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zz4032 edited this page Jul 13, 2022 · 6 revisions

The Chess.com Computer Chess Championship (CCCC) is continuously running computer chess events and is maintained by Chess.com at https://www.chess.com/computer-chess-championship.

CCC 17 Blitz: Finals

Executable Network Placement Result
v0.30.0-dev dag-bord (5e84a3) 784038 2/2 192/480

Finals Ordo evaluation:

   # ENGINE       :  RATING  ERROR  CFS(%)    W    D    L   GAMES  DRAWS(%)
   1 Stockfish    :      71     22   100.0  134  308   38     480      64.2
   2 Lc0          :       0   ----     ---   38  308  134     480      64.2

LC0 hardware and settings:

  • Hardware: 2x A100, 2x AMD EPYC 7H12, 256 cores (128 physical)
  • Non-default parameters:
    • Backend=demux
    • BackendOptions=backend=cuda-fp16,(gpu=0),(gpu=1)
    • MinibatchSize=384
    • MaxPrefetch=37
    • NNCacheSize=20000000
    • CPuct=1.988
    • CPuctBase=45669
    • CPuctFactor=3.973
    • FpuValue=0.290
    • PolicyTemperature=1.186
    • SmartPruningFactor=2.0
    • SmartPruningMinimumBatches=300
    • StrictTiming=true

CCC Rapid 2021: Finals

Executable Network Placement Result
v0.27.0-rc1 J94-100 2/2 219.5/500

Finals Ordo evaluation:

   # ENGINE       :  RATING  ERROR  CFS(%)    W    D    L   GAMES  DRAWS(%)
   1 Stockfish    :      43     22   100.0  122  317   61     500      63.4
   2 Lc0          :       0   ----     ---   61  317  122     500      63.4

LC0 hardware and settings:

  • Hardware: 2x A100, 2x AMD EPYC 7H12, 256 cores (128 physical)
  • Non-default parameters:
    • Backend=demux
    • BackendOptions=backend=cuda-fp16,res_block_fusing=true,(gpu=0),(gpu=1)
    • MinibatchSize=192
    • MaxPrefetch=48
    • MultiGather=true
    • MaxCollisionEvents=917
    • MaxCollisionVisits=1000
    • MaxOutOfOrderEvalsFactor=2.4
    • NNCacheSize=20000000
    • SmartPruningMinimumBatches=100
    • TimeManager=legacy(steepness=4.0)
    • MoveOverheadMs=1000
    • StrictTiming=true
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