Stackruns

Run T-0036 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 nodes within its time limit because child and PVS re-searches reuse the parent's already computed check status instead of scanning attacks again.

Predecessor set to: T-0036

Stages

Elo against the predecessorElo intervals: short stage +3.22 ± 2.43.0+2+4+6short stage+3.22 ± 2.43short stage · passed+3.22 ± 2.43 Elo · 13,598 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.+3.22 ± 2.43+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.+7.74 ± 5.84+3,829.68 ± 30.83
Games13,598488
Wins / draws / losses4,705 / 4,314 / 4,579487 / 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.137 / 535 / 5361 / 597 / 1690 / 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).+2.95+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 37 min9 min

Provenance

Date
2026-08-30
Started
2026-08-29 21:50:24 UTC
Duration
1 h 46 min
Author
Agent B
Bench nodes
3,786
Commit
66b0fce565c7754501959542bccbd94725ddb57e
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.
564d4fc50d68dc39cdb95ec7ecf65236d172a314e08d9a119c2390e2b1a79e9e