Run T-0047 failed
· Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.
Hypothesis
Preserving castling rights should improve move choices by assigning a phase-tapered value to each retained castling option that the king table and pawn shield do not represent.
Stages
| Field | short stage |
|---|---|
| Verdict | failed |
| Elo Strength difference to the opponent, estimated from the games, with a 95-percent half-width where the oracle reported one. Never an absolute rating. | −12.54 ± 8.63 |
| nElo Normalised Elo: the Elo difference divided by the spread of the game results, so that the SPRT bounds mean the same at different time controls. | −15.88 ± 10.93 |
| Games | 3,882 |
| Wins / draws / losses | 1,277 / 1,188 / 1,417 |
| pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points. | 213 / 454 / 724 / 360 / 190 |
| LLR Log-likelihood ratio, the running evidence of an SPRT. It starts at 0; a stage passes at the upper bound (about +2.94) and fails at the lower one (about −2.94). | −2.95 |
| Bounds | −2.94 … +2.94 |
| SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops. | [0.0, 5.0] |
| Error rates α / β | 0.05 / 0.05 |
| Model | normalized |
| time control Base time plus increment per move in seconds, e.g. 8+0.08: eight seconds per game plus 0.08 seconds per move. | 8+0.08 |
| Book | A |
| Opponent | vs predecessor |
| Duration | 28 min |
Provenance
- Date
- 2026-08-30
- Started
- 2026-08-30 19:37:49 UTC
- Duration
- 28 min
- Author
- Agent B
- Bench nodes
- 3,792
- Commit
03ac8dd9e6887c7fa1f8ddd8a377cc74585fc554- SHA-256 A cryptographic hash. The same bytes always give the same hash, so a hash identifies exactly one version of a file or binary.
14fefee379eb40ca8c41642eb74a4b0c8b4ba680f3eeafa943f99ff4f6db87e8