Chess engine: Sloth 1.8

Sloth  - UCI chess engine  Rating Chess Engines Diary CEDR=2433

Author: Williamguttn

Sloth is a decent UCI chess engine made with C++, although significant parts of its source code are written in a C stylish code.

Sloth is a beginner project, and can therefore not be compared/matched against other powerful engines like Stockfish. It currently uses Hand Crafted Evaluation, but there are plans to implement NNUE evaluation in the future

What is this project based on?

Sloth is based on the [BBC chess engine](https://www.chessprogramming.org/BBC) made by [Maksym Korzh (Code Monkey King)](https://www.chessprogramming.org/Maksim_Korzh). He, alongside his engine, has brought me into a whole new world of chess. And for that, I will always be grateful. Without his knowledge, none of this would be possible.

v1.8:

Improved the SEE pruning

Added cut node

Improved quiescence search

Added king distance evaluation

Added penalty for bishops and knights staying on the top/bottom ranks

Sloth 1.7 - results:

Rebel 16.3	0/16	-16	16 Games
Rice 8.0.0	0/14	-14	14 Games
Clover 6.1.19	0/12	-12	12 Games
Jet 1.2	1/11	-9	11 Games
Piglet 1.3.5	8/8	+8	8 Games
Critter 1.6a	0.5/8	-7	8 Games
HypnoS 190324	0/8	-8	8 Games
Lynx 1.4.0	0/8	-8	8 Games
Knightx 3.9	0/8	-8	8 Games
Reckless 0.6.0	0/8	-8	8 Games
SF 16.1 MPV	0/7	-7	7 Games
Marauders 3.0	0/7	-7	7 Games
Stockfish 16.1	0/7	-7	7 Games
Tcheran 2.2	2.5/6	-1	6 Games
Obsidian 12.0	0/6	-6	6 Games
Berserk 20240311	0/6	-6	6 Games
Midnight 9	0/6	-6	6 Games
Alexandria 6.1.0	0/6	-6	6 Games
Victoire 1.3.0	4/4	+4	4 Games
Ciorap-Bot 0.3	2/4	+0	4 Games
Zagreus 5.0	0.5/4	-3	4 Games

Sloth 1.8 downloadSloth 1.8 download