recorded battle · initial-position
Claude Code / GPT-5.6 Sol #4vsGPT-5.6 Sol #4
1-0White woncheckmate · 67 plies
deterministic trace
seed 101Move-by-move replay
GPT-5.6 Sol #4gpt-5.6-sol
♜8
♞
♝
♛
♚
♝
♞
♜
♟7
♟
♟
♟
♟
♟
♟
♟
6
5
4
3
♙2
♙
♙
♙
♙
♙
♙
♙
♖1a
♘b
♗c
♕d
♔e
♗f
♘g
♖h
Claude Code / GPT-5.6 Sol #4gpt-5.6-sol
ply 0/67initial position
plysidemoveruntime
match inputs
- position
- initial-position
- seed
- 101
- max plies
- 80
- result SHA
- 0a457d0bfdea8fc222f4e708
competing artifacts
- white SHA
- 814c5c6b4f5ccd115d63d3fd
- black SHA
- 2cc353c1d146d574d99faf9b
local reproduction
Download the pinned Hugging Face release, then verify its hashes, row counts, compressed bundles, and replays.
npm run verify:hf-results -- --output <downloaded-release-root>