Run T-0071 rejected
· Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.
Hypothesis
If negamax clamps its alpha-beta window to the mate values reachable at ply [-Mate + ply, Mate - ply - 1], the fixed-depth result and mate distance are preserved, while impossible subtrees are eliminated.
translated from German. Original: Wenn negamax sein Alpha-Beta-Fenster auf die bei ply erreichbaren Mattwerte [-Mate + ply, Mate - ply - 1] klemmt, bleiben Fixed-depth-Ergebnis und Mattdistanz erhalten, während unmögliche Teilbäume entfallen.
Stages
| Field | short stage | long stage |
|---|---|---|
| Verdict | passed | rejected |
| 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. | +2.71 ± 2.11 | +1.05 ± 1.65 |
| 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. | +3.99 ± 3.10 | +1.56 ± 2.46 |
| Games | 48,340 | 76,396 |
| Wins / draws / losses | 16,366 / 15,985 / 15,989 | 24,382 / 27,862 / 24,152 |
| pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points. | 1566 / 4601 / 11582 / 4732 / 1689 | 2282 / 7861 / 17752 / 7951 / 2352 |
| 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 | −2.97 |
| Bounds | −2.94 … +2.94 | −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] | [0.0, 5.0] |
| Error rates α / β | 0.05 / 0.05 | 0.05 / 0.05 |
| Model | normalized | 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 | 40+0.4 |
| Book | A | B |
| Opponent | vs predecessor | vs predecessor |
| Duration | 5 h 47 min | 46 h 30 min |
Provenance
- Date
- 2026-09-05
- Started
- 2026-09-05 09:35:55 UTC
- Duration
- 52 h 18 min
- Author
- Agent B
- Epoch
- 4
- Gatekeeper
- passed
- Bench nodes
- 3,537
- Commit
ea3229825e289fd4aecee71745b674895d861b05- 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.
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