Run T-0035 passed

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

Hypothesis

Searching a valid transposition-table move before ordering the remaining moves should make the engine stronger by avoiding unnecessary SEE Static exchange evaluation: an estimate of the material outcome of a capture sequence on one square, without searching. evaluations and sorting when that move causes an immediate cutoff.

Predecessor set to: T-0035

Stages

Elo against the predecessorElo intervals: short stage +3.11 ± 2.35.0+2+4+6short stage+3.11 ± 2.35short stage · passed+3.11 ± 2.35 Elo · 14,098 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.+3.11 ± 2.35+1,075.01
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.+7.58 ± 5.74+3,829.68 ± 30.83
Games14,098488
Wins / draws / losses4,862 / 4,500 / 4,736487 / 0 / 1
pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points.141 / 535 / 5592 / 619 / 1620 / 0 / 1 / 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+2.96
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
Duration1 h 40 min9 min

Provenance

Date
2026-08-29
Started
2026-08-29 19:56:24 UTC
Duration
1 h 49 min
Author
Agent B
Bench nodes
3,786
Commit
03759ea9be87cbe792070efdfbfa31fb9c874fee
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.
7f9a9b8c141bc44984448596bfdf4f558530081ec6c1b63213bb4375a1fa634c