ShashChess 15.0 64-bit 4CPU Gauntlet for CCRL 40/15

[Graham Banks]

PGN - http://kirill-kryukov.com/chess/discuss ... p?id=47568

[Graham Banks]

Code: Select all

CCRL 40/15 Rating List - Custom engine selection
1199203 games played by 2756 programs, run by 23 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k.
Computed on December 19, 2020 with Bayeselo based on 1'199'203 games
Tested by CCRL team, 2005-2020, http://ccrl.chessdom.com/ccrl/4040/

Rank                 Engine                   Elo   +    -   Score  AvOp  Games
1 ShashChess 15.0 64-bit 4CPU             3535  +28  -27  76.6% -177.7   438
  Stockfish 12 64-bit 4CPU                3517  +23  -23  74.6% -159.9   627
  SugaR NN 1.1 64-bit 4CPU                3474  +16  -16  70.9% -134.3  1270
  ShashChess 8.0 64-bit 4CPU              3445  +15  -15  65.8%  -94.5  1206
  ShashChess Pro 1.0 64-bit 4CPU          3391  +33  -33  65.6%  -94.0   256

[Uri Blass]

PGN - http://kirill-kryukov.com/chess/discuss ... p?id=47568

I see 0 losses for snashchess 4 cpu.

Is it possible to beat it in CCRL?
Is there a possibility to change parameters for the opponents to make them beat snashchess in at least one game out of 32 even if it make them lose more games?

[MMarco]

They could try Lc0, it usually wins games vs Stockfish even if it ends up losing the match like at TCEC superfinal.

[Pi4Chess]

What means "general books" ? You have say 3 to 5 books already stopped at 12 moves that testers can pick up amongst ?

[Graham Banks]

What means "general books" ? You have say 3 to 5 books already stopped at 12 moves that testers can pick up amongst ?

We use generic opening books for both engines, and can choose an exit point no longer than 12 moves.
These days, I use 8 moves.