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Chess engine: Smallbrain 4.0 NNUE

 


Smallbrain - UCI engine
Author: Disservin Rating CEDR=2132

v.4.0
Release
Since version 3.0 I've primarily worked on my search and got some improvements there, like using the SEE algorithm.
I've also reduced the size of a move and thus the size of each TT Entry which gained some strength.
Changes to the NN arch have not been made. More changes can be found in the release log.

As of right now it looks like v4.0 is 3000+ elo.
Feel free to message me if you run a tournament with Smallbrain or plan to do so.

What's Changed
16 bit move by @Disservin in
razoring by @Disservin in
fix bench by @Disservin in
cleanup and stack by @Disservin in
improving variable + lower reverse fut margin by @Disservin in 
use previous eval for nullmoves by @Disservin in
staticEval >=beta nmp by @Disservin in 
history updates by @Disservin in 
dont use nullmove eval by @Disservin in 
see algorithm by @Disservin in 
movecount pruning by @Disservin in 
see move ordering by @Disservin in 
simplify ttentry by @Disservin in 
simplify move scoring by @Disservin in 
see pruning in search by @Disservin in
fix stuck search by @Disservin in
fix currentmove for nullmove by @Disservin in

First Test Smallbrain 1.1.0 - look       


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