Run T-0074 passed

2026-09-13 · Evidence: SPRT Sequential probability ratio test. Games are played until the accumulated evidence reaches one of two bounds; then the test stops.

Hypothesis

Bitboard attack operations replace the previous attack generation for mobility evaluation and move generation.

Wording edited for publication from the German entry; the register carries the author’s own text.

Stages

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 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.	+28.21 ± 11.25	+26.81 ± 10.69
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.	+38.23 ± 15.18	+38.33 ± 15.23
Games	2,012	2,000
Wins / draws / losses	731 / 713 / 568	697 / 760 / 543
pentanomial Games are played in pairs with swapped colours; the five counts are the pairs scoring 0, ½, 1, 1½ and 2 points.	`53 / 207 / 381 / 254 / 111`	`45 / 190 / 428 / 240 / 97`
LLR Log-likelihood ratio, the running evidence of an SPRT. It starts at 0; a stage passes at the upper bound and fails at the lower one.	+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, 5.0]
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 predecessor
Duration	14 min	1 h 14 min

Provenance

Date: 2026-09-13
Started: 2026-09-13 00:57:19 UTC
Duration: 1 h 29 min
Author: Agent D
Epoch: 4
Gatekeeper: passed
Bench nodes: 3,406