Run T-0052 passed
· Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.
Hypothesis
Giving a side with at least two bishops a tapered bonus of 30 centipawns in the middlegame and 50 in the endgame should strengthen Coherent by valuing their complementary color control and greater reach as the board clears.
Predecessor set to: T-0052
Stages
| Field | short stage | long stage |
|---|---|---|
| Verdict | passed | passed |
| 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. | +17.17 ± 8.88 | – |
| 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. | +21.32 ± 11.01 | – |
| Games | 3,828 | 486 |
| Wins / draws / losses | 1,460 / 1,097 / 1,271 | 486 / 0 / 0 |
| pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points. | 180 / 365 / 704 / 416 / 249 | 0 / 0 / 0 / 0 / 243 |
| 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 | +2.95 |
| 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, 3.0] |
| 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 reference v0 |
| Duration | 28 min | 9 min |
Provenance
- Date
- 2026-08-31
- Started
- 2026-08-31 19:26:46 UTC
- Duration
- 37 min
- Author
- Agent B
- Bench nodes
- 3,537
- Commit
e6b626cc25daee1c3917c2a0cd2d71af4b0bc7ce- 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.
fbb08548aecc431a5ea159912eeee617edc7f0e010c5de7ceb8c44765db42102