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============================== My email: jotes@go2.pl



Chess engine: BrainLearn 19.2 NNUE (Windows, Android, Mac and Linux)



BrainLearn - UCI chess engine
Rating CEDR=3715

BrainLearn is a free, powerful UCI chess engine derived from BrainFish. It is not a complete chess program and requires a UCI-compatible GUI (e.g. XBoard with PolyGlot, Scid, Cute Chess, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) in order to be used comfortably. 
Read the documentation for your GUI of choice for information about how to use Stockfish with it. 

v.19.2:
Brainlearn 19.2
Improved montecarlo (thanks to Khalid Omar)
Adjust reduction less at medium depths
This patch dampens the reduction increase/decrease from statScore at mid-range depths.
Inspired by patterns noticed in this tune: https://tests.stockfishchess.org/tests/view/635188930e5f47a8d0ffe8f5

Passed STC:
https://tests.stockfishchess.org/tests/view/63599dfd6b27ef94d9ec04af
LLR: 2.95 (-2.94,2.94) <0.00,2.00>
Total: 87464 W: 23519 L: 23134 D: 40811
Ptnml(0-2): 319, 9599, 23524, 9958, 332

Passed LTC:
https://tests.stockfishchess.org/tests/view/635a73046b27ef94d9ec2313
LLR: 2.94 (-2.94,2.94) <0.50,2.50>
Total: 154792 W: 41746 L: 41214 D: 71832
Ptnml(0-2): 79, 15181, 46349, 15703, 84

closes #4213
Bench 4271738

Individual statistics: BrainLearn 19 - 260 games (+ 56,=197,-  7), 59.4 %
Stockfish 15                  :   3 (+  0,=  3,-  0), 50.0 %
Dragon 3                      :   8 (+  0,=  8,-  0), 50.0 %
Fisherov chess monk 1.2       :  25 (+  0,= 24,-  1), 48.0 %
Revenge 3.0                   :   2 (+  1,=  1,-  0), 75.0 %
BigBallz 010922               :   8 (+  2,=  5,-  1), 56.2 %
ProteusSF Piranha 220904      :  10 (+  0,=  8,-  2), 40.0 %
Rebel 15.1a                   :   2 (+  1,=  1,-  0), 75.0 %
Nebula-vortex 1.0             :   8 (+  1,=  6,-  1), 50.0 %
Koivisto 8.16                 :   4 (+  3,=  1,-  0), 87.5 %
Dark Sister 1.9b              :   2 (+  1,=  1,-  0), 75.0 %
StockNemo 5.7.0.0             :   2 (+  2,=  0,-  0), 100.0 %
Marvin 6.1.0                  :   2 (+  1,=  1,-  0), 75.0 %
Alexandria 3.0                :   2 (+  2,=  0,-  0), 100.0 %
Berserk 10                    :   8 (+  3,=  5,-  0), 68.8 %
Caissa 1.1                    :   2 (+  2,=  0,-  0), 100.0 %
Fire NN 1072022               :   2 (+  2,=  0,-  0), 100.0 %
Frozenight 5.1.0              :   2 (+  2,=  0,-  0), 100.0 %
Lynx 0.12.0                   :   2 (+  2,=  0,-  0), 100.0 %
Trinket 3.0.0                 :   2 (+  2,=  0,-  0), 100.0 %
Stockfish 101022 Ivec         :   4 (+  0,=  4,-  0), 50.0 %
CorChess 101022               :  13 (+  1,= 11,-  1), 50.0 %
Solista Attack 2              :  15 (+  0,= 15,-  0), 50.0 %
Fatalii 0.3.1                 :   2 (+  2,=  0,-  0), 100.0 %
Francesca 0.32                :   2 (+  1,=  1,-  0), 75.0 %
Halogen 11                    :  11 (+  5,=  6,-  0), 72.7 %
Polyfish 221009               :  12 (+  0,= 12,-  0), 50.0 %
Mayhem 7.4                    :   4 (+  4,=  0,-  0), 100.0 %
RubiChess 20221001            :  12 (+  4,=  8,-  0), 66.7 %
ShashChess 25                 :  14 (+  1,= 13,-  0), 53.6 %
Eman 8.40                     :  23 (+  0,= 23,-  0), 50.0 %
Smallbrain 6.0                :   5 (+  5,=  0,-  0), 100.0 %
Stockfish 161022              :  16 (+  0,= 16,-  0), 50.0 %
AI 27.0                       :   1 (+  0,=  1,-  0), 50.0 %
RapChess 2022-10-17           :   1 (+  1,=  0,-  0), 100.0 %
BlackCore 2.0                 :   1 (+  1,=  0,-  0), 100.0 %
Viridithas 3.0.0              :   1 (+  1,=  0,-  0), 100.0 %
Vafra 12.2 Cfish              :   1 (+  0,=  1,-  0), 50.0 %
ShashChess 25.1               :   1 (+  0,=  1,-  0), 50.0 %
YuliGM PrO 4.0                :   1 (+  0,=  1,-  0), 50.0 %
Stockfish 081022              :   6 (+  1,=  4,-  1), 50.0 %
SugaR AI 131022               :   2 (+  0,=  2,-  0), 50.0 %
Dark Sister 1.9d              :   6 (+  0,=  6,-  0), 50.0 %
CorChess 171022               :   2 (+  0,=  2,-  0), 50.0 %
Fritz 18 Neuronal             :   2 (+  2,=  0,-  0), 100.0 %
pHoBiA 4.0                    :   2 (+  0,=  2,-  0), 50.0 %
Spectral Tactical 1.40        :   2 (+  0,=  2,-  0), 50.0 %
Stockfish 14.1                :   2 (+  0,=  2,-  0), 50.0 %


 BrainLearn 19.2 - download
github:https://github.com/amchess/BrainLearn/releases/tag/19.2
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