Chess Engines Diary

RubiChess -  UCI chess engine, Rating JCER= 3328 (11 place) Author - Andreas Matthies v.2021. Just to get rid of what I did in 2021. Only ~15Elo in selfplay against 2.2. Look at the Changelog for an overview of all changes. Rubichess 2021 NNUE - download

Novice - UCI Chess Engine The Novice chess engine is a port of the Butter chess engine to C. v.3.1: Various important fixes to v3.01 Novice 3.1 - download

CEDR=Chess Engines Diary Rating Caissa 0.4 and  Rodent NNUE   promote to E4 Amateur League Sargon 1978 1.01, Belofte 2.1.4, Chessika 2.27 -  end test   Time 15'+10" HP Pavilion i5-1035G1 8GB RAM GUI  Arena 3.5.1 Book --- CEDR 12.324 games 26.12.2021 Table:  Scid vs PC CEDR League Tournament:   325 games

Stockfish - UCI chess engine, compiled by Stéphane Nicolet Rating CEDR=3533 (1 place) Timestamp: 1640861963 Tweak optimism with complexity This patch increases the optimism bonus for "complex positions", where the complexity is measured as the absolute value of the difference between material and the sophisticated NNUE evaluation (idea by Joost VandeVondele). Also rename some variables in evaluate() while there. passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.50> Total: 88392 W: 23150 L: 22781 D: 42461 Elo +1.45 Ptnml(0-2): 318, 9961, 23257, 10354, 306 https://tests.stockfishchess.org/tests/view/61cbbedee68b2a714b6eb110 passed LTC: LLR: 2.93 (-2.94,2.94) <0.50,3.00> Total: 37848 W: 10043 L: 9766 D: 18039 Elo +2.54 Ptnml(0-2): 26, 3815, 10961, 4100, 22 https://tests.stockfishchess.org/tests/view/61cc0cc3e68b2a714b6ec28c Bench: 4125221 Stockfish 21123011 NNUE download Stockfish 21123011 for Linux download  

Time 15'+10" Intel Core i7 7,9 GB GUI  Banksia Book --- CEDR 12.324 games 27.11.2021 CEDR Test Tournament:   30 games

This is prehistory 🙂 10 years ago:  Elimination Chess Engines Diary, 6-8.03.2011 Time: 3', Intel Celeron D CPU 3.46GHz with 2,0 GB Memory  Microsoft Windows XP Home Edition x32 GUI: Arena 3.0    All games 2011 download

Mayhem - UCI chess engine , Author:  Toni Helminen Rating CEDR=3168 (57 place) v.6.5 Lots of improvements +20 Elo Fen rule 50 fix Mayhem 6.5 download

Blunder - UCI chess engine Author: Christian Dean, Rating CEDR= 2985 (75 place) v.7.6.0 This release contains no new features, but various tweaks of existing ones that have improved Blunder's strength. History values are decreased when the move fails to raise alpha or cause a beta-cutoff, queen promotions are considered in quiescence search, pawn pushes to the 6th rank and above are no longer reduced, and late-move reductions are no longer allowed to drop the search directly into quiescence search. These changes are summarized below and resulted in a gain of around 80 Elo in self-play. Blunder 7.6.0 download

Anka is an artificial intelligence system capable of playing chess. You can use it to play chess against the computer or to analyze your games. Author Mehmet Eren Yeşilyurt  Rating CEDR=2847 Requirements Anka is a command-line only tool. You need to have a UCI compatible chess GUI program to use it comfortably. Some free options are: Arena,  Scid vs. PC,  Tarrasch. You also need a relatively modern 64-bit CPU that supports instructions like Popcnt. v.0.6.3: Added support for Syzygy tablebases using Pyrrhic Some improvements and fixes Anka 0.6.3 download

Raubfisch is an engine derived from Stockfish and Torpedo 1.1 XJR (private engine by Frank Karl Werner and Max Fehler).  Rating CEDR - 3488 (4st place) *********************************************************************************************** Warning : The network is not embedded, you must add the NNUE network with the engine in the same file. Otherwise, the engine will not work! *********************************************************************************************** Raubfisch X48b3 and GTZ27b3 NNUE - download

Game: Stockfish 14.1-Stockfish 271221 [Result "1-0"] Time 5', GUI-Banksia Partia mi si� podoba�a (Fritz 17) [Event "BanksiaStockfishMatch.28.12.2021"] [Site "Chess Engines Diary"] [Date "2021.12.30"] [Round "1.23"] [White "Stockfish 14.1"] [Black "Stockfish 271221"] [Result "1-0"] [ECO "C11"] [PlyCount "120"] [EventDate "2021.??.??"] [TimeControl "300"] 1. e4 {[%eval 50,27] 16603 12495698} e6 {[%eval 33,31] 20534 12189712} 2. d4 { [%eval 38,21] 2034 745121} d5 {[%eval 33,24] 1651 919513} 3. Nc3 {[%eval 45,24] 2520 1714996} Nf6 {[%eval 37,24] 2397 1776238} 4. e5 {[%eval 43,27] 9480 6375332} Nfd7 {[%eval 0,23] 2577 1251302} 5. f4 {[%eval 43,25] 3540 2170442} c5 {[%eval 29,28] 5631 3588801} 6. Nf3 {[%eval 51,25] 4190 2166386} Nc6 {[%eval 48,24] 6332 4062955} 7. Be3 {[%eval 55,22] 2902 2087369; C11: French, Steinitz, Boleslavsky variation} a6 {[%eval 52,20]

Time 5' HP Pavilion i5-1035G1 8GB RAM GUI  Banksia Book --- CEDR 12.324 games 27.11.2021 Table created  Scid vs PC CEDR Test Tournament:   50 games   Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes: # name nodes/m NPS depth/m time/m moves time #fails. Engine KN/move NPS depths/move time/move moves/game time/game fails Stockfish 14.1 3829 925410 32.6 4.1 56.4 233.5 Stockfish 271221 3856 930136 33.1 4.1 56.4 233.6 Our social media: Twitter   Facebook Instagram Pinterest Reddit  Tumblr VK

  Time 15'+10" HP Pavilion i5-1035G1 8GB RAM GUI  Banksia Book --- CEDR 12.324 games 27.11.2021 Table created  Scid vs PC CEDR Test Tournament:   84 games Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes: # name nodes/m NPS depth/m time/m moves time #fails. Engine KN/move NPS depths/move time/move moves/game time/game fails Dragon 2.6 19051 1169064 35.9 16.3 75.1 1223.6 Fisherov 0.98i 16902 827290 41.4 20.4 69.0 1409.7 Fisherov 0.98j 17312 869708 44.9 19.9 68.6 1366.1 Kayra 1.0 17393 853778 40.6 20.4 67.6 1377.7 Kayra 1.0 v6 20772 984571 41.5 21.1 63.0 1330.1 Stockfish 191221 20563 1038312 44.2 19.8 73.3 1451.5 SugaR AI 2.50 20489 993844 42.2 20.6 65.3 1346.0

Stockfish - UCI chess engine Chess Engines Diary Rating CEDR=3089 Stockfish 211229+ for Android - download

GAiA is a UCI chess engine built with C++ 17 and Tensorflow. It performs an in-depth analysis and uses a complex squeeze-and-excitation residual network to evaluate each chess board. GAiA 1.0.0 download

This is prehistory 🙂 10 years ago:  Elimination Chess Engines Diary, 6-8.03.2011 Time: 1'+1", Intel Celeron D CPU 3.46GHz with 2,0 GB Memory  Microsoft Windows XP Home Edition x32 GUI: Arena 3.0    All games 2011 download Our social media: Twitter   Facebook Instagram Pinterest Reddit  Tumblr VK

Time 15'+10" Intel Core i7 7,9 GB GUI - Banksia Book --- CEDR 12.324 games 27.11.2021 Table created  Scid vs PC CEDR Test Tournament:   60games  Tech (average nodes, depths, time/m per move, others per game), counted for computing moves only, ignored moves with zero nodes: # name nodes/m NPS depth/m time/m moves time #fails. Engine KN/move NPS depths/move time/move moves/game time/game fails Blue Marlin 14.6 15911 785888 46.1 20.2 82.8 1675.4 BrainLearn 15 17925 863630 49.8 20.8 85.1 1766.3 CorChess 3 081221 17376 837573 37.0 20.7 77.4 1605.7 Dragon 2.5.1 12464 711740 36.2 17.5 105.5 1848.4 Fisherov 0.98h 19300 927749 48.8 20.8 84.7 1762.0 Raubfisch X47e 16972 813960 49.0 20.9 80.2 1672.3 Our social media: Twitter   Facebook Instagram Pinterest Reddit  Tumblr VK

Tantabus - UCI chess wngine. First release of Tantabus. Tantabus is estimated to be around 2300 Elo. v .1.0.2: A quick fix to a serious bug where Tantabus could not checkmate in simple endgames. Otherwise identical to version 1.0.1. Tantabus 1.0.2 download Our social media: Twitter   Facebook Instagram Pinterest Reddit  Tumblr VK