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Arche 0.4.6 - new version chess engine

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Arche is a UCI chess engine in Rust. Most of the effort goes into being able to tell whether a change to it helped: every change states in its commit message how much of the tree the search looks at afterwards, one that changes how the engine plays is measured in games before it merges, and one that claims to be faster states how much faster it measured. Author: Andrew What's new? Corrections to this section, written by hand after it was generated. The generated lines below are left as they were published. Two entries here print [bench 48354803] and their trees pin 47836191: "Count the iteration a budget gave up in the nodes a search reports" (3298289) and "Add an effort instrument that differences two configurations by the node" (b9325ae). Both were written on quiet futility pruning, which counts 48354803, and rebased onto the late move count before they landed. Neither moves a pin, so their bench is the late move count's 47836191. Features (search) Add an...

Peras 3.6.0 is the latest version of a powerful chess engine

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  Peras -  A strong UCI chess engine in Rust, for standard chess, Chess960 and five other variants. Author: Jesse Sissala Peras is a fascinating and powerful chess engine, with initial tests showing impressive results, as highlighted on our website. Hats off to the talented programmer from Finland. Peras 3.6.0 download

CasanChess 1.1.2 - new version chess engine

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  Casanchess -  UCI compatible chess engine written in C++. The NNUE evaluation is trained on millions of positions from auto-games and randomly generated FENs, evaluated with its own classical evaluation upto depth 7. Author: Carlos Sanchez Mayordomo  Rating CEDR=3029 CasanChess what's new? Try to fix a crash appearing at CCRL tournaments. Fix: Windows build moved from gcc to clang. MinGW-gcc sometimes generates aligned AVX instructions for unaligned memory, leading to crashes in some environments. As a side effect, clang-cl build is +20% NPS faster on my test machine. Fix: update Fathom library, fixing issues with C++20 compilations and memory misalignments. The engine behavior and strength is exactly as v1.1 (aside from Windows binary speed increase). CasanChess 1.1.2 - download

Coda 0.9.4 wins Elite Engines Test by Jörn Gronemann, 2026.09.22

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  Coda 0.9.4 took first place in the latest elite chess engine tournament, with PlentyChess 8.0.0 JA coming in second and Caissa 1.26 JA finishing third. The competition featured a total of 30 engines. CEDR 903.628 games download (30.06.2026) All Games 85.0785 CEDR from 01.09.2026 download . 🕒🕒Time 3'+3"   Tournament download with 870 games   #chessenginesdiary GPU NVIDIA  RTX 3060 ti. GUI-Myracle, For Every Engine only 1 CPU and 512 Hashtables, Book - 3 mv book,  6TBs. P Engine Score (Tie) +/-/= 1: Coda 0.9.4 37.0 / 58 990.00 (+17 -1 =40) 2: PlentyChess 8.0.0_JA 36.0 / 58 978.25 (+15 -1 =42) 3: Caissa 1.26_JA AVX2 35.5 / 58 960.50 (+14 -1 =43) 4: Viridithas 20.0.0 35.5 / 58 944.75 (+15 -2...

Ferrous 0.5.1 - new version chess engine

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  Ferrous is a brute-force calculating chess engine that plays in a local environment. The way it works is it looks through positions by generating best moves for both sides in its "mind" and determines which one is the best for it. Ferrous works on bitboards, which means it has room for massive optimizations and potential to become better than all human chess players on Earth. It's current limitation is depth 9, beyond which Ferrous cannot find a move in reasonable time. Author: Sava Ferrous what's new? better move ordering less aggressive history decay more granular late move reduction Comparison to Ferrous v0.5.0 240 games match results: 121 wins, 75 losses, 44 draw, which translates to ~67.4 elo gain Ferrous 0.5.1 download

Qapla 0.4.0 JA - new version chess engine

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  Qapla - UCI chess engine Author: Volker Böhm ( Mangar2) What's new? Qapla 0.4.0 brings two things: A good 100 Elo stronger than 0.3.2. Syzygy tablebase support. Set SyzygyPath to the directory holding the .rtbw/.rtbz files. SyzygyProbeDepth and SyzygyProbeLimit control how deep and for how many pieces the  engine probes. Binaries are PGO builds, tested on all three platforms with the compliance suite of qapla-engine-tester: Qapla0.4.0-win-x64.exe - Windows, 64 bit Qapla0.4.0-linux-x64 - Linux, 64 bit, statically linked Qapla0.4.0-macos-arm64 - macOS on Apple Silicon, new in this release All three need a CPU with popcount support, which any x86 processor of the last decade has. Jim Ablett compiles: Qapla 0.4.0 JA download

New chess engines: Pasteque 0.0.0, Surveyor-ONE.1, Zoomies 5.2, Wakwak 0.14.0

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We’ve just released another batch of new chess engine versions. Their playing strength is still unknown as initial testing is in progress, and the results will be available on our website. Pasteque is a free UCI chess engine from Ukraine. It is not a complete chess program: it needs a UCI-compatible GUI to be used. Author: Volodymyr Shcherbyna Pasteque 0.0.0 download   mirror Surveyor - UCI Chess Engine written in C++. Author: Amberg12 Surveyor-ONE.1 download     mirror Zoomies is a multi-threaded UCI chess engine with NNUE evaluation written with C#. Author: Angelo Wolff Zoomies 5.2 download     mirror Wakwak a chess engine capable of playing the DuckChess variant, hopefully well. Author: Silverrzz Wakwak 0.14.0 download   

Revolution 6.40-150926 wins New Engines Test by Chess Engines Diary, 23.09.2026

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  Revolution 6.40-150926 came out on top in the latest tournament showcasing updated chess engines, with Stockfish dev-20260922 taking second and DON dev-20260922 finishing third. The event also featured several brand-new engines, some of which will be vying for spots in the Chess Engine League (TOP-64) qualifiers. CEDR 903.628 games download (until 30.06.2026) All Games 85.078 CEDR from 01.09.2026 download . 💾 Tournament games : 506 download 💻 Asus Zenbook, AMD Ryzen 9 6900HX, RAM 32,0 GB   🖬 GUI - Myracle, book:avt-2026b #chessenginesdiary Country - Poland, City - Malbork   🕓 Time 3'+3" P Engine CEDR Score (Tie) Chg +/-/= 1: Revolution 6.40-150926 3853 36.5 / 44 686.25 +0 (+29 -0 =15) 2: Stockfish dev-20260922 3849 36.0 / 44 669.25 -4 (+28 -0 =16) 3: DON dev-20260922 3840 35.5 / 44 653.75 -9 (+27 -0 =17) 4: S...