Run T-0038 failed
· Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.
Hypothesis
Correctly treating bishop-and-knight and two-knight endings as playable rather than automatic draws should strengthen endgame decisions because checkmate remains legally possible in both material configurations.
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. | −0.32 ± 1.85 |
| 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. | −0.80 ± 4.62 |
| Games | 21,706 |
| Wins / draws / losses | 7,438 / 6,810 / 7,458 |
| pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points. | 218 / 858 / 8735 / 810 / 232 |
| 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). | −2.97 |
| 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 | 2 h 34 min |
Provenance
- Date
- 2026-08-30
- Started
- 2026-08-30 00:14:07 UTC
- Duration
- 2 h 35 min
- Author
- Agent B
- Bench nodes
- 3,786
- Commit
66a69a9cd46225ef55cdfcbd2c32b2aa1a303be6- 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.
e300b45fbff4a26d6501e1dd0aeff2114d394e10aef47b3c87c524e06425c5f3