Bread Engine 2.1.1 - new version chess engine

 

A new version of the chess engine has just been released – Bread Engine 2.1.1. Previous versions didn't break into the CEDR Top 64 chess engines and were ranked among amateurs. We'll see how this engine fares; the first tests will be held soon.

Bread Engine is a chess engine written in c++. It uses NNUE (efficiently updatable neural network) to evaluate positions, as well as minimax search. Bread engine does not have a GUI built in, however it supports the uci protocol, you can therefore run it on any chess GUI.

Author: Nonlinear2

What's new and key changes in the new version of the Bread Engine 2.1.1?

This is a bugfix release of version 2.1.0, and should no longer crash during games. This version should be downloaded instead of version 2.1.0.

Testing the Bread Engine 2.1.0 chess engine.

STC: 8 + 0.08 s

Elo   | 144.04 +- 4.81 (95%)

Conf  | 8.0+0.08s Threads=1 Hash=32MB

Games | N: 10034 W: 4594 L: 657 D: 4783

Penta | [23, 279, 1458, 2252, 1005]

https://nonlinear.eu.pythonanywhere.com/test/725/

LTC: 40 + 0.4 s

Elo   | 132.12 +- 4.30 (95%)

Conf  | 40.0+0.40s Threads=1 Hash=128MB

Games | N: 10010 W: 4078 L: 445 D: 5487

Penta | [7, 219, 1664, 2364, 751]

https://nonlinear.eu.pythonanywhere.com/test/726/

Bread Engine 1.6.0 vs other chess engines:

Eubos 4.1 JA	9.5/10	+9	10 Games
Critter 1.6a	5/10	+0	10 Games
Eleanor 2.0	2.5/10	-5	10 Games
Laser 1.8 beta JA	3/8	-2	8 Games
Fire 10 mingw	1/8	-6	8 Games
Artemis 17.9TR sl	0.5/8	-7	8 Games
Pawnocchio 1.8.1	0.5/8	-7	8 Games
Patricia 5.0	0.5/8	-7	8 Games
Cinder 0.3.1	0/8	-8	8 Games
Tactical Titan v4	0/8	-8	8 Games
SF-POLY 200825	0/8	-8	8 Games
Claw 1.0-M	0/8	-8	8 Games
Alexandria 8.1.2	0/8	-8	8 Games
Caissa 1.23	0/8	-8	8 Games
Stockfish dev-20250824	0/8	-8	8 Games
Halogen 14.17.0	0/8	-8	8 Games
DarkSeid 6.5 EE	0/8	-8	8 Games
Viridithas 18.0.0	0/8	-8	8 Games
Stockfish dev-20250824 Ivec	0/8	-8	8 Games
CorChess 20250824	0/8	-8	8 Games
Emerald 0.4.0	2/2	+2	2 Games

Bread Engine 2.1.1 download