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Clockwork dev-20261025 - new version chess engine

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Clockwork - UCI chess Engine Author: The Clockwork team  Rating Chess Engines Diary CEDR=3441 This is the latest version of the Clockwork engine. It is currently competing in the qualifying rounds of the TOP-64 Chess Engine League, where it scored 5.5/11 in the February 2026 edition. Although subsequent versions are getting stronger, the next edition in March 2026 is expected to be more successful. Clockwork what's new? Use a united cosine scheduling for tuning (#433) Might be worth trying to add back the tuning groups. Passed STC: ``` Test  | cos_schedule Elo   | 1.38 +- 1.07 (95%) SPRT  | 8.0+0.08s Threads=1 Hash=16MB LLR   | 2.95 (-2.94, 2.94) [0.00, 3.00] Games | N: 140104 W: 37465 L: 36907 D: 65732 Penta | [1862, 16687, 32323, 17391, 1789]``` https://ob.cwchess.org/test/1667/ Passed LTC: ``` Test  | cos_schedule Elo   | 1.91 +- 1.52 (95%) SPRT  | 40.0+0.40s Threads=1 Hash=64MB LLR   | 2.96 (-2.94, 2.94) [0.00, 3.00] ...

Sapling 2.0.0 - new version chess engine

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Sapling , a  strong dotnet UCI Chess engine [BETA].  Author: Tim Jones  Rating CEDR=3494 Sapling is still in active development so expect certain features to be missing or experimental. Also the current release is using a NNUE net trained from self play starting with random weights and is only 13 iterations deep, expect the engine to be much stronger in the coming days as the training does takes a while. Requirements - Sapling makes use of hardware intrinsics to improve performance. Currently your CPU must support: `Avx2`, `Bmi1`, `Bmi2`, `Popcnt`, `Sse`. Most modern hardware shipped after 2013 should be supported. - The releases come with a bundled version of the dotnet runtime, however if you want to run from source you'll need the dotnet 8 SDK installed. Sapling - what's new? Updated the NNUE network and tiled accumulator refresh. Tuned search, including depth gates, pruning, extensions, and threat/continuation history. Added calibrated human-style play and a browser-b...

Stockfish dev-20261024 - official pre-release version!

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Official prerelease  Stockfish dev-20260922 Rating Chess Engines Diary CEDR= 3912 Great news for chess enthusiasts!  The pre-release version of Stockfish dev-20260922 , widely recognized as the world's top chess engine, has been released. We’re now one step closer to the next official release. Our team is excited to kick off testing today, and we’ll post the results on our website.  Stay tuned! Stockfish dev-20261024 download       Here are some sample tournament wins for the Stockfish engine on Android and Windows:: Stockfish dev-20250513 wins Android Chess Engines Tournament, 18.05.2025 Stockfish 250425 wins Strong Engines Tournament (Tests by Jörn Gronemann, 2025.05.04) Stockfish dev-20250519 wins Chess Engines Tournament for MacOS, Chess Engines Diary, 2025.06.16 , Stockfish dev-20250602 wins New Chess Engines Test, 11-13.06.2025 , Stockfish dev-20250602 wins New Engines Test, 16-17.06.2025 ,

DON dev-20261025 - new version chess engine

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  DON   - UCI chess engine Author: Ehsan Rashid   Rating Chess Engines Diary CEDR=3873 DON is a free UCI chess engine. It is not a complete chess program and requires some UCI-compatible GUI (e.g. XBoard with Polyglot, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) in order to be used comfortably.  DON what's new? Precompiled binaries of the latest DON development version, built automatically on every commit. DON dev-20260116 vs other engines: Revolution 4.50 160126 5.5/10 +1 10 games CorChess 20260108 5/10 +0 10 games Stockfish dev-20260115 5/10 +0 10 games Esox III 5/10 +0 10 games HypnoS 241225 5/10 +0 10 games JigSaw 7.00 SuPreme 5/10 +0 10 games Kookaburra 3.11 5/10 +0 10 games Artemis 26.1TR PrO 5/10 +0 10 games Raid 5.3 5/10 +0 10 games ShashChess 40 5/10 +0 10 games Stockfish 17.1 5/10 +0 10 games Tactical Titan 6.0 PrO 4.5/10 -1 10 games DarkSeid 7.7 EE 4.5/10 -1 10 games StockfishMZ 121225 4.5/10 -1 10 games Brainlearn 31 4/9 -1 9 g...

Private19sf 3.20_VICE wins Elite Engines Test by Chess Engines Diary, 24.10.2026

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  Private19sf 3.20_VICE came out on top in the latest Elite Chess Engine Tournament, while Stockless 0.8.9 and SF-POLY 181026 shared second and third place. The newly released engine Ravager 3 also delivered an impressive performance. CEDR 903.628 games download (until 30.06.2026) All Games 72.725 CEDR from 01.10.2026 download . 💾 Tournament games : 910 download 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB   🖬 GUI - GUI - Myracle, book:avt-2026b #chessenginesdiary Country - Poland, City - Malbork   🕓 Time 3'+3" Pl Engine Points % W-L-D 1 Private19sf 3.20_VICE 80.0/130 61.5 +31-1=98 2 Stockless 0.8.9 79.5/130 61.2 +30-1=99 3 SF-POLY 181026 79.5/130 61.2 +29-0=101 4 Hlamnick 181026 78.0/130 60.0 +26-0=104 5 Stockfish dev-20260922 77.5/130 59.6 +26-1=103 6 Triumviratus 8.0 76.5/130 58.8 +23-0=107 ...