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Komodo 13.2.5 is out

on October 31, 2019

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Komodo 13.2.5 homepage

Komodo

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New Strong Engines Test, by Chess Engines Diary, 2024.04.12

💾 552 (!) games from the tournament download 👍 @chessenginesdiary Country - Poland, City - Malbork 🕓 Time 3'+3" 💻HP Pavilion i5-1035G1 8GB RAM 🖬 GUI-Banksia All CEDR 317.321 games download (01.04.2024 - 3'+3") HypnoS 030424, Yuli GM Pro 16, Stockfish 16.1 and ShashChess 35 . These four engines scored the same number of points and placed at the top of the table in this strong tournament. Tech table: Engine KN/move NPS dep/mov time/mov mov/game time/game fails Alexandria 6.1.0 3218 576429 30.2 5.6 56.7 316.2 Berserk 13 4779 841025 36.7 5.7 56.0 318.1 Brainlearn 28 2275 366977 31.4 6.2 43.5 269.4 Caissa 1.18 5492 923486 30.2 5.9 50.4 299.7 Clover 6.1.19 4803 854377 31.4 5.6 62.2 349.4 Cool Iris 12.10 2201 356730 27.6 6.2 51.2 315.5 CorChess 20240331 2253 372774 27.4 6.0 52.2 315.8 Crystal 8 3582 571994 20.3 6.3 47.7 298.8 Fire 9.3 5225 876565 22.0 6.0 55.5 331.1 Fisherov chess monk 1.2 3487 619728 36.0 5.6 60.4 340.0 Hyp

New chess opening book: M11.2 (bin and ctg)

We provide two opening books, in two different formats: bin and ctg. This is enough to be used in almost any chess program (GUI). Of course, every book may contain errors, but this one is based on a high rating. Happy testing! Book - CTG format Customers who wish to use the CTG format book will need a GUI capable of reading this format, ie. Chessbase GUIs. Please save the book in your book folder. We strongly recommend that you "Optimize" the book in the Book options dialog so the tournament moves are chosen. The book is very wide even in tournament mode unlike most other books. A type of book format mainly used by chess programs from Chessbase , such as Fritz, Chess Base, Komodo, FatFritz, Houdini , etc. Book - BIN format ( Used by chess GUIs Arena, Banksia and Droidfish) Binary books have some important advantages, especially for computer chess engines: space-efficient, fast on accessing and searching, more useful information. At the most simple form, they are just a

New version chess engine: Lc0 BT4

LcZero - CEDR Rating=3683 vBT4: Big transformer 4. New network architecture which builds off of BT3 by adding two types of auxiliary heads, future heads and categorical value heads. The categorical value heads predict a distribution over values of q rather than a WDL outcome distribution, and the future heads predict the moves that will be played over the next two plies. The hope is that these heads will give additional information to the net to improve training speed. We've also fixed half-precision training, so this model will be larger. BT4 training started in mid-October and is expected to take a few months. It has 15 layers with 1024 embedding size, 32 heads per layer, and 1536 emb size, for roughly a doubling in size over BT3. Individual statistics: Lc0 0.30.0 Stockfish 16 5/13 -3 13 Games Booot 7.2 6/10 +2 10 Games Critter 1.6a 8/9 +7 9 Games Dragon 3.2 4/8 +0 8 Games Stockfish 20230729 3.5/8 -1 8 Games ShashChess 33.2 3.5/8 -1 8 Games Fisherov chess monk 1.2 3/

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

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

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 normal ev

Chess engines: ChessKiss 1.8

ChessKiss - UCI engines, Thanks to the Author: Abel Belzunces v.1.8 -Lazy eval improved -Fixed some issues in pawn evaluation -New now pawn penalty when ending -Some performance gains... -New recapture extension -Pawn cache improved -Evaluation performance improved a bit -New book -Seems book moves were not very random -Some bugs fixed here and there -Now rook and knight pairs are also evaluated -Now root nodes are evaluated differently -Time for move is calculated differently Chesskiss 1.8 download

New Chess Engines Diary Rating (CEDR) - 01.01.2024

In December, there were as many as 21,617 new games. In total there are 265,714 games ! The new CEDR ranking was calculated based on these games. New Chess Engines Diary Rating (CEDR) - 01.01.2024 Chess Engines Diary Rating CEDR – 01.01.2024 generated with Ordo 0.9.9 (anchor Critter 1.6a with 3225) All 265.714 games, Time:3’+3” Minimum 250 games Pl Engine Rating Score Games (%) 1 Stockfish 20231104 3755.3 221.00 301 73.42 2 Polyfish 221009 3746.0 315.00 520 60.58 SF-Pro 17.09.2023 3742.8 378.00 606 62.38 Cool Iris 11.30 3741.8 349.00 464 75.22 3 CorChess 20231207 3741.7 202.50 318 63.68 4 ShashChess 34 3741.4 156.50 260 60.19 AbbyStein 1.5 3740.7 582.00 857 67.91 Yuli GM PrO 9.0

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Komodo 13.2.5 is out

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