Berserk - UCI chess engine ( written in C).
Author: Jay Honnold Rating CEDR=3695
v.13:
Berserk 13 is officially available!
LTC vs Berserk 12
Elo | 52.78 +- 3.25 (95%)
Conf | 60.0+0.60s Threads=1 Hash=64MB
Games | N: 20034 W: 6114 L: 3094 D: 10826
Penta | [12, 1122, 4775, 4050, 58]
http://chess.grantnet.us/test/36089/
Thanks
Berserk wouldn't be possible without Andrew Grant (Ethereal + Torch), Finn Eggers (Koivisto + Torch), and Kim Kåhre (Koivisto + Torch). They are excellent developers with an immeasurable amount of knowledge - it is a pleasure to discuss CC concepts with them and have the opportunity to work alongside them on the Torch Chess Engine.
Choosing a binary
Binaries currently require popcnt. Each binary is labeled with a standard minimum instruction set requirement. x86-64, sse2, ssse3, avx2 and avx512.
For those labeled with pext, your system requires bmi2 support. For AMD users, if you're using a Zen or Zen 2 processor, you should avoid the pext binaries as they will be slow.
If you're unsure which to use or what your processor supports
Download them all
Open them and run go depth 24
If it crashes, you can't use it.
Pick the fastest one
I highly recommend you follow the build guide in the readme to compile your own version. This will generate a native build for your machine and should be optimal as a result.
Contacting
I can be reached in the OpenBench discord if you'd like a custom binary for your system and can't compile it yourself.
Berserk 12.1 - results:
| Ethereal 14.25 | 47.5/90 | +5 | 90 Games |
| Chess-System-Tal-2 | 51/84 | +18 | 84 Games |
| RofChade 3.1 | 34/58 | +10 | 58 Games |
| Seer 2.8.0 | 33/56 | +10 | 56 Games |
| Clover 6.1 | 33.5/52 | +15 | 52 Games |
| Koivisto 9.2 | 30.5/52 | +9 | 52 Games |
| Uralochka 3.40a | 32.5/50 | +15 | 50 Games |
| RubiChess 20230918 | 25.5/44 | +7 | 44 Games |
| RubiChess 20240112 | 26/38 | +14 | 38 Games |
| AbbyStein 2.8 | 15/37 | -7 | 37 Games |
| Stormphrax 4.0.0 | 23.5/36 | +11 | 36 Games |
| Caissa 1.16 | 20.5/36 | +5 | 36 Games |
| Obsidian 10.0 | 19.5/36 | +3 | 36 Games |
| Revenge 3.0 | 24/34 | +14 | 34 Games |
| Uralochka 3.41 dev1 | 19.5/30 | +9 | 30 Games |
| Dragon 3.3 | 14/30 | -2 | 30 Games |
| Caissa 1.14.1 | 16/28 | +4 | 28 Games |
| Alexandria 5.1.0 | 16/26 | +6 | 26 Games |
| Obsidian 9.0 | 15.5/26 | +5 | 26 Games |
| Vafra 14.12.0 Stockfish | 14/24 | +4 | 24 Games |
| Crystal 7 CMB | 10.5/22 | -1 | 22 Games |
| TACTICAL 171123 | 9.5/22 | -3 | 22 Games |
| Fire 9.2 | 16/20 | +12 | 20 Games |
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