rouhi1 / akimbo

A strong UCI Chess and Chess960 Engine.

akimbo

A strong UCI Chess and Chess960 engine written in Rust.

Ending with version 0.6.0, akimbo had a hard upper limit of 1000 lines of code, excluding blank lines and comments. Stats are included below (SLOC), but this restraint is now abandoned in favour of making a more feature-complete engine.

Huge thanks to all of the members of this OpenBench Instance who have provided support and guidance in the development of akimbo, as well as facilitating far faster testing than on my own.

Evaluation

All data used is self-generated, starting from material values when akimbo still had an HCE and iteratively generating data and tuning to produce higher quality datasets. The final HCE dataset was then used to train akimbo's first network and further data has been generated since.

Additionally, akimbo uses its own trainer written in Rust and CUDA, bullet.

Stats

Version	Release Date	SLOC	CCRL 40/15	CCRL Blitz	Notes
0.1.1	8th January 2023	1167	2468	-	First Release
0.2.0	10th April 2023	866	2524	-	-
0.3.0	16th May 2023	891	2586	-	-
0.4.0	4th July 2023	852	2725	2760	-
0.4.1	4th August 2023	948	-	2866	Final PST-only Release
0.5.0	13th August 2023	940	2994	3069	Better HCE
0.6.0	24th September 2023	898	3258	-	NNUE
0.7.0	30th October 2023	-	3312	3461	DFRC + SMP Support
0.8.0	2nd January 2024	-	TBD	TBD	-

Compiling

Run the following command

cargo rustc --release -- -C target-cpu=native

and the executable will be located in target/release.