Stash 37 JA - new version chess engine

Stash - UCI chess engine  Rating CEDR=3408
Author: Morgan Houppin 

Stash is a UCI-compliant chess engine developed from scratch. Preferably used

with a GUI like Arena, CuteChess, Fritz, etc.

v.37:

Bump the major version, and update copyright years.

Additionally, fix a bug affecting the sign of search scores in the tuner

when Black is the side to move.

Which binary should I choose ?

The latest release should always be the best. The different architecture builds are:

🖳  64: generic 64-bit build. Should work on all 64-bit processors of your operating system.

🖳  - x86_64: x86_64 build. Same as previous one, but enables use of the prefetch` instruction, which places RAM addresses in cache for faster access. Should work on almost all 64-bit processors.

🖳 - x86_64-modern: same as previous one, but also enables use of the popcnt` (Population Count) instruction. Should work on all > 2006 64-bit processors.

🖳  - x86_64-bmi2: same as previous one, but also enables use of the `pext` (Parallel Bit Extract) instruction. Should work on all AMD processors with Excavator arch or newer, and all Intel processors with Haswell arch or newer.

Stash 35.26 JA vs other engines:

Toga IV 1.1 JA	7.5/14	+1	14 Games
Xiphos 0.6.1 JA	7.5/14	+1	14 Games
Carp 3.0.1	4.5/12	-3	12 Games
Stockfish 16.1	2/12	-8	12 Games
Wasp 7.00	4/11	-3	11 Games
DoctorB 1.2.1 JA	10/10	+10	10 Games
Smaug 2.2.1 JA	10/10	+10	10 Games
Lifish 1.0	6/10	+2	10 Games
Counter 5.5	5.5/10	+1	10 Games
Drosophila 1.6 JA	9/9	+9	9 Games
Odonata 0.9.0	8/9	+7	9 Games
Vault 0.4.1 JA	8/9	+7	9 Games
Princhess 0.17.0	7/9	+5	9 Games
Obsidian 12.29	1.5/9	-6	9 Games
Lizard 10.4	1.5/9	-6	9 Games
BlackCore 6.0	6/8	+4	8 Games
Gogobello 3.0	4.5/8	+1	8 Games
Reckless 0.7.0	4/8	+0	8 Games
Marvin 6.3.0	3.5/8	-1	8 Games
Weiss 2.1 JA	3.5/8	-1	8 Games
Renegade 1.1.0	3/8	-2	8 Games

       

Stash 37 JA download