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Chess engine: Motor 0.7.0

 


MotorUCI chess engine written in C++ 17 with (768 -> 32) x 2 -> 1 NNUE trained with
Currently requires Clang or GCC/MinGW compiler.
Author: Martin Novák, Ranking Chess Engines Diary CEDR=3580

v.0.7.0:
Progression Tests:
Elo   | 77.52 +- 7.70 (95%)
Conf  | 40.0+0.40s Threads=1 Hash=64MB
Games | N: 2000 W: 733 L: 294 D: 973
Penta | [1, 77, 430, 466, 26]
Elo   | 74.18 +- 3.72 (95%)
Conf  | 10.0+0.10s Threads=1 Hash=32MB
Games | N: 10008 W: 3766 L: 1661 D: 4581
Penta | [22, 454, 2152, 2149, 227]
Tests on Pohl.pgn opening book

Changes
NNUE
3 king input buckets +11
MPE 2.5 loss function +24
Stricter weight clipping +8
Static evaluation correction history
Pawn structure +6 (idea from Caissa)
Material count +3 (idea from Caissa)
Material structure +3 (idea from Starzix)
Probcut +4, +2
TT reduction in pv nodes +8.5
QS check evasions +12.5
Material scaling +6.75
FP tweaks 4.5, +2.75, +7.8

Motor 0.6.0 - results:
Caissa 1.197/23-923 Games
Clarity 7.2.010.5/21+021 Games
Alexandria 7.0.05.5/18-718 Games
Obsidian 13.05/18-818 Games
Lizard 10.56/14-214 Games
Berserk 135/14-414 Games
JigSaw 5.92/13-913 Games
Uralochka 3.41a JA6/12+012 Games
Viridithas 13.0.05.5/12-112 Games
Clover 6.25.5/12-112 Games
Yuliana 5.02.5/12-712 Games
Javelin 2.0.011/11+1111 Games
Lambergar 0.6.010.5/11+1011 Games
Kookaburra 3.001.5/11-811 Games
Bagatur 5.1a9/10+810 Games
Patricia 38/10+610 Games
Chess-System-Tal-24.5/10-110 Games
RubiChess 202401124.5/10-110 Games
Peacekeeper 3.014/10-210 Games
Seer 2.8.04/10-210 Games
Ethereal 14.253.5/10-310 Games

Motor 0.7.0 download


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