Stackruns

Run T-0044 passed

· Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.

Hypothesis

Coherent should search more positions in the allotted time because pseudo-legal move generation enumerates only the moving side's occupied squares from incrementally maintained masks while preserving move order.

Predecessor set to: T-0044

Stages

Elo against the predecessorElo intervals: short stage +2.75 ± 2.13.0+2+4short stage+2.75 ± 2.13short stage · passed+2.75 ± 2.13 Elo · 50,524 games
Point estimate with the reported 95-percent half-width, per stage. The dashed line is zero. Estimates from a stopped sequential test are biased by the stopping rule; the interval is nominal.
Field short stagelong stage
Verdictpassedpassed
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.+2.75 ± 2.13+1,194.89
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.+3.91 ± 3.03+7,659.38 ± 30.89
Games50,524486
Wins / draws / losses17,421 / 16,082 / 17,021485 / 1 / 0
pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points.1837 / 4831 / 11629 / 5025 / 19400 / 0 / 0 / 1 / 242
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).+2.96+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 / β0.05 / 0.050.05 / 0.05
Modelnormalizednormalized
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+0.0840+0.4
BookAB
Opponentvs predecessorvs reference v0
Duration6 h 01 min8 min

Provenance

Date
2026-08-30
Started
2026-08-30 11:45:25 UTC
Duration
6 h 10 min
Author
Agent B
Bench nodes
3,786
Commit
47a55e89f8c00efe9983a8a56d4ff009c5f4bc25
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.
93dbea3dcd7cfc3f20564cd47b4e47af00840438b49d209d42571788edc801fc