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Tournament Info
Top15 round-robin tournament of free engines only, using Stefan Pohl's unbalanced 3-move book Chess324xxl_big+090_+119.pgn played reversed sides per pairing.

Time Control: game in 2 minutes plus 1 second increment, 2'+1"
Hardware: Intel i7 12700
CuteChess GUI: Concurrency 8 (# of P-cores)
Each engine 512MB hash, 1 thread, ponder off
Each pairing 100 openings
Adjudication: Syzygy 5-men only - no eval based adjudication.
Endgame tablebases: Syzygy 5-men.
Ratings calculated with Ordo.

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   # PLAYER               :  RATING  ERROR  POINTS  PLAYED   (%)    W     D    L  D(%)  OppAvg  CFS(%)
   1 Stockfish 18         :    3879      7  1931.0    3000  64.4  996  1870  134  62.3    3774     100
   2 Reckless 0.9.0       :    3846      7  1792.0    3000  59.7  827  1930  243  64.3    3776     100
   3 Torch 4d             :    3831      7  1725.5    3000  57.5  773  1905  322  63.5    3777      99
   4 PlentyChess 8.0.0    :    3819      7  1671.5    3000  55.7  722  1899  379  63.3    3778      54
   5 pawnocchio 2.0       :    3818      7  1669.0    3000  55.6  677  1984  339  66.1    3778     100
   6 Viridithas 20.0.0    :    3797      7  1574.0    3000  52.5  574  2000  426  66.7    3780      99
   7 Stormphrax 8.0.0     :    3785      7  1519.5    3000  50.6  514  2011  475  67.0    3780      65
   8 Cinder 0.6.1         :    3783      7  1511.0    3000  50.4  532  1958  510  65.3    3780     100
   9 Hobbes 3.0           :    3767      7  1437.5    3000  47.9  444  1987  569  66.2    3782      73
  10 Obsidian 16.0        :    3764      7  1424.0    3000  47.5  456  1936  608  64.5    3782      96
  11 Alexandria 9.0       :    3754      7  1383.0    3000  46.1  424  1918  658  63.9    3782      67
  12 Berserk 14           :    3752      7  1373.5    3000  45.8  394  1959  647  65.3    3783     100
  13 Raphael 4.2.0        :    3730      7  1277.0    3000  42.6  358  1838  804  61.3    3784      80
  14 Caissa 1.26          :    3726      7  1258.5    3000  42.0  298  1921  781  64.0    3784      92
  15 Tarnished v6.0       :    3719      7  1227.0    3000  40.9  276  1902  822  63.4    3785      52
  16 Clover 9.1           :    3719      7  1226.0    3000  40.9  280  1892  828  63.1    3785     ---

  Total: 24,000 games played by 16 programs (games available on request)
  Engine participation is at my discretion. Viewers should not infer anything from those decisions.

  White wins: 8,371 (34.88%)
  Black wins: 174 (0.72%)
  Draws: 15,455 (64.40%)
  White score: 67.08%

  Updated: 2026-08-21