4ku 2.0

[GediminasMasaitis]

4ku is an open source C++ engine designed to fit into 4,096 bytes.
4ku v1.1 has a CCRL 40/15 strength of 2552, and finished second in the TCEC S23 4K bonus match.

v2.0 vs v1.1 at 10+0.1s:
Score of 4ku-2.0 vs 4ku-1.1: 1659 - 373 - 968 [0.714] 3000
... 4ku-2.0 playing White: 1012 - 97 - 391 [0.805] 1500
... 4ku-2.0 playing Black: 647 - 276 - 577 [0.624] 1500
... White vs Black: 1288 - 744 - 968 [0.591] 3000
Elo difference: 159.2 +/- 10.7, LOS: 100.0 %, DrawRatio: 32.3 %

Source code, releases, and further information can be found at https://github.com/kz04px/4ku

[Gabor Szots]

Thanks for the new version. I have just started a tournament for the CCRL blitz list. With a little luck it may finish before this week's update.

[Dariusz]

Strong despite its small size. Congratulations to the author!


Standards version played on a MacBook Pro M1.

https://www.chessengeria.com/post/4ku-2-0-released