Aku 2025.6.12 JA - new version chess engine (Windows and Linux)

Aku Chess Engine - UCI chess engine

Author: Hoa T. Vu (Hoavu-cs)

v.2025.6.12:

Just some parameter tweaks.

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Results of NewAku vs OldAku (40+0.4, 1t, 64MB, UHO_Lichess_4852_v1.epd):

Elo: 35.50 +/- 11.96, nElo: 58.84 +/- 19.67

LOS: 100.00 %, DrawRatio: 43.07 %, PairsRatio: 1.87

Games: 1198, Wins: 311, Losses: 189, Draws: 698, Points: 660.0 (55.09 %)

Ptnml(0-2): [10, 109, 258, 193, 29], WL/DD Ratio: 0.30

LLR: 2.95 (100.2%) (-2.94, 2.94) [-5.00, 0.00]

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How strong is the new version of the Aku 2015.6.12 chess engine?

The new version of the Aku 2015.6.12 chess engine has been released recently and has not been tested yet. Its playing strength will be known after the first test tournaments, results will be available on our website soon.

Aku 20152205 JA vs other engines:

Eggnog 6 dev-1cc JA	2/2	+2	2 Games
Shadowfax 1.0.1 JA	2/2	+2	2 Games
Goldfinger dev-ba5 JA	2/2	+2	2 Games
Byte-knight 3.0.0	2/2	+2	2 Games
Zeta-Dva 0402 JA	2/2	+2	2 Games
Eubos 4.0	1.5/2	+1	2 Games
Olithink 5.11.3	1/2	+0	2 Games
Critter 1.6a	0.5/2	-1	2 Games
Knightx 4.4	0.5/2	-1	2 Games
Dinora 0.3.0	0.5/2	-1	2 Games
Tarnished 2.1	0.5/2	-1	2 Games
EveAnn 3.1	0.5/2	-1	2 Games
Bagatur 5.2 JA	0/2	-2	2 Games
Illumina 3	0/2	-2	2 Games
Reckless 0.8.0 JA	0/2	-2	2 Games
Turbulence 0.0.7	0/2	-2	2 Games
Cataphract 1.1	0/2	-2	2 Games
Leorik 3.1.3 JA	0/2	-2	2 Games
Milky 0.2.0	1/1	+1	1 Games

In which chess program does the Aku 2015.6.12 engine work?

The engine started without problems in the following programs: Fritz 17 and Fritz 20, Aquarium, Arena, Banksia and Lucas chess.

Windows/Linux & Android profiled builds - Jim Ablett compiles:

Aku 2025.6.12 JA download