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With a larger neural network and further optimizations, Avalanche is now about 100 elo stronger, with strength between Stockfish 12 and Stockfish 13.
Avalanche now supports playing Chess960 and has a surprisingly high strength even without specific fine-tuning for 960. Avalanche also now supports a richer set of UCI options, including WDL output, Limited Strength, Pondering.
Binaries for popular architectures are directly attached below. All other binaries can still be found in the zip file.
You can now use and play against Avalanche online: https://avalanche.snowballsh.com
Thanks everyone for the support!
STC vs Avalanche 4.0.0:
Elo | 100.18 +- 3.87 (95%)
Conf | 8.0+0.08s Threads=1 Hash=16MB
Games | N: 10000 W: 4048 L: 1242 D: 4710
Penta | [13, 355, 1794, 2489, 349]
LTC vs Avalanche 4.0.0:
Elo | 102.22 +- 8.18 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 2000 W: 789 L: 217 D: 994
Penta | [2, 65, 338, 549, 46]
VLTC vs Avalanche 4.0.0:
Elo | 92.46 +- 31.19 (95%)
Conf | 120.0+1.00s Threads=1 Hash=64MB
Games | N: 100 W: 36 L: 10 D: 54
Penta | [0, 2, 20, 28, 0]
SMP vs Avalanche 4.0.0 (4 Threads):
Elo | 111.37 +- 14.47 (95%)
Conf | 40.0+0.40s Threads=4 Hash=64MB
Games | N: 500 W: 193 L: 38 D: 269
Penta | [0, 8, 86, 149, 7]
STC Double Fischer Random vs the first build with UCI_Chess960 (b6ac754):
Elo | 257.94 +- 14.20 (95%)
Conf | 8.0+0.08s Threads=1 Hash=16MB
Games | N: 2006 W: 1346 L: 81 D: 579
Penta | [2, 17, 141, 400, 443]
LTC vs Stockfish 13:
Elo | -38.02 +- 11.60 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 204 L: 313 D: 483
Penta | [12, 170, 234, 83, 1]
LTC vs Stockfish 12:
Elo | 15.99 +- 11.35 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 258 L: 212 D: 530
Penta | [6, 98, 241, 154, 1]
LTC vs Igel 3.7.0:
Elo | -76.61 +- 11.26 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 147 L: 364 D: 489
Penta | [14, 236, 203, 47, 0]
LTC vs RubiChess 20240817:
Elo | -71.52 +- 11.37 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 154 L: 357 D: 489
Penta | [7, 246, 192, 53, 2]
LTC vs Seer 2.8.0:
Elo | 11.12 +- 11.54 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 256 L: 224 D: 520
Penta | [7, 102, 248, 138, 5]
LTC vs Arasan 26.0:
Elo | 48.61 +- 10.95 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 327 L: 188 D: 485
Penta | [1, 67, 227, 202, 3]
LTC vs Koivisto 9.0:
Elo | 46.84 +- 11.32 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 300 L: 166 D: 534
Penta | [4, 69, 218, 207, 2]
LTC Chess960 vs Igel 3.7.0:
Elo | -28.55 +- 10.30 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 78 L: 160 D: 762
Penta | [16, 111, 313, 59, 1]
LTC Chess960 vs Halogen 16:
Elo | -19.13 +- 13.71 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 157 L: 212 D: 631
Penta | [24, 136, 234, 83, 23]
LTC Chess960 vs Stockfish 13:
Elo | 46.13 +- 13.86 (95%)
Conf | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 1000 W: 255 L: 123 D: 622
Penta | [7, 86, 217, 148, 42]