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Chess engine: Viridithas 10.0.0

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Chess engine: Viridithas   Author:Cosmo
Rating CEDR=3448

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
STC:

ELO   | 45.35 +- 6.90 (95%)
CONF  | 8.0+0.08s Threads=1 Hash=16MB
GAMES | N: 5000 W: 1604 L: 955 D: 2441
LTC:

ELO   | 57.86 +- 14.50 (95%)
CONF  | 60.0+0.60s Threads=1 Hash=16MB
GAMES | N: 1000 W: 308 L: 143 D: 549
FRC:

ELO   | 141.03 +- 16.12 (95%)
CONF  | 60.0+0.60s Threads=1 Hash=16MB
GAMES | N: 1000 W: 463 L: 78 D: 459

Individual statistics: Viridithas 8.1.0 - 193 games (+ 66,= 63,- 64), 50.5  %
Critter 1.6a                  :   4 (+  1,=  3,-  0), 62.5 %
Asymptote 0.8                 :   1 (+  0,=  0,-  1),  0.0 %
Barbarossa 0.6.0              :   1 (+  0,=  0,-  1),  0.0 %
FrankyGo 1.0.3                :   1 (+  0,=  0,-  1),  0.0 %
Slowchess 2.9                 :   2 (+  0,=  1,-  1), 25.0 %
Revenge 3.0                   :   4 (+  0,=  2,-  2), 25.0 %
Seer 2.6                      :   6 (+  0,=  2,-  4), 16.7 %
ShenYu 1.0.1                  :   1 (+  0,=  0,-  1),  0.0 %
Minic 3.33                    :   4 (+  1,=  3,-  0), 62.5 %
Uralochka 3.39d               :   2 (+  0,=  2,-  0), 50.0 %
Igel 3.4.0                    :   4 (+  0,=  2,-  2), 25.0 %
Clover 3.3.1                  :   2 (+  0,=  2,-  0), 50.0 %
Rebel 16.2                    :   4 (+  0,=  2,-  2), 25.0 %
Berserk 11.1                  :   4 (+  0,=  2,-  2), 25.0 %
Koivisto 9.2                  :   4 (+  0,=  0,-  4),  0.0 %
Ethereal 14.00 NNUE           :   2 (+  0,=  1,-  1), 25.0 %
BlackCore 6.0                 :   4 (+  0,=  3,-  1), 37.5 %
Booot 7.1                     :   4 (+  0,=  4,-  0), 50.0 %
Wasp 6.50                     :   4 (+  1,=  3,-  0), 62.5 %
Clovis III                    :   2 (+  2,=  0,-  0), 100.0 %
Valiant Mk V                  :   1 (+  0,=  0,-  1),  0.0 %
Captain 4.0                   :   2 (+  2,=  0,-  0), 100.0 %
Pawn 1.0                      :   2 (+  0,=  1,-  1), 25.0 %
Caissa 1.7                    :   6 (+  0,=  4,-  2), 33.3 %
Renegade 0.9.0                :   2 (+  2,=  0,-  0), 100.0 %
Seawall 20230316              :   1 (+  0,=  0,-  1),  0.0 %
Komodo 14.1                   :   4 (+  0,=  3,-  1), 37.5 %
Blue Marlin 15.7              :   2 (+  0,=  0,-  2),  0.0 %
Leorik 2.4                    :   6 (+  6,=  0,-  0), 100.0 %
Avalanche 1.4.0               :   4 (+  3,=  1,-  0), 87.5 %
Midnight 4                    :   2 (+  2,=  0,-  0), 100.0 %
Polaris 1.3.0                 :   2 (+  2,=  0,-  0), 100.0 %
Willow 2.6                    :   4 (+  4,=  0,-  0), 100.0 %
Bagatur 3.7b                  :   4 (+  4,=  0,-  0), 100.0 %
Cheers 0.2.2                  :   4 (+  4,=  0,-  0), 100.0 %
ShashChess 30                 :   2 (+  0,=  1,-  1), 25.0 %
Fritz 18 Neuronal             :   2 (+  0,=  2,-  0), 50.0 %
Polyfish 20230326             :   4 (+  0,=  0,-  4),  0.0 %
JENCE 1.0.2                   :   2 (+  2,=  0,-  0), 100.0 %
Apotheosis 2.0.0              :   4 (+  4,=  0,-  0), 100.0 %
Peacekeeper 1.3               :   8 (+  8,=  0,-  0), 100.0 %
Eman 8.90                     :   6 (+  0,=  1,-  5),  8.3 %
Mandalorian 2                 :   4 (+  0,=  1,-  3), 12.5 %
CfishNN 20230329              :   4 (+  0,=  2,-  2), 25.0 %
Deep Blue 230329              :   4 (+  0,=  1,-  3), 12.5 %
Stockfish 20230329            :   2 (+  0,=  1,-  1), 25.0 %
Stockfish 20230401            :   2 (+  0,=  0,-  2),  0.0 %
Cfish 010421 Lcfish           :   2 (+  0,=  1,-  1), 25.0 %
CorChess 20230401             :   4 (+  0,=  2,-  2), 25.0 %
Arasan 23.5                   :   4 (+  0,=  3,-  1), 37.5 %
Knightx 3.7b                  :   2 (+  2,=  0,-  0), 100.0 %
Mayhem 8.1                    :   2 (+  0,=  2,-  0), 50.0 %
Lc0 0.30.0-dev+git.9a205320   :   2 (+  0,=  1,-  1), 25.0 %
Polaris 1.4.1                 :   2 (+  2,=  0,-  0), 100.0 %
Polyfish 20230402             :   2 (+  0,=  1,-  1), 25.0 %
Svart 3                       :   2 (+  2,=  0,-  0), 100.0 %
Tenax 0.7.7                   :   2 (+  0,=  2,-  0), 50.0 %
Altair 2.0.0                  :   2 (+  2,=  0,-  0), 100.0 %
Akimbo 0.2.0                  :   1 (+  0,=  0,-  1),  0.0 %
Clover 4.0                    :   2 (+  0,=  0,-  2),  0.0 %
RubiChess 20230407            :   4 (+  0,=  1,-  3), 12.5 %
Mess 0.2.0                    :   1 (+  1,=  0,-  0), 100.0 %
ChessKISS 1.8d                :   1 (+  1,=  0,-  0), 100.0 %
Jence 1.0.2                   :   4 (+  4,=  0,-  0), 100.0 %
Polaris 1.4.0                 :   4 (+  4,=  0,-  0), 100.0 %



Rating progress:
PlEngineRatingScoreGames%
489Viridithas 9.0.03448.9244.5044854.58
550Viridithas 8.1.03338.7114.0025444.88
608Viridithas 6.0.03245.3118.0032336.53
611Viridithas 7.0.03239.0126.5048426.14
654Viridithas 5.1.03168.4117.0027941.94
700Viridithas 5.0.03086.315.001688.93
750Viridithas 4.0.03017.271.5014848.31
777Viridithas 3.0.02978.440.509343.55
834Viridithas 2.6.02860.5161.0031351.44
904Viridithas 2.4.32739.55.002619.23
924Viridithas 2.5.02713.019.5010818.06
1133Viridithas 2.4.22345.01.00541.85


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