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Berserk 12
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@jhonnold jhonnold released this 26 Oct 00:24
· 62 commits to main since this release
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Details

Berserk 12 is officially available!

LTC vs Berserk 11

Elo   | 81.33 +- 4.53 (95%)
Conf  | 60.0+0.60s Threads=1 Hash=64MB
Games | N: 10000 W: 3390 L: 1091 D: 5519
Penta | [7, 367, 2000, 2572, 54]
http://chess.grantnet.us/test/34166/

LTC DFRC vs Berserk 11

Elo   | 63.05 +- 4.15 (95%)
Conf  | 60.0+0.60s Threads=1 Hash=64MB
Games | N: 10000 W: 2796 L: 1001 D: 6203
Penta | [25, 423, 2514, 1808, 230]
http://chess.grantnet.us/test/34167/

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.

I would also like to give a shout out to the SweBench developers and their engines. That group is motivated, talented, and frankly hilarious. Great to have them all in CC (you're trapped now) and pushing all engines forward.

Choosing a binary

Binaries currently require popcnt. Each binary is labeled with a standard minimum instruction set requirement. 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.

Assets 9
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