Solo 2.0.0 - new version chess engine

SoloEngine - UCI chess engine

Author: Yunus Emre Yıldız

SoloEngine 2.0.0 what's new?

Might seem like nothing much changed but, the effect was huge. For the first time, after reaching CCRL 2700, Solo now uses NNUE evaluation.

I have always wanted to do this and this huge evaluation change is the only reason why Solo version 2.0.0 exist.

I have created a monster... and this is just the beginning.

Singular extensions was added. LTC Pass. by @yunusemreyldz07 in #91

NNUE was added and implemented successfully. by @yunusemreyldz07 in #92

SoloEngine 1.2.2 vs other engines:

Critter 1.6a	0/4	-4	4 games
Plisco 1.0.2	2/2	+2	2 games
August3 1.0.0	2/2	+2	2 games
Kiy 1.0	2/2	+2	2 games
AspireBot v1	2/2	+2	2 games
Laura 1.1.0	2/2	+2	2 games
Marvin-onnx 1.0.1	2/2	+2	2 games
DeepBecky 0.2	1.5/2	+1	2 games
Rusty-rival 1.0.24 rc4	1.5/2	+1	2 games
Ratsu 0.9.0	1.5/2	+1	2 games
Radiance 4.2	1/2	+0	2 games
Rapant 2025-05-28	1/2	+0	2 games
Raphael 2.3	0.5/2	-1	2 games
Rusty-rival 1.0.24 rc17	0.5/2	-1	2 games
Aconcagua 5.0.0	0.5/2	-1	2 games
Prune 3.1.0 JA	0/2	-2	2 games
Raphael 2.3 JA	0/2	-2	2 games
Gyatso 1.2.0	0/2	-2	2 games
Clockwork dev-20260128	0/2	-2	2 games
Amira 1.82 JA	0/2	-2	2 games
Caligula 4.0	0/2	-2	2 games

Solo 2.0.0 download