Chess Engines Diary

  TACTICAL is a clone engine of SF it uses the Tactical code that Mr. Zerbinati. Rating CEDR=3725 The difference is that it's built on Vondele's idea. Generates experience file and accepts bin and CTG opening books. Tactical - rating CEDR progres: Pl Engine Rating Score Games % 91 TACTICAL 010823 3725.0 208.50 344 60.61 110 Stockfish_Tactical 3723.0 40.00 62 64.52 117 TACTICAL 110823 3722.2 55.00 94 58.51 145 TACTICAL 070823 3720.0 48.00 94 51.06 217 TACTICAL 220823 3715.4 128.50 224 57.37 270 TACTICAL 240723 3712.4 58.50 98 59.69 326 TACTICAL 120723 3707.2 78.50 122 64.34 451 TACTICAL 160723_m 3683.9 41.50 54 76.85 TACTICAL 280923  download

Leorik - UCI chess engine Author-Thomas Jahn   Rating CEDR=2829 v.2.5 Leorik 2.5 includes a number of new features and improvements that boost it's playing strength by approximately 100 Elo. Here are some of the key updates: Open-Source: Leorik's source and binaries are now shared under the permissive MIT License. .Net 8 Migration: The engine has migrated from .Net 6 to .Net 8 for better performance and compatibility with the latest .Net features. Faster Move Generation: Leorik now employs a faster move generator based on PEXT by default but also includes the previous and other sliding-piece move generators, that are selectable via compiler define. Advanced Piece-Square Values: Leorik 2.5 replaces the standard PSQTs with linear functions that calculate the piece-square values using 18 parameters reflecting the positions of both kings and the game phase. Computing these formulas on the fly at acceptable speed requires AVX2 hardware support. AVX2 256bit wide registers allow the

CorChess is a clone of Stockfish maintained for better performance on long time controls, trying at least partially to fill the gap between regular tests and demands of correspondence players. Thanks to the Author Ivan Ivec Rating CEDR=3479 Individual statistics:  CorChess 210220 - 60 games (+ 22,= 34,-  4), 65.0   % Brainfish 20180423            :   2 (+  0,=  2,-  0), 50.0 % Honey X5i                     :   2 (+  0,=  2,-  0), 50.0 % Stockfish 10                  :   2 (+  0,=  1,-  1), 25.0 % Godel 6                       :   2 (+  2,=  0,-  0), 100.0 % Komodo 10                     :   6 (+  1,=  5,-  0), 58.3 % Senpai 2.0                    :   2 (+  2,=  0,-  0), 100.0 % Corchess 20180425             :   2 (+  0,=  2,-  0), 50.0 % Laser 1.7                     :   2 (+  1,=  1,-  0), 75.0 % Brainfish 210220              :   6 (+  3,=  3,-  0), 75.0 % Combusken 211115              :   2 (+  2,=  0,-  0), 100.0 % AsmFish 20181204              :   2 (+  0,=  2,-  0), 50.0 % Ige

Berserk - UCI chess engine (  written in C). Author:  Jay Honnold  Rating CEDR=3349 Individual statistics: Berserk 8.5 - 91 games (+ 54,= 27,- 10), 74.2 % Demolito 21-10-2021           :   2 (+  2,=  0,-  0), 100.0 % Ditto 1.0a                    :   4 (+  0,=  4,-  0), 50.0 % Igel 3.0                      :   2 (+  1,=  1,-  0), 75.0 % Toga II 4.01                  :   2 (+  2,=  0,-  0), 100.0 % Mayhem 6.8                    :   2 (+  2,=  0,-  0), 100.0 % Spider 1.1c                   :   2 (+  0,=  2,-  0), 50.0 % Fisherov 0.98b4               :   8 (+  0,=  7,-  1), 43.8 % Stockfish 14                  :   2 (+  0,=  1,-  1), 25.0 % Winter 0.9.7                  :   2 (+  2,=  0,-  0), 100.0 % Blunder 7.6.0                 :   4 (+  4,=  0,-  0), 100.0 % Ethereal 13.56                :   2 (+  1,=  1,-  0), 75.0 % Counter 3.9                   :   2 (+  1,=  0,-  1), 50.0 % Arasan 23.0.1                 :   6 (+  6,=  0,-  0), 100.0 % Koivisto 8.20                 :   4 (+  1,= 

Altair   is a uci chess engine that succeeds my old python engine Antares. Rating CEDR=2701  author:  Alexander Tian v.5.0.0: This is the fifth and final HCE (Hand Crafted Evaluation) version of Altair. The next planned release will introduce Neural Networks. Altair has experienced a large rewrite of its board representation, move generation, and evaluation in order to incorporate bitboards in this version. Along with the introduction of bitboards, Altair has had many search patches which contribute to its strength improvements. Altair 5.0.0 for Android download See also: Altair 5.0.0 for Windows

Since some readers asked for tests on older computers, today's tournament on a 10-year-old computer. It was cleaned and updated by our collaborator Tedi. 💾   380 games from the tournament download   @chessenginesdiary 🕓 Time 3'+3" 💻Acer Aspire E1-570, Intel Core i3-3217U 3,9 GB Memory Windows 10 🖬 GUI-Arena Country - Poland, City -  Malbork 💾 All CEDR games  175.973 games download (3'+3")   P Engine CEDR Score Chg +/-/= 1: TACTICAL 150923 3725 34.5 / 38 +49 (+31 -0 =7) 2: SugaR AI SE 3701 30.0 / 38 +11 (+22 -0 =16) 3: Sun SE 3712 30.0 / 38 +11 (+22 -0 =16) 4: Stockfish 20230911 Ivec 3729 29.5 / 38 +4 (+21 -0 =17) 5: Stockfish 23092217 3743 29.0 / 38 -8 (+22 -2 =14) 6: Corchess 20230911 3756 28.5 / 38 -15 (+21 -2 =15) 7: Cool Iris 11.20