Avalanche - UCI (NNUE Chess Engine)
Author: SnowballSH Rating CEDR=3210
v.1.5:
A new version of Avalanche is here. The major feature of this release is the introduction of parallel search implementing the Lazy SMP algorithm. Avalanche now supports the Threads option, defaulting to 1.
Currently, using 4 threads makes Avalanche roughly 80 ELO stronger than the single-threaded version when testing against itself.
Other improvements include a stronger neural net trained over more lichess data, as well as some search tunings.
Avalanche 1.5.0 wins roughly twice as much as it loses against v1.4.0. It is expected to be around 70 ELO stronger than Avalanche 1.4.0, with an estimated 1CPU CCRL ELO of around 3218. This number will probably end up somewhere between [3175, 3225]. 4CPU is estimated to be around [3260, 3310].
STC Unbalanced Human Openings:
Score of v1.5.0 vs v1.4.0: 175 - 93 - 132 [0.603] 400
... v1.5.0 playing White: 113 - 24 - 63 [0.723] 200
... v1.5.0 playing Black: 62 - 69 - 69 [0.482] 200
... White vs Black: 182 - 86 - 132 [0.620] 400
Elo difference: 72.2 +/- 28.2, LOS: 100.0 %, DrawRatio: 33.0 %
Individual statistics: Avalanche 1.4.0 - 216 games (+ 99,= 32,- 85), 53.2 %
Critter 1.6a : 6 (+ 3,= 2,- 1), 66.7 %
Coiled 1.1 : 2 (+ 2,= 0,- 0), 100.0 %
Combusken 2.0.0 : 2 (+ 0,= 2,- 0), 50.0 %
Journeyman 2.1 : 2 (+ 2,= 0,- 0), 100.0 %
GreKo 2021.08 NNUE : 2 (+ 0,= 2,- 0), 50.0 %
Nirvanachess 2.5 : 2 (+ 1,= 0,- 1), 50.0 %
FabChess 1.16 : 2 (+ 1,= 1,- 0), 75.0 %
Invictus r382 : 2 (+ 1,= 1,- 0), 75.0 %
Atlas 4.25 : 2 (+ 2,= 0,- 0), 100.0 %
Stash 34.0 : 2 (+ 1,= 1,- 0), 75.0 %
Kuma 1.0 : 2 (+ 1,= 1,- 0), 75.0 %
Little Goliath 3.16 : 2 (+ 1,= 1,- 0), 75.0 %
Mittens 0.9 : 2 (+ 0,= 1,- 1), 25.0 %
Frozenight 6.0.0 : 2 (+ 0,= 1,- 1), 25.0 %
Sting Black Hole 4 : 2 (+ 1,= 0,- 1), 50.0 %
Winter 2.0 : 2 (+ 0,= 1,- 1), 25.0 %
RukChess 3.0.15 NNUE2 : 2 (+ 0,= 2,- 0), 50.0 %
Velvet 5.1.0 : 2 (+ 0,= 1,- 1), 25.0 %
YuliGM PrO 5.0 : 2 (+ 0,= 0,- 2), 0.0 %
Clovis III : 4 (+ 3,= 0,- 1), 75.0 %
Flounder 0.4.0.0 : 2 (+ 2,= 0,- 0), 100.0 %
Zangdar 2.11.02 : 2 (+ 2,= 0,- 0), 100.0 %
Svart 2.0 : 2 (+ 2,= 0,- 0), 100.0 %
Polaris 1.2.0 : 2 (+ 2,= 0,- 0), 100.0 %
Yuliirma 1.0 : 2 (+ 0,= 0,- 2), 0.0 %
Captain 4.0 : 6 (+ 6,= 0,- 0), 100.0 %
Pawn 1.0 : 6 (+ 1,= 1,- 4), 25.0 %
Caissa 1.7 : 6 (+ 0,= 3,- 3), 25.0 %
SF PB 270223 : 2 (+ 0,= 0,- 2), 0.0 %
Eman 8.81 : 2 (+ 0,= 0,- 2), 0.0 %
Renegade 0.9.0 : 4 (+ 4,= 0,- 0), 100.0 %
Seawall 20230316 : 2 (+ 2,= 0,- 0), 100.0 %
Komodo 14.1 : 6 (+ 0,= 2,- 4), 16.7 %
Stockfish 20230314 : 2 (+ 0,= 0,- 2), 0.0 %
Stockfish 20230313 : 4 (+ 0,= 1,- 3), 12.5 %
Stockfish 20230314 Ivec : 2 (+ 0,= 0,- 2), 0.0 %
CorChess 20230323 : 2 (+ 0,= 0,- 2), 0.0 %
Blue Marlin 15.7 : 8 (+ 0,= 3,- 5), 18.8 %
Leorik 2.4 : 8 (+ 7,= 1,- 0), 93.8 %
Midnight 4 : 8 (+ 8,= 0,- 0), 100.0 %
Polaris 1.3.0 : 6 (+ 6,= 0,- 0), 100.0 %
Stockfish 20230325 : 4 (+ 0,= 1,- 3), 12.5 %
Polyfish 20230325 : 4 (+ 0,= 0,- 4), 0.0 %
Stockfish 20230319 Ivec : 4 (+ 0,= 0,- 4), 0.0 %
Willow 2.6 : 12 (+ 12,= 0,- 0), 100.0 %
Bagatur 3.7b : 6 (+ 2,= 2,- 2), 50.0 %
Cheers 0.2.2 : 7 (+ 7,= 0,- 0), 100.0 %
Cheers 0.2 : 1 (+ 1,= 0,- 0), 100.0 %
Corchess 20230314 : 2 (+ 0,= 0,- 2), 0.0 %
ShashChess 30 : 6 (+ 0,= 0,- 6), 0.0 %
Cheers 0.2.1 : 2 (+ 2,= 0,- 0), 100.0 %
Corchess 20230319 : 2 (+ 0,= 0,- 2), 0.0 %
Polyfish 20230326 : 2 (+ 0,= 0,- 2), 0.0 %
Apotheosis 2.0.0 : 2 (+ 2,= 0,- 0), 100.0 %
Peacekeeper 1.3 : 4 (+ 4,= 0,- 0), 100.0 %
Viridithas 8.1.0 : 4 (+ 0,= 1,- 3), 12.5 %
Eman 8.90 : 2 (+ 0,= 0,- 2), 0.0 %
Mandalorian 2 : 2 (+ 0,= 0,- 2), 0.0 %
CfishNN 20230329 : 2 (+ 0,= 0,- 2), 0.0 %
Deep Blue 230329 : 2 (+ 0,= 0,- 2), 0.0 %
Stockfish 20230329 : 2 (+ 0,= 0,- 2), 0.0 %
Stockfish 20230401 : 2 (+ 0,= 0,- 2), 0.0 %
Cfish 010421 Lcfish : 2 (+ 0,= 0,- 2), 0.0 %
CorChess 20230401 : 2 (+ 0,= 0,- 2), 0.0 %
Jence 1.0.2 : 4 (+ 4,= 0,- 0), 100.0 %
Polaris 1.4.0 : 4 (+ 4,= 0,- 0), 100.0 %
Github:https://github.com/SnowballSH/Avalanche/releases/tag/v1.5.0
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