Chess Engines Diary

ScidCommunity is a powerful chess analysis and database program. Originally derived from Scid (Shane's Chess Information Database), it has evolved into a distinct tool with numerous enhancements and a growing community of over 1,100 users. While it maintains compatibility with the original Scid database formats, scidCommunity focuses on modern features like integrations with Lichess and Chess.com, user-requested improvements, and a streamlined experience for analysis and database management. scidCommunity is free software and is released under the GPL licence. Author: Hugh Whelan ScidCommunity v5.1.2.32

In yet another match testing the latest version of this powerful engine, Fritz 20 proved superior to Halogen 16.2.0 . The latter struggled, losing two games while managing 28 draws. CEDR   820.396 games download   (01.02.2026) 💾  Tournament  download with 30 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Fritz 20 #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3"   P Engine Score (Tie) ***** +/-/= 1: Fritz 20 16.0 / 30 224.00 =1=============1============== (+2 -0 =28) 2: Halogen 16.2.0 14.0 / 30 224.00 =0=============0============== (+0 -2 =28)

Fascinating results from the latest top chess engine tournament! Raid 6.0 took the top spot, with Artemis 27TR PrO following in second. Perhaps the biggest surprise was Reckless 0.9.0 dev-2a847427 , which secured a solid third-place finish. Stay tuned—we’ll be analyzing key games from the event in upcoming posts!   CEDR   820.396 games download   (01.02.2026) 💾  Tournament  download with 182 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Aquarium #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3"   P Engine CEDR Score (Tie) Chg +/-/= 1: Raid 6.0 3750 15.0 / 26 189.25 +18 (+5 -1 =20) 2: Artemis 27TR PrO 3751 14.5 / 26 187.25 +13 (+6 -3 =17) 3: Reckless 0.9.0 dev-2a847427 3741 14.5 / 26 183.50 +18 (+4 -1 =21) 4: HypnoS EN 2.0 3753 14.0 / 26 180.75 ...

Malika  - UCI chess engine Author: FauziAkram This small engine has already passed the first Chess Engines Diary tests and performed quite well (better than the benchmark Critter 1.6a). Malika 0.892 results: Malika 0.892 - Critter 1.6a : 1,5/2 1-0-1 (=1)  75%  +191 Malika 0.892 - Phalanx XXV JA  : 2,0/2 2-0-0 (11) 100% +1200 Malika 0.892 - Plum 7.16.0  : 2,0/2 2-0-0 (11) 100% +1200 Malika 0.892 - Prune 3.2.1  : 0,0/2 0-2-0 (00)   0% -1200 Malika 0.892 - Rusty-rival 1.0.30 rc6  : 2,0/2 2-0-0 (11) 100% +1200 Malika 0.892 - Shallow Guess 1.0.0  : 2,0/2 2-0-0 (11) 100% +1200 According to the February 2026 CCRL list, Malika 0.418 achieved an ELO rating of approximately 3211 points. Everything indicates that the current version plays much better. Our tests of the Malik 0.892 engine. The engine participated in two consecutive tests. In a large tournament (1,300 games), the engine placed 19th (out of 26 engines). Details in the entry: Sky ...

Tcheran 11.0 won the tournament for new chess engine versions. Minke 5.0.0 came in second, and Clockwork dev-20260217 came in third. The benchmark engine was, of course, Critter 1.6a .   CEDR   820.396 games download   (01.02.2026) 💾  Tournament  download with 462 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Arena #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3"   P Engine CEDR Score (Tie) Chg +/-/= 1: Tcheran 11.0 2242 40.5 / 42 788.25 +294 (+39 -0 =3) 2: Minke 5.0.0 2400 38.5 / 42 729.75 +197 (+35 -0 =7) 3: Clockwork dev-20260217 2400 36.0 / 42 637.50 +172 (+33 -3 =6) 4: Caligula 6.0 JA 2761 33.5 / 42 552.25 -29 (+31 -6 =5) 5: Kociolek 2.1 JA 2400 32.5 / 42 537.50 ...

RuthIron - UCI  Chess Engine with Rust and Python,  ML Supported Author: Emre Kalkan (Ankara/Turkey) RuthIron 21.9.5.2 what's new? Estimated Elo = 3100 (Actually I didnt expect that much increasing but it just happen :D) 60 Games against Hannibal 1.4b(3000 ELO) Rank Name Elo + - games score oppo. draws 1 RuthIron 21.9.5.2 3065 74 74 50 62% 3000 52% 2 Hannibal 1.4b 1.4b 3000 74 74 50 38% 3065 52% RuthIron 21.9.5.2 - download

Zangdar -  UCI chess engine (written in C++11). Rating Chess Engines Diary CEDR=2964 Zangdar 6.1 - what's new? Version 6 had 2 issues, one was a very stupid one , but didn't crashed to my surprise; the other one is not really a bug but could produce a memory overflow in some rare cases. Well I hope all is right now. I made a lot of tests without any problem. v.6.1.1 : Zangdar had excessive memory usage. This has now been fixed. Many thanks to Werner! Zangdar 5.00.02  vs other engines: Altair 7.2.1 JA 3/6 +0 6 games Halogen 15.5.3 2/6 -2 6 games PlentyChess 7.0.0 2/6 -2 6 games HypnoS 1.00 2/6 -2 6 games Omega 11 1.5/6 -3 6 games CorChess 20251005 1.5/6 -3 6 games Tenax 1.0 3/4 +2 4 games Superultra 2.1 JA 2.5/4 +1 4 games Alexander 6.1 2.5/4 +1 4 games Astra 6.1.1 2/4 +0 4 games RofChade 3.1 2/4 +0 4 games Dragon free 2/4 +0 4 games Equisetum 1.30 JA 2/4 +0 4 games Pawn 4.0.4 JA 2/4 +0 4 games Slowchess 2.9 1.5/4 -1 4 games Wordfish 2.70 dev-250925 1.5/4 -1 4 games Stoc...

Leptir Testpilot won a major tournament of powerful chess engines. CorChess 20260212 took second place, and Stockfish dev-20260218 took third. Over 1,000 games were played in the tournament.   CEDR   820.396 games download  (01.02.2026) 🕒🕒Time 3'+3"   Tournament  download with 1050 games   #chessenginesdiary GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every    Engine  only 1 CPU and 512 Hashtables,   Book  - 4 GM mvs,  book ,  6TBs. P Engine Score (Tie) +/-/= 1: Leptir Testpilot 72.5 / 140 5061.75 (+6 -1 =133) 2: CorChess 20260212 72.5 / 140 5057.50 (+7 -2 =131) 3: Stockfish dev-20260218 72.0 / 140 5025.50 (+5 -1 =134) 4: DarkSeid 10.3 SE 70.5 / 140 4932.00 (+1 -0 =139) 5: Kookaburra 3.11 70.5 / 140 4931.75 (+4 -...