Motor

[EzioMagnifico]

Motor v0.1.0
Thanks to the Author martinnovaak Martin Novák

UCI chess engine written in C++ .

Download : https://github.com/martinnovaak/motor/releases/tag/v0.1.0

Motor :
UCI chess engine written in C++ 17 with (768 -> 32) x 2 -> 1 NNUE trained with forge and tested with custom testing tool.
Currently requires Clang or GCC/MinGW compiler.
Engine contains legal movegen with kidergarten bitboards.

First release of Motor. NNUE (768 -> 32) x 2 -> 1 trained with forge .

[EzioMagnifico]

Motor v0.2.0
Thanks to the Author martinnovaak Martin Novák

UCI Chess Engine written in C++ .

Download : https://github.com/martinnovaak/motor/releases/tag/v0.2.0

New network (768 -> 64) x 2 - > 1
Mostly changes with tranposition tables. Added tt move ordering and tt into qs.
New aspiration window and lmp formulas.

Elo difference: 278.3 +/- 54.9

[JimAblett]

Motor v0.2.0 64 ja

Clang profiled Windows build.

https://drive.proton.me/urls/8W5R4C0P2M#7QEro4Av8zz1

Jim.

[EzioMagnifico]

Motor v0.3.0
Thanks to the Author martinnovaak Martin Novák

UCI Chess Engine written in C++ .

Download : https://github.com/martinnovaak/motor/releases/tag/v0.3.0

New network size: (768 -> 256) x 2 -> 1
History gravity + 1-ply conthist
New LMR changes
Improving boolean

Fixed movegen bug (enpassant with double discovery check).
Fixed search in max depth.

[EzioMagnifico]

Motor v0.4.0
Thanks to the Author martinnovaak Martin Novák

UCI chess engine written in C++ .

Download : https://github.com/martinnovaak/motor/releases/tag/v0.4.0

New network size: (768 -> 512) x 2 -> 1
SCRelu activation function
Custom AVX2 simd
SEE pruning
Singular extension + Double extensions
Soft-tm

STC:
Score of motor 0.4.0 vs motor 0.3.0: 1880 - 367 - 1653 [0.694] 3900
... motor 0.4.0 playing White: 1424 - 48 - 479 [0.853] 1951
... motor 0.4.0 playing Black: 456 - 319 - 1174 [0.535] 1949
... White vs Black: 1743 - 504 - 1653 [0.659] 3900
Elo difference: 142.2 +/- 8.4, LOS: 100.0 %, DrawRatio: 42.4 %

LTC:
Score of motor 0.4.0 vs motor 0.3.0: 525 - 93 - 532 [0.688] 1150
... motor 0.4.0 playing White: 412 - 10 - 153 [0.850] 575
... motor 0.4.0 playing Black: 113 - 83 - 379 [0.526] 575
... White vs Black: 495 - 123 - 532 [0.662] 1150
Elo difference: 137.2 +/- 14.7, LOS: 100.0 %, DrawRatio: 46.3 %
Use the AVX2 version if possible.