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Chess engines: Devre 6.0 (Windows and Linux)


UCI chess engines: Devre
Author: Ömer Faruk Tutkun  Rating Chess Engines Diary CEDR=3386

Devre is an open-source UCI compatible chess engine written in C as a hobby project.The code is a bit badly written now but I'll try to make it cleaner and more efficent in my free time. Although Devre is an original chess engine written from scratch, I got great help from chessprogramming wiki , talkchess forum,stcokfish discord ,and some open-source C engines: Ethereal, Vice, CPW.

Devre - Rating CEDR progres
PlEngineRatingScoreGames%
566Devre 5.03396,3159.0040039.75
571Devre 4.03388.6237.0037163.88
936Devre 2.03160.548.006080.00
1059Devre 3.02999.219.5010019.50

v.6.0
Changes:
Correction History is added.

NNUE arch, data, and training process have changed. The new arch is (768->1536)x2->1 with SCRelu as an activation function.

A few bug fixes were made one of them was the problem of devre 5.0 poor ltc performance.
TT replacement scheme changed
Some improvements in the search.

Elo gain
Elo   | 162.22 +- 9.64 (95%)
Conf  | 40.0+0.40s Threads=1 Hash=16MB
Games | N: 2006 W: 1023 L: 149 D: 834
Penta | [3, 24, 241, 566, 169]
Thanks to the testers who tested Devre, and the chess engine developers that helped me while developing my engine.

Ömer Faruk Tutkun
Github-https://github.com/OmerFarukTutkun/Devre/releases/
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