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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  1940.0    3000  64.7  1013  1854  133  61.8    3772     100
   2 Reckless 0.9.0       :    3848      7  1807.0    3000  60.2   848  1918  234  63.9    3774     100
   3 Torch 4d             :    3832      7  1740.0    3000  58.0   787  1906  307  63.5    3775      99
   4 pawnocchio 2.0       :    3820      7  1688.0    3000  56.3   703  1970  327  65.7    3776      53
   5 PlentyChess 8.0.0    :    3820      7  1686.5    3000  56.2   749  1875  376  62.5    3776     100
   6 Viridithas 20.0.0    :    3798      7  1587.5    3000  52.9   587  2001  412  66.7    3777      99
   7 Stormphrax 8.0.0     :    3786      7  1533.5    3000  51.1   528  2011  461  67.0    3778     100
   8 Hobbes 3.0           :    3768      7  1452.5    3000  48.4   471  1963  566  65.4    3779      78
   9 Obsidian 16.0        :    3764      7  1435.5    3000  47.9   463  1945  592  64.8    3779      87
  10 Alexandria 9.0       :    3758      7  1409.0    3000  47.0   451  1916  633  63.9    3780      88
  11 Berserk 14           :    3752      7  1382.0    3000  46.1   404  1956  640  65.2    3780      97
  12 Cinder 0.5.0         :    3742      7  1339.0    3000  44.6   389  1900  711  63.3    3781      99
  13 Raphael 4.2.0        :    3729      7  1280.0    3000  42.7   361  1838  801  61.3    3782      90
  14 Caissa 1.25          :    3722      7  1250.5    3000  41.7   304  1893  803  63.1    3782      72
  15 Tarnished v6.0       :    3719      7  1237.0    3000  41.2   289  1896  815  63.2    3782      58
  16 Clover 9.1           :    3718      7  1232.0    3000  41.1   290  1884  826  62.8    3782     ---

  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: 8,443 (35.18%)
  Black wins: 194 (0.81%)
  Draws: 15,363 (64.01%)
  White score: 67.19%
  Updated: 2026-08-02