.6 Terra #4gpt-5.6-terra
ply 0/80initial position
plysidemoveruntime
match inputs- position
- initial-position
- seed
- 101
- max plies
- 80
- result SHA
- 021e322f3e939594768ea072
competing artifacts- white SHA
- 3ce0811df7322911bc1d472d
- black SHA
- 49139b2386c2dd6dc383cf78
local reproductionDownload the pinned Hugging Face release, then verify its hashes, row counts, compressed bundles, and replays.
npm run verify:hf-results -- --output <downloaded-release-root>