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Stockfish dev-20260824 - official pre-release version!

on August 25, 2026

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We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.
============================== My email: jotes@go2.pl

Halogen 16.8.0 - pre-release version chess engine

on August 25, 2026

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Stockfish 18 wins Elite Engines Test by Jörn Gronemann, 2026.08.23

on August 25, 2026

Stockfish 18 Tests by Jörn Gronemann

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Wreckless 2.0.0 - new version chess engine

on August 25, 2026

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Chess engine: SF-Poly 230826 (derived from Stockfish)

on August 25, 2026

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Coda 0.9.4 wins Swiss Tournament by Chess Engines Diary, 2026.08.25

on August 25, 2026

Coda engines tournaments

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Rating Chess Engines Diary CEDR - 01.08.2026

3842.2 - Stockfish 18 JA
3832.2 - Reckless 0.10.0
3820.2 - Integral 7 dev.322b JA
3817.0 - PlentyChess 8.0.0
3811.9 - Obsidian 16.15 SE
3811.7 - Torch 4
3808.2 - Coda 0.9.0
3799.7 - Pawnocchio 2.0
3794.1 - Alexandria 9.0.0 JA
3792.4 - Dragon 3.3
3787.3 - Stormphrax 8.0.0
3784.8 - Berserk 14 JA
3784.7 - Astra 7.0 JA
3784.1 - Cinder 0.5.0
3780.0 - Viridithas 19.0.1
3777.3 - Raphael 4.3.0
3772.4 - Triumviratus 6.0
3769.6 - Halogen 16.5.0
3769.3 - Hobbes 3.0
3767.4 - Clover 9.1

Most popular posts

New chess opening book: Perfect 2021 (abk, bin, bkt, ctg)

Opening book Perfect 2021 (abk, bin, bkt, ctg) - download

We already have the new Fritz 20 program - what does it look like and how does it work?

The purchase process for the download version on the ChessBase website took only 5 minutes. Downloading the files from the cloud was even quicker. The installation itself, which involved five large files, took maybe 7 minutes, including restarting the system and entering the serial number I received upon purchase. The start image for Fritz 20 has a strange mosaic of colors; perhaps I'll get used to it. As you can see in the second screenshot, the program interface hasn't changed much; only the icons are different (we've been using Fritz 17 until now). It looks nice, but it's no major revolution. The next two screenshots show engine management and the installation of the UCI chess engine (here, Cataphract 1.1). As you can see, there are no changes. Screenshot no. 5 shows the analysis of some position by Fritz 20 engines. The changes are minimal - it is still very legible. Finally, on screen 6 we have the engine tournament table generated by Fritz 20 . I think it is sti...

Dragon NNUE by Komodo Chess - it's free!

Dragon by Komodo Chess Larry Kaufman: We have released Dragon at komodochess.com. Dragon uses NNUE (Neural Network Updated Efficiently) technology, originally developed for the game of shogi. Komodo has a great deal of chess knowledge in its evaluation. Training an NNUE network based on this evaluation was both an advantage and a challenge, requiring experimentation with architectures and data generation of billions of positions. The reinforcement learning phase for Dragon is in its infancy, but is already showing great promise. Dragon is a huge strength improvement over 14.1, the last release, about 197 elo in MCTS mode and 189 elo in standard mode, at CCRL blitz time control on one thread based on direct matches. With four threads, the gains were 156 elo in MCTS and 170 in standard mode. The improvement is due to the embedded neural network providing much more accurate evaluation and also in some sense gaining an extra ply or so of search by “seeing” some tactics that a ...

Houdidit 6.03

Michael Byrne: It has been alleged that the chess engine Houdini 6.03 was based on part, the open source chess engine Stockfish. If true, this will allows anyone who purchased the engine access to the source under Stockfish's GPL license. I purchased the engine multiple times over the years and I am now pleased to make the source available to everyone, as it is my opinion that the allegations are true and the evidence provided is overwhelming. In addition, you will find some custom compiled versions of the engine available to all ( allowed under Stockfish's GPL license). The engine here has been renamed to Houdidit , as in guess "Who did it?" and to keep it different from the engine Mr. Houdart was selling which in my opinion was in violation of Stockfish's GPL , i.e, selling Houdini without disclosing it was based, in part, on the open source Stockfish, nor releasing its source. A full discussion of this issue may be found here: http://talkchess.com/foru...

Stockfish 250702 wins Android Chess Engines Tournament, 2025.08.03-04

Stockfish 250702 won the tournament for new versions of chess engines for Android. Rubichess 20250606 JA came in second, and CorChess 250618 came in third. Further testing will begin today. 🕓 Time 3' 💻Tablet - Smasung Galaxy TAB S6 Lite, 4GB RAM 💾 90 games from the tournament download 🖬 GUI-Chess Tournament for Android, Country - Poland, City - Malbork 💾 All CEDR games for Android 24.494 games download (3') P Engine CEDR Score (Tie) Chg +/-/= 1: Stockfish 250702 3598 15.0 / 18 112.75 -5 (+12 -0 =6) 2: Rubichess 20250606 JA 3350 14.0 / 18 103.50 +11 (+11 -1 =6) 3: CorChess 250618 3574 12.0 / 18 96.50 -32 (+9 -3 =6) 4: Saturn 1.3 JA 2400 12.0 / 18 84.00 +77 (+9 -3 =6) 5: Frozenight 7.00 JA 3218 10.5 / 18 77.00 -11 (+8 -5 =5) 6: Marvin 6.3.0 JA 3267 8.5 / 18 47.00 ...

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Chess Engines Diary - movie list

Lc0 BT4 - Lc0 0.30.0
Fisherov presentacion final
Marvin 6.0.0 - Cheng4 0.41
Game Zeus - Stockfish
Stockfish 290721 - Toltec Sambala
AI 28 0 - ShashChess GZ
Rebel 16.2 - Wasp 6 50
SFPRO 27.01.2024-Stockfish 20240117
CEDR - Logo Chess Engines
SF PRO 18.09.2024 - Stockfish 15.1
Dragon 3 3 - Stockfish 17
BigYuli GM 221024 - Stockfish 17 (1-0)
Caissa - Knightx
BigYuli GM 221024 - Stockfish 17 (0-1)
Quanticade 0.8 JA - Dog 2.5 JA for Android
Raid 3.7 TR vs Yuliana 6.0

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Chess Engine Diary - donate

Full acces to the folder: CHESS ENGINES - about 3000 files! If you do not want to wait a long time for download - donate a minimum of 15$, enter your email - you will gain full access to the folder with chess engines, games, tables, etc. My email: jotes@go2.pl

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