FuryBench Testing Framework

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Finished
PlentyChess Yoshie2000
0195
diff8.0+0.08
ELO    7.96 +- 3.49 (95%)
LLR    2.91 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 9696 W: 2514 L: 2292 D: 4890
PENTA  [17, 1048, 2509, 1244, 30]
PlentyChess Yoshie2000
0195
diffN=20000
ELO    19.02 +- 6.07 (95%)
LLR    2.91 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 4772 W: 1478 L: 1217 D: 2077
PENTA  [68, 473, 1078, 664, 103]
Caissa Witek
corrhist-recorrect-eval
diff10.0+0.10
ELO    0.93 +- 0.74 (95%)
LLR    2.99 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 222062 W: 53326 L: 52730 D: 116006
PENTA  [706, 26303, 56391, 26951, 680]
Erebus Jshriver
main
diffN=5000
ELO    0.15 +- 0.25 (95%)
GAMES  N: 5000006/5000000 W: 1752971 L: 1750857 D: 1496178
Schoenemann Jochen
feature/lmr-ttpv-unsure
diff8.0+0.08
ELO    7.05 +- 4.62 (95%)
LLR    2.97 (-2.94, 2.94) [0.00, 5.00]
GAMES  N: 7594 W: 2027 L: 1873 D: 3694
PENTA  [73, 926, 1675, 1020, 103]
Caissa Witek
improving-or-eval-above-beta
diff60.0+0.60
ELO    1.40 +- 1.31 (95%)
LLR    2.98 (-2.94, 2.94) [-0.50, 2.50]
GAMES  N: 64246 W: 15213 L: 14955 D: 34078
PENTA  [39, 7323, 17133, 7597, 31]
Schoenemann Jochen
feature/lmr-history
forgot to push changes ahhhh
diff8.0+0.08
ELO    4.06 +- 3.10 (95%)
LLR    3.01 (-2.94, 2.94) [0.00, 5.00]
GAMES  N: 16000 W: 4201 L: 4014 D: 7785
PENTA  [158, 1898, 3738, 2011, 195]
Caissa Witek
improving-or-eval-above-beta
diff10.0+0.10
ELO    4.22 +- 2.22 (95%)
LLR    2.97 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 25056 W: 6117 L: 5813 D: 13126
PENTA  [81, 2850, 6376, 3126, 95]
Caissa Witek
root-partial-best-move
diffN=25000
ELO    12.86 +- 4.53 (95%)
LLR    2.95 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 9512 W: 2947 L: 2595 D: 3970
PENTA  [201, 990, 2059, 1268, 238]
Schoenemann Jochen
feature/major-history
Try adjusted values
diff8.0+0.08
ELO    4.22 +- 3.23 (95%)
LLR    3.00 (-2.94, 2.94) [0.00, 5.00]
GAMES  N: 15886 W: 4303 L: 4110 D: 7473
PENTA  [214, 1868, 3603, 2027, 231]
Caissa Witek
root-partial-best-move
smp diff5.0+0.05
ELO    5.46 +- 2.55 (95%)
LLR    2.98 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 18502 W: 4624 L: 4333 D: 9545
PENTA  [46, 2059, 4759, 2332, 55]
Caissa Witek
root-partial-best-move
diff10.0+0.10
ELO    1.51 +- 1.15 (95%)
LLR    2.95 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 87868 W: 20973 L: 20591 D: 46304
PENTA  [232, 9850, 23386, 10236, 230]
Caissa Witek
root-partial-best-move
diff4.0+0.04
ELO    2.83 +- 1.79 (95%)
LLR    2.95 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 41878 W: 10427 L: 10086 D: 21365
PENTA  [257, 4816, 10506, 5049, 311]
Caissa Witek
speedups
Search: Keep accumulators and PV lines out of NodeInfo NodeInfo shrinks from 6.9 KB to a few hundred bytes, so the search state of nearby plies shares cache lines and pages. Total memory is unchanged. Measured against the previous commit at depth 13: make bmi2 +0.41% [+0.06, +0.76] (accumulators), +0.20% [-0.16, +0.57] (PV line) make bmi2_pgo +0.43% [+0.08, +0.77] (both) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
diff4.0+0.04
ELO    1.11 +- 0.89 (95%)
LLR    2.95 (-2.94, 2.94) [0.00, 2.00]
GAMES  N: 169906 W: 42275 L: 41734 D: 85897
PENTA  [1138, 19897, 42401, 20320, 1197]
PlentyChess Yoshie2000
npv-fds-ext
diff8.0+0.08
ELO    0.91 +- 0.69 (95%)
LLR    2.89 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 243308 W: 59420 L: 58786 D: 125102
PENTA  [334, 28319, 63719, 28943, 339]
Quanticade DarkNeutrino
fix-history-enpas
search.c: Fix capture history indexing on enpassant
diff10.0+0.10
ELO    1.11 +- 2.02 (95%)
LLR    2.97 (-2.94, 2.94) [-3.00, 1.00]
GAMES  N: 27626 W: 6597 L: 6509 D: 14520
PENTA  [62, 3065, 7470, 3155, 61]
Quanticade DarkNeutrino
see-ray-fix
see.c: Fix SEE pinned ray
diff10.0+0.10
ELO    -0.13 +- 0.95 (95%)
LLR    2.94 (-2.94, 2.94) [-3.00, 1.00]
GAMES  N: 121730 W: 28838 L: 28884 D: 64008
PENTA  [223, 13521, 33428, 13465, 228]
Quanticade DarkNeutrino
[Stockfish] master
Adv datagen vs SF 6000 fixed nodes
time odds diffN=5000
ELO    -5.38 +- 0.19 (95%)
GAMES  N: 10000006/10000000 W: 3782460 L: 3937423 D: 2280123
PlentyChess Yoshie2000
refuted-by-probcut
diff40.0+0.40
ELO    1.09 +- 0.89 (95%)
LLR    2.89 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 133196 W: 32346 L: 31928 D: 68922
PENTA  [24, 14692, 36740, 15126, 16]
PlentyChess Yoshie2000
0194
diffN=20000
ELO    4.70 +- 2.77 (95%)
LLR    3.04 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 23066 W: 6703 L: 6391 D: 9972
PENTA  [378, 2690, 5118, 2936, 411]
Integral Fury
factorised-ob
diffN=20000
ELO    1.81 +- 1.35 (95%)
LLR    3.44 (-2.25, 2.89) [0.00, 3.00]
GAMES  N: 95164 W: 27140 L: 26645 D: 41379
PENTA  [1523, 11399, 21319, 11742, 1599]
Integral Fury
non_capthist_malus_decay
diff40.0+0.40
ELO    1.95 +- 1.53 (95%)
LLR    2.89 (-2.25, 2.89) [0.00, 3.00]
GAMES  N: 44314 W: 10913 L: 10664 D: 22737
PENTA  [11, 4783, 12323, 5026, 14]
PlentyChess Yoshie2000
refuted-by-probcut
diff8.0+0.08
ELO    1.01 +- 0.80 (95%)
LLR    2.91 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 180496 W: 44044 L: 43519 D: 92933
PENTA  [280, 21019, 47108, 21578, 263]
Integral Fury
non_capthist_malus_decay
diff10.0+0.10
ELO    4.39 +- 2.69 (95%)
LLR    2.90 (-2.25, 2.89) [0.00, 3.00]
GAMES  N: 15980 W: 4076 L: 3874 D: 8030
PENTA  [20, 1788, 4189, 1956, 37]
PlentyChess Yoshie2000
0193
diffN=20000
ELO    1.89 +- 1.50 (95%)
LLR    2.91 (-2.25, 2.89) [0.00, 2.50]
GAMES  N: 73532 W: 20653 L: 20254 D: 32625
PENTA  [972, 8876, 16790, 9037, 1091]