Chess Engines Diary

Hlamnick 080126 won another tournament of strong chess engines. HypnoS 120126 took second place, and CorChess 20260108 took third. This is the last tournament before we publish the new CEDR 02/2026 chess engine rankings. CEDR  804.617 games download  (01.01.2026) GPU NVIDIA  RTX 3060 ti. GUI-Banksia, For Every    Engine  only 1 CPU and 512 Hashtables,   Book  - 4 GM mvs   book,  6TBs. 🕒🕒Time 3'+3"   Tournament  download with 816 games   #chessenginesdiary P Engine Score (Tie) +/-/= 1: Hlamnick 080126 50.0 / 96 2394.00 (+4 -0 =92) 2: HypnoS 120126 50.0 / 96 2392.25 (+4 -0 =92) 3: CorChess 20260108 49.0 / 96 2348.50 (+2 -0 =94) 4: Killfish PB 260126 49.0 / 96 2346.75 (+3 -1 =92) 5: Stockfish dev-20260128 48.5 / 96 2325.50 ...

  Minke 4.0.0 won another tournament featuring the latest chess engine versions. Two different versions of Clockwork took second and third place. Having outperformed the 'benchmark' engine, Critter 1.6a , both will now move on to the qualifying rounds of the CEDR Chess Engine League (TOP-64). CEDR   804.617 games download   (01.01.2026) 💾  Tournament  download with 132 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) Perf Chg +/-/= 1: Minke 4.0.0 2400 20.0 / 22 188.00 2840 +108 (+19 -1 =2) 2: Clockwork 20260128 2400 18.5 / 22 163.75 2741 +92 (+17 -2 =3) 3: Clockwork 20260130 2400 18.5 / 22 162.25 2741 +92 (+16 -1 =5) 4: Critter 1.6a 3230 16.5 / 22 134.25 3073 -31 (+14 -3 =5) 5: ...

  Stockfish 18 is here! Today, we have the pleasure of announcing Stockfish 18, a new major release. As always, you can freely download it at stockfishchess.org/download and use it as a drop-in replacement in the GUI of your choice to benefit from stronger play and more accurate analysis. Whether you can spare hours or days of CPU time, your help matters for the ongoing development of Stockfish. Find out how you can help at stockfishchess.org/get-involved. Join our Discord server to get in touch with the community of developers and users of the project! Quality of chess play In tests against Stockfish 17, this new release brings an Elo gain of up to 46 points, and wins four times as many game pairs as it loses. Quality improved throughout, including in Fischer Random Chess. Stockfish is stronger than any human, even when running on older or low-end hardware. On the highest-end hardware, where Stockfish can search over 500 million positions per second, it continues to dominate chess...

Wordfish 4.0.1 260126 won the Elite Chess Engines tournament. Artemis 26.3TR PrO took second place and DarkSeid 7.8 EE took third. LCzero finished last. CEDR   804.617 games download   (01.01.2026) 💾  Tournament  download with 180 games 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB  🖬 GUI - Aquarium #chessenginesdiary Country - Poland, City -  Malbork   🕓 Time 3'+3" Pl Engine CEDR Score (Tie) Perf Chg +/-/= 1: Wordfish 4.0.1 260126 3700 20.5 / 36 362.50 3780 +43 (+6 -1 =29) 2: Artemis 26.3TR PrO 3752 20.0 / 36 347.50 3767 +7 (+4 -0 =32) 3: DarkSeid 7.8 EE 3756 19.5 / 36 342.75 3752 -4 (+6 -3 =27) 4: DON dev-20260127 3697 19.0 / 36 331.50 3751 +29 (+4 -2 =30) 5: Stockfish 17.1 3746 18.5 / 36 328.75 3732 -7 (+3 -2 =31) 6: HypnoS EN 1.0 3754 18.5 / 36 324.75 3731 -...

Halogen - UCI chess engine. The engine is constantly being developed by the author, and the latest stable version has risen to 15th place in the CEDR rankings. We will be testing this version soon. Author: Kieren Pearson  Rating Chess Engines Diary CEDR=3683 Halogen 15. what's new? Elo gaining patches: Apply 4-ply continuation history for quiet move ordering by @KierenP in #695 Increase RFP margin for positions with active threats that need to be resolved by @KierenP in #696 SPSA LTC tune by @KierenP in #697 Add Continuation Correction History by @KierenP in #698 Threat history should consider all threats, on both from and to square by @KierenP in #699 Include Knight capture Bishop as a threat for threat calculations by @KierenP in #700 Reduce search depth on root fail high by @KierenP in #701 Apply double negative extensions for non-singular cut ndoes by @KierenP in #702 Apply double negative extensions to near multi-cut nodes by @KierenP in #703 SPSA LTC tune by @Ki...