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New version chess engine for Android: Viridithas 10.0.0

 

Chess engine: Viridithas
Rating CEDR=3148

v.10.0.0:
Upgrades
Only update best-move when alpha is raised (3.06 +- 2.35) (#52)
Return tt_value rather than alpha/beta on ttcut (14.41 +- 6.06) (#53)
Dynamic time management using subtree sizes (5.63 +- 3.54) (#54)
Smaller net trained on FRC + cleaned-up old data (6.14 +- 3.85) (#55)
Use a greater fraction of the clock increment (9.50 +- 4.87 at 8s+0.08s) (#56)
Material scaling for NNUE eval (9.50 +- 4.87) (#57)
Prevent NMP if TT indicates it will fail (5.66 +- 3.58) (#60)
Elo comparison against v9.1.0

Individual statistics: Viridithas 7.0.0 - 84 games (+ 36,= 17,- 31), 53.0 %
Laser 1.7                     :   2 (+  1,=  1,-  0), 75.0 %
GoldOno 7.0                   :   4 (+  0,=  3,-  1), 37.5 %
Topple 0.7.5                  :   2 (+  2,=  0,-  0), 100.0 %
Asymptote 0.8                 :   2 (+  1,=  1,-  0), 75.0 %
SugaR AI 1.50                 :   2 (+  0,=  0,-  2),  0.0 %
Stockfish 13                  :   2 (+  0,=  0,-  2),  0.0 %
Spider 1.1c                   :   2 (+  1,=  0,-  1), 50.0 %
Black Mamba 2.0               :   2 (+  1,=  1,-  0), 75.0 %
Stash 33.22                   :   4 (+  3,=  1,-  0), 87.5 %
Velvet 5.0.0                  :   2 (+  2,=  0,-  0), 100.0 %
Carp 1.2.0                    :   6 (+  6,=  0,-  0), 100.0 %
Winter 2.0                    :   6 (+  5,=  1,-  0), 91.7 %
Ethereal 14.00                :   6 (+  1,=  0,-  5), 16.7 %
Polyfish 230202               :   6 (+  0,=  2,-  4), 16.7 %
Stockfish 230202              :   6 (+  0,=  0,-  6),  0.0 %
Smallbrain 7.0                :   6 (+  1,=  3,-  2), 41.7 %
Sting Black Hole 4            :   6 (+  6,=  0,-  0), 100.0 %
Fatalii 0.4.0                 :   2 (+  2,=  0,-  0), 100.0 %
Svart 2.0.0                   :   2 (+  2,=  0,-  0), 100.0 %
ShashChess 29.1               :   2 (+  0,=  0,-  2),  0.0 %
Pawn 1.0                      :   2 (+  0,=  1,-  1), 25.0 %
Berserk 11.1                  :   2 (+  0,=  1,-  1), 25.0 %
Velvet 2.5.0 dev-1            :   2 (+  0,=  2,-  0), 50.0 %
CfishNN 230309                :   2 (+  0,=  0,-  2),  0.0 %
Polyfish 20230304             :   2 (+  0,=  0,-  2),  0.0 %
Peacekeeper 1.20              :   2 (+  2,=  0,-  0), 100.0 %



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