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



New version chess engine: Lynx 0.15 (Windows, Mac, Linux)



Lynx it's written in C# (.NET 6). UCI protocol is needed.
Chess Engines Diary Rating CEDR=2048

Lynx release artifacts are self-contained and require no dependencies to be run.
However, you can also choose to build Lynx yourself.

Requirements
NET 6 SDK. You can find instructions about how to install it in yo

v.0.15
🔍 Exclude promotions from killer moves and take them into account in move ordering (#302)
🔍 Enhance depth extension on check (#313)
🔍 Increase MaxDepth default value to 128 (#292)
🔍 Add ToggleBits method and use it in Make/Unmake moves (#324)
🔍 Replace !_isFollowingPV LMR condition with !pvNode (#312)

⚡ Move to .NET 8 (#291)
⚡ Implement make/unmake move instead of allocating a new Position (#321)
⚡ Avoid passing Game.CurrentPosition reference down search methods (#322)
⚡ Change threefold repetition detection to 2 repetition detection (#296)
⚡ Use Bmi1.X64.TrailingZeroCount and Popcnt.X64.PopCount hardware intrinsics (#330)
⚡ Don't reload config on file changes (#299)
⚡ Disable NLog autoreload (#329)
⚡ Make NLog targets async  (#331)

⌛ Simplify time management (#288).
This makes this release the first cutechess-friendly one, which means no timeouts when tested with short tc (10+0.1, 8+0.08, etc.)

🐛 Fix TT probing condition and TT moves score (#298)
Non strength-winning changes:
🐛 Fix nlog concurrency issue when accessing log files (#286)
🐛 Fix overflow that was causing negative hashfull numbers in uci info commands (#307)
🐛 Fix PV table bug which keeps extra moves in PV after the move where a draw is detected (#297)
🐛 Fix illegal moves potentially sent when the previous search line is hit (#294, #295)

Individual statistics: Lynx 0.13.0 - 185 games (+  9,=  9,-167),  7.3 %
Critter 1.6a                  :   8 (+  0,=  0,-  8),  0.0 %
Asymptote 0.8                 :   1 (+  0,=  0,-  1),  0.0 %
Devel 4.0.2.3                 :   1 (+  0,=  0,-  1),  0.0 %
Barbarossa 0.6.0              :   1 (+  0,=  0,-  1),  0.0 %
Supernova 2.4                 :   1 (+  0,=  0,-  1),  0.0 %
Zevra 2.5                     :   1 (+  0,=  0,-  1),  0.0 %
Loki 3.5.0                    :   1 (+  0,=  0,-  1),  0.0 %
Cosette 5.1                   :   1 (+  0,=  0,-  1),  0.0 %
FrankyGo 1.0.3                :   1 (+  0,=  0,-  1),  0.0 %
Pawn 2021-09-22               :   1 (+  0,=  0,-  1),  0.0 %
Slowchess 2.9                 :   2 (+  0,=  0,-  2),  0.0 %
Journeyman 2.1                :   1 (+  0,=  0,-  1),  0.0 %
Anka 0.6.3                    :   1 (+  0,=  0,-  1),  0.0 %
Popochin 4.3                  :   1 (+  0,=  0,-  1),  0.0 %
FoxSEE 8.2                    :   1 (+  0,=  0,-  1),  0.0 %
Uralochka 3.37c               :   2 (+  0,=  0,-  2),  0.0 %
Blunder 8.5.5                 :   1 (+  0,=  0,-  1),  0.0 %
Nalwald 16                    :   2 (+  0,=  0,-  2),  0.0 %
Ceibo 0.9                     :   1 (+  0,=  0,-  1),  0.0 %
Dumb 1.11                     :   1 (+  0,=  0,-  1),  0.0 %
Velvet 4.1.0                  :   2 (+  0,=  0,-  2),  0.0 %
Dragon 3.1                    :   2 (+  0,=  0,-  2),  0.0 %
Revenge 3.0                   :   2 (+  0,=  0,-  2),  0.0 %
Minic 3.30                    :   2 (+  0,=  1,-  1), 25.0 %
Ethereal 13.88 Plus NNUE      :   2 (+  0,=  0,-  2),  0.0 %
Koivisto 8.16                 :   2 (+  0,=  0,-  2),  0.0 %
Uralochka 3.38c               :   2 (+  0,=  0,-  2),  0.0 %
StockNemo 5.7.0.0             :   2 (+  0,=  0,-  2),  0.0 %
Frozenight 5.1.0              :   3 (+  0,=  0,-  3),  0.0 %
Francesca 0.32                :   1 (+  0,=  0,-  1),  0.0 %
Halogen 11                    :   2 (+  0,=  0,-  2),  0.0 %
Altair 1.0.0                  :   1 (+  0,=  0,-  1),  0.0 %
Prophet 4.3                   :   1 (+  0,=  0,-  1),  0.0 %
Seer 2.6                      :   2 (+  0,=  0,-  2),  0.0 %
CDrill 2000                   :   2 (+  0,=  1,-  1), 25.0 %
Fornax 4.0                    :   1 (+  0,=  0,-  1),  0.0 %
Avalanche 1.3.0               :   2 (+  0,=  0,-  2),  0.0 %
BlackCore 3.0                 :   6 (+  0,=  0,-  6),  0.0 %
ShenYu 1.0.1                  :   1 (+  0,=  0,-  1),  0.0 %
Caissa 1.3                    :   2 (+  0,=  0,-  2),  0.0 %
Bienchen 1.0                  :   4 (+  0,=  0,-  4),  0.0 %
Sturddle 1.04                 :   2 (+  0,=  0,-  2),  0.0 %
Eubos 2.15                    :   2 (+  0,=  0,-  2),  0.0 %
Alexandria 3.0.2              :   6 (+  0,=  0,-  6),  0.0 %
Mayhem 7.7                    :   2 (+  0,=  0,-  2),  0.0 %
RubiChess 20221120            :   2 (+  0,=  0,-  2),  0.0 %
Tofiks 0.0.1                  :   2 (+  2,=  0,-  0), 100.0 %
Kimbo 1.0.0                   :   6 (+  0,=  0,-  6),  0.0 %
QuintBot 1.1.0                :   4 (+  3,=  1,-  0), 87.5 %
Stockfish 20221120            :   2 (+  0,=  0,-  2),  0.0 %
Stockfish 20221123            :   2 (+  0,=  0,-  2),  0.0 %
CorChess 20221121             :   2 (+  0,=  0,-  2),  0.0 %
Counter 5.0                   :   8 (+  0,=  0,-  8),  0.0 %
Kuma 1.0                      :  10 (+  1,=  0,-  9), 10.0 %
MadChess 3.2 beta             :   8 (+  0,=  0,-  8),  0.0 %
Princhess 0.8.0               :  10 (+  1,=  3,-  6), 25.0 %
Reksio                        :   2 (+  0,=  0,-  2),  0.0 %
Genko 1.0a                    :   2 (+  0,=  0,-  2),  0.0 %
Peacekeeper 0.11              :   4 (+  0,=  0,-  4),  0.0 %
Viridithas 5.1.0              :   4 (+  0,=  0,-  4),  0.0 %
Viridithas 5.0.0              :   2 (+  0,=  0,-  2),  0.0 %
Berserk 20221129              :   2 (+  0,=  0,-  2),  0.0 %
Caissa 1.4                    :   4 (+  0,=  0,-  4),  0.0 %
Rebel 16                      :   6 (+  0,=  0,-  6),  0.0 %
RubiChess 20221203            :   4 (+  0,=  0,-  4),  0.0 %
Alexandria 3.1.0              :   1 (+  0,=  0,-  1),  0.0 %
Avalanche 1.3.1               :   1 (+  0,=  0,-  1),  0.0 %
Viridithas 6.0.0              :   1 (+  0,=  0,-  1),  0.0 %
Jangine 2022-12-01            :   2 (+  2,=  0,-  0), 100.0 %
RukChess 3.0.13 NNUE2         :   1 (+  0,=  0,-  1),  0.0 %
Seawall 20230105              :   1 (+  0,=  0,-  1),  0.0 %
Jangine 2022-12-27            :   1 (+  0,=  1,-  0), 50.0 %
Carp 1.1.0                    :   1 (+  0,=  1,-  0), 50.0 %
Akimbo 0.1.1                  :   1 (+  0,=  0,-  1),  0.0 %
BlackCore 5.0                 :   1 (+  0,=  0,-  1),  0.0 %
Tofiks 1.0                    :   1 (+  0,=  1,-  0), 50.0 %
MagiC 2.9                     :   1 (+  0,=  0,-  1),  0.0 %
---
Lynx 0.15 download
github:https://github.com/lynx-chess/Lynx/releases/tag/v0.15.0

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