claude (blind_chess)
7c18725586
The hand-rolled scoring heuristic lost to a random-move baseline 7-7 in
self-play — far below the spec's >=80% acceptance bar. Swap in a real
chess engine (js-chess-engine, MIT, ~400KB, no native deps) for vanilla
mode at level 2 with randomness=30 to break threefold cycles.
- BrainInput.fen added; driver populates it ONLY in vanilla mode.
Blind mode omits the FEN so the engine path can't smuggle opponent
positions past the view filter.
- CasualBrain in vanilla: convert FEN -> EngineGame -> ai({level: 2});
validate the engine's move is in legalCandidates; fall back to
heuristic on miss.
- Blind mode unchanged (engine isn't useful when only own pieces are
visible — that's Phase 2 Recon's territory).
Self-play vs RandomBrain (100 games each direction, vanilla):
- Casual(W) vs Random(B): W=97%
- Random(W) vs Casual(B): B=96%
Casual-vs-Casual vanilla balanced, ~5-30ms/move. All 54 tests still pass.
Refresh .secrets.baseline (stale) to allow new pnpm-lock.yaml hashes.
34 lines
775 B
JSON
34 lines
775 B
JSON
{
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"name": "@blind-chess/server",
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"version": "0.1.0",
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"private": true,
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"type": "module",
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"main": "dist/server.js",
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"scripts": {
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"build": "tsc -b",
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"dev": "tsx watch src/server.ts",
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"start": "node dist/server.js",
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"test": "vitest run",
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"typecheck": "tsc --noEmit"
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},
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"dependencies": {
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"@blind-chess/shared": "workspace:*",
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"@fastify/static": "^8.0.0",
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"@fastify/websocket": "^11.0.0",
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"chess.js": "^1.4.0",
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"fastify": "^5.2.0",
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"js-chess-engine": "^2.4.6",
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"pino": "^9.5.0",
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"ws": "^8.18.0",
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"zod": "^3.24.0"
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},
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"devDependencies": {
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"@types/node": "^22.10.0",
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"@types/ws": "^8.5.13",
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"pino-pretty": "^11.3.0",
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"tsx": "^4.19.2",
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"typescript": "^5.6.0",
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"vitest": "^3.0.0"
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}
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}
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