UHO Unofficial 124th Amateur Series (Division 1)

Discussion of computer chess matches and engine tournaments.

Moderator: Ras

Modern Times
Posts: 3835
Joined: Thu Jun 07, 2012 11:02 pm

UHO Unofficial 124th Amateur Series (Division 1)

Post by Modern Times »

Same as CCRL balanced book tournament here:
viewtopic.php?t=86129

Except:
Book SPCC UHO_2024_6mvs_+085_+094.pgn random openings played reversed sides
Double round-robin
Adjudication: Syzygy TB only - no eval based adjudication.
512MB hash for each engine
Intel i7 12700

I ran it to give the later CuteChess I just installed a good test before using it for my Chess324 Top 15.

Stats
728 games
White wins: 322 (44.23%)
Black wins: 1 (0.14%)
Draws: 405 (55.63%)
White score: 72.05%

The CCRL balanced book tournament is likely to have a draw rate in the region of 90%.

The one black win was PlentyChess as black vs RubiChess in the very last round, a 194 move marathon that ended with a Syzygy TB adjudication.

Results

Code: Select all

   # PLAYER                :  POINTS  PLAYED   (%)    W    D    L  D(%)  
   1 Stockfish 18          :    71.5     104  68.8   45   53    6  51.0  
   2 Reckless 0.9.0        :    69.0     104  66.3   40   58    6  55.8  
   3 Alexandria 9.0        :    59.0     104  56.7   28   62   14  59.6  
   4 Obsidian 16.0         :    57.0     104  54.8   26   62   16  59.6  
   5 PlentyChess 7.0.0     :    57.0     104  54.8   27   60   17  57.7  
   6 Viridithas 19.0.1     :    54.0     104  51.9   24   60   20  57.7  
   7 Halogen 16            :    51.0     104  49.0   23   56   25  53.8  
   8 Stormphrax 7.0.0      :    47.5     104  45.7   18   59   27  56.7  
   9 Integral V7           :    46.5     104  44.7   20   53   31  51.0  
  10 Caissa 1.24           :    46.0     104  44.2   15   62   27  59.6  
  11 Tarnished 5.0         :    45.5     104  43.8   15   61   28  58.7  
  12 pawnocchio 1.9        :    44.0     104  42.3   17   54   33  51.9  
  13 Clover 9.1            :    43.0     104  41.3   13   60   31  57.7  
  14 RubiChess 20240817    :    37.0     104  35.6   12   50   42  48.1