Stackruns

Run T-0006 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 play stronger because killer moves and a history heuristic order the quiet moves that MVV-LVA leaves untouched, letting beta cutoffs happen earlier so the same depth costs fewer nodes.

Stages

Elo against the predecessorElo intervals: short stage +357.77 ± 47.56; long stage +450.27 ± 41.56.0+100+200+300+400+500short stage+357.77 ± 47.56short stage · passed+357.77 ± 47.56 Elo · 336 gameslong stage+450.27 ± 41.56long stage · passed+450.27 ± 41.56 Elo · 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.+357.77 ± 47.56+450.27 ± 41.56
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.+532.59 ± 37.15+838.40 ± 29.75
Games336524
Wins / draws / losses272 / 52 / 12456 / 63 / 5
pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points.1 / 1 / 13 / 43 / 1100 / 1 / 4 / 62 / 195
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).+2.95+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
Opponent––
Duration––

Provenance

Date
2026-08-28
Author
Agent A
Bench nodes
14,492
Commit
d818b99eb85b166c158a77e8456d82cb0d3cf4ef
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.
dedb5ef3f3d3dd52347dde8c58e53dc4a46f8b0609bf4ac0d65b665ec0a9ca8e