Arasan 26 - new version chess engine (Windows, Android, Linux)

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A new version of one of the longest-developed chess engines has been released - Arasan 25.4. The engine plays very strongly and is ranked high at 22th place in the CEDR ranking. We will start the first tests of this engine soon. 

Arasan - UCI engines Author: Jon Dart
Rating Chess Engines Diary CEDR=3668

Arasan has both a native user interface (for Windows only) and a console-based chess engine for use with Winboard or xboard. Arasan also works with Arena, another free chess interface, and with UCI-compatible programs like Fritz and Chessbase.

Arasan includes an opening "book" with over 900,000 moves.

Arasaa 26 what's new?

Changes in Arasan 26.0:

Changes to book move selection logic
Make more parameters tunable, and tune piece values and futilty parameters
GUI: fix promotion by user
Fixes for compatibility with latest bullet
Introduce 3-layer "version 8" quantized integer network, with runtime optimizations
Fixes/speedups in selfplay utility
Add some additional utility programs
Remove NUMA support
GUI: replace TrueType fonts with SVG pieces
Fix to mate distance pruning.

Arasan 25 vs other engines:
Akimbo 1.1.0 JA17/35-135 Games
Yuliana 6.010.5/32-1132 Games
Fire 1011/26-426 Games
Stockfish 1710/24-424 Games
Sting Black Hole 820/22+1822 Games
YuliGM STRONG X9.5/22-322 Games
Obsidian 14.20 SE10/21-121 Games
Patricia 4.013/20+620 Games
Igel 3.6.011/20+220 Games
Uralochka 3.42 dev77/16-216 Games
SugaR AI 2.707/16-216 Games
JigSaw 6.06.5/16-316 Games
Equisetum 1.15 JA6/16-416 Games
Tucano 1214/14+1414 Games
Texel 1.126.5/14-114 Games
Stockfish 202412226/14-214 Games
Contact 96/14-214 Games
SF-PRO 27.12.20245.5/14-314 Games
CorChess 202412224.5/14-514 Games
Heimdall 1.2.28/12+412 Games
Astra 4.17.5/12+312 Games


Other versions (GUI, Mac and Linux) on page: https://www.arasanchess.org

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To deliver high-precision engine comparisons, my hardware runs 24/7. This project relies on the support of the chess community to stay sustainable. If you appreciate the "under the hood" work I do here, a small PayPal donation goes a long way in keeping the servers humming and the data flowing.





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