Rating CEDR=3728
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.
BrainLearn 25.2 - download
v.25.2:
Fixed a bug in learning: no more entries with depth=0
Old experience files can be reduced by this tool from Ibai Burgos.
A great thanks to him!
The engine is always aligned with official Stockfish release.
From now on, I'll be always only aligned with Stockfish official release.
Individual statistics: BrainLearn 21.1 - 840 games (+259,=575,- 6), 65.1 %
Critter 1.6a : 14 (+ 12,= 2,- 0), 92.9 %
Fritz 17 : 2 (+ 1,= 1,- 0), 75.0 %
Raubfisch X48e : 1 (+ 0,= 1,- 0), 50.0 %
SugaR AI 2.50 : 4 (+ 0,= 4,- 0), 50.0 %
Komodo 13.02 : 4 (+ 4,= 0,- 0), 100.0 %
Hiarcs 15.5 : 4 (+ 3,= 1,- 0), 87.5 %
RofChade 3.0 : 16 (+ 10,= 6,- 0), 81.2 %
Fat Titz 130122 : 1 (+ 0,= 1,- 0), 50.0 %
Slowchess 2.9 : 12 (+ 6,= 6,- 0), 75.0 %
Fisherov chess monk 1.2 : 32 (+ 0,= 32,- 0), 50.0 %
Revenge 3.0 : 22 (+ 10,= 12,- 0), 72.7 %
ProteusSF Piranha 220904 : 1 (+ 0,= 1,- 0), 50.0 %
Ethereal 13.88 Plus NNUE : 4 (+ 1,= 3,- 0), 62.5 %
Nebula-vortex 1.0 : 1 (+ 0,= 0,- 1), 0.0 %
Koivisto 8.16 : 2 (+ 1,= 1,- 0), 75.0 %
Berserk 10 : 4 (+ 2,= 2,- 0), 75.0 %
AI 27.0 : 3 (+ 0,= 3,- 0), 50.0 %
Vafra 12.2 Cfish : 6 (+ 2,= 4,- 0), 66.7 %
Seer 2.6 : 16 (+ 7,= 9,- 0), 71.9 %
Crystal 5 KWK : 4 (+ 0,= 4,- 0), 50.0 %
Kayra 1.7 : 36 (+ 0,= 35,- 1), 48.6 %
Berserk 20221129 : 12 (+ 3,= 9,- 0), 62.5 %
Caissa 1.4 : 6 (+ 4,= 2,- 0), 83.3 %
BrainLearn 20.1 vulkan : 2 (+ 0,= 2,- 0), 50.0 %
Stockfish 15.1 : 26 (+ 0,= 26,- 0), 50.0 %
RubiChess 20221203 : 16 (+ 10,= 6,- 0), 81.2 %
Knightx 3.6a : 2 (+ 2,= 0,- 0), 100.0 %
Igel 3.2.0 : 4 (+ 3,= 1,- 0), 87.5 %
Kookaburra 1.03a : 27 (+ 0,= 27,- 0), 50.0 %
Minic 3.32 : 2 (+ 1,= 1,- 0), 75.0 %
Little Goliath 3.16 : 6 (+ 5,= 1,- 0), 91.7 %
Viridithas 6.0.0 : 4 (+ 2,= 2,- 0), 75.0 %
Dragon 3.2 : 24 (+ 1,= 23,- 0), 52.1 %
Velvet 5.0.0 : 12 (+ 9,= 3,- 0), 87.5 %
Charisma Diamond : 10 (+ 0,= 10,- 0), 50.0 %
Minic 3.33 : 10 (+ 7,= 3,- 0), 85.0 %
Mittens 0.9 : 2 (+ 2,= 0,- 0), 100.0 %
Uralochka 3.39d : 18 (+ 10,= 8,- 0), 77.8 %
RukChess 3.0.13 NNUE2 : 2 (+ 1,= 1,- 0), 75.0 %
Seawall 20230105 : 2 (+ 2,= 0,- 0), 100.0 %
Stockfish 20230104 : 4 (+ 0,= 4,- 0), 50.0 %
Rebel 16.1 : 14 (+ 6,= 8,- 0), 71.4 %
Captain 3.1 : 2 (+ 2,= 0,- 0), 100.0 %
Eman 8.60 : 14 (+ 2,= 12,- 0), 57.1 %
Sting Black Hole 3 : 8 (+ 8,= 0,- 0), 100.0 %
Blue Marlin 15.6 : 41 (+ 2,= 38,- 1), 51.2 %
Carp 1.1.0 : 4 (+ 4,= 0,- 0), 100.0 %
Zagreus 1.1.0 : 4 (+ 4,= 0,- 0), 100.0 %
Clovis I : 4 (+ 4,= 0,- 0), 100.0 %
Raven 1.30 : 4 (+ 4,= 0,- 0), 100.0 %
Koivisto 8.17 : 8 (+ 3,= 5,- 0), 68.8 %
Peacekeeper 1.1 : 4 (+ 4,= 0,- 0), 100.0 %
Akimbo 0.1.1 : 4 (+ 4,= 0,- 0), 100.0 %
BlackCore 5.0 : 6 (+ 4,= 2,- 0), 83.3 %
Stockfish 20230114 : 12 (+ 0,= 12,- 0), 50.0 %
4ku 1.1 : 2 (+ 2,= 0,- 0), 100.0 %
Igel 3.3.0 : 8 (+ 6,= 2,- 0), 87.5 %
Inanis 1.2.0 : 4 (+ 4,= 0,- 0), 100.0 %
Koivisto 9.0 : 16 (+ 8,= 8,- 0), 75.0 %
Polyfish 230115 : 14 (+ 0,= 14,- 0), 50.0 %
Caissa 1.5 : 12 (+ 10,= 2,- 0), 91.7 %
CorChess 20230114 : 2 (+ 0,= 2,- 0), 50.0 %
Charisma Saphir : 6 (+ 0,= 6,- 0), 50.0 %
ShashChess 27.2 : 4 (+ 1,= 3,- 0), 62.5 %
CorChess 20230104 : 4 (+ 0,= 4,- 0), 50.0 %
Stockfish 20230109 : 2 (+ 0,= 2,- 0), 50.0 %
ShashChess 27.1 : 6 (+ 0,= 6,- 0), 50.0 %
4ku : 2 (+ 2,= 0,- 0), 100.0 %
Lc0 0.30.0-dag+git.19fc042 : 2 (+ 0,= 2,- 0), 50.0 %
CorChess 20230124 : 2 (+ 0,= 2,- 0), 50.0 %
Stockfish 20230125 : 4 (+ 0,= 4,- 0), 50.0 %
Viridithas 7.0.0 : 8 (+ 6,= 2,- 0), 87.5 %
Vafra 12.3 Cfish : 8 (+ 2,= 6,- 0), 62.5 %
CorChess 20230125 : 6 (+ 0,= 6,- 0), 50.0 %
Eman 8.70 : 18 (+ 0,= 18,- 0), 50.0 %
Igel 3.4.0 : 8 (+ 1,= 7,- 0), 56.2 %
Stockfish 20230202 : 4 (+ 0,= 4,- 0), 50.0 %
Polyfish 230202 : 12 (+ 1,= 11,- 0), 54.2 %
ShashChess 28 : 18 (+ 0,= 16,- 2), 44.4 %
Charisma Light 2 : 4 (+ 0,= 3,- 1), 37.5 %
CorChess 20230210 : 5 (+ 0,= 5,- 0), 50.0 %
Caissa 1.6 : 2 (+ 1,= 1,- 0), 75.0 %
Velvet 5.1.0 : 2 (+ 2,= 0,- 0), 100.0 %
Fat Fritz 2 : 12 (+ 0,= 12,- 0), 50.0 %
Redfish 220921 : 1 (+ 1,= 0,- 0), 100.0 %
Spectral 070722 : 1 (+ 1,= 0,- 0), 100.0 %
Patzer AI 020223 : 6 (+ 0,= 6,- 0), 50.0 %
Berserk 11 : 2 (+ 0,= 2,- 0), 50.0 %
Clover 3.3.1 : 2 (+ 1,= 1,- 0), 75.0 %
Caissa 1.6.3 : 4 (+ 3,= 1,- 0), 87.5 %
Rebel 16.2 : 12 (+ 7,= 5,- 0), 79.2 %
Stockfish 20230218 : 6 (+ 0,= 6,- 0), 50.0 %
Berserk 11.1 : 10 (+ 2,= 8,- 0), 60.0 %
Koivisto 9.2 : 14 (+ 9,= 5,- 0), 82.1 %
Charisma Light 1.0 : 2 (+ 0,= 2,- 0), 50.0 %
Stockfish 20230128 : 4 (+ 0,= 4,- 0), 50.0 %
CorChess 20230202 : 2 (+ 0,= 2,- 0), 50.0 %
Charisma Blitz : 4 (+ 0,= 4,- 0), 50.0 %
Ethereal 14.00 NNUE : 14 (+ 6,= 8,- 0), 71.4 %
Stockfish 20230209 : 2 (+ 0,= 2,- 0), 50.0 %
Berserk 20230130b : 2 (+ 1,= 1,- 0), 75.0 %
Charisma 250223 : 12 (+ 1,= 11,- 0), 54.2 %
CorChess 20230226 : 6 (+ 0,= 6,- 0), 50.0 %
BlackCore 6.0 : 2 (+ 2,= 0,- 0), 100.0 %
Booot 7.1 : 2 (+ 2,= 0,- 0), 100.0 %
BrainLearn 22 : 2 (+ 0,= 2,- 0), 50.0 %
YuliGM PrO 5.0 : 2 (+ 0,= 2,- 0), 50.0 %
Wasp 6.50 : 2 (+ 2,= 0,- 0), 100.0 %
Stockfish 20230227 : 4 (+ 0,= 4,- 0), 50.0 %
Clovis III : 2 (+ 2,= 0,- 0), 100.0 %
ShashChess 29 : 2 (+ 0,= 2,- 0), 50.0 %
Flounder 0.4.0.0 : 2 (+ 1,= 1,- 0), 75.0 %
SF-Solidor_PL : 2 (+ 0,= 2,- 0), 50.0 %
Leptir 280223 : 4 (+ 0,= 4,- 0), 50.0 %
Leptir Classic : 2 (+ 0,= 2,- 0), 50.0 %
BrainLearn progress:
| Engine | Rating | Score | Games | (%) |
| Brainlearn 23.1 | 3719.7 | 110.00 | 184 | 59.78 |
| BrainLearn 21.1 | 3709.0 | 546.50 | 840 | 65.06 |
| BrainLearn 19 | 3707.5 | 154.00 | 259 | 59.46 |
| BrainLearn 22 | 3705.6 | 259.00 | 435 | 59.54 |
| BrainLearn 19.2.1 | 3699.9 | 79.00 | 118 | 66.95 |
| BrainLearn 19.1 | 3697.1 | 51.00 | 84 | 60.71 |
| Brainlearn 24 | 3697.0 | 105.00 | 174 | 60.34 |
| BrainLearn 19.2 | 3696.5 | 54.00 | 78 | 69.23 |
| BrainLearn 20.2 | 3692.3 | 280.50 | 458 | 61.24 |
| BrainLearn 18 | 3690.8 | 209.00 | 336 | 62.20 |
| BrainLearn 061122 | 3688.5 | 50.00 | 96 | 52.08 |
| BrainLearn 20.1 vulkan | 3685.7 | 97.00 | 146 | 66.44 |
| BrainLearn 17 | 3680.4 | 150.00 | 264 | 56.82 |
| BrainLearn 21 | 3670.7 | 101.50 | 148 | 68.58 |
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