Stefan Pohl Computer Chess

Home of famous UHO openings and EAS Ratinglist


The Engine Aggressiveness Score Ratinglist

 

The world's first engine-ratinglist not measuring strength of engines, but engines's style of play !!!

 

"Elo is not the end to the means, playing style is, and Stefan's EAS tool is still the best around to measure aggressiveness." - Ed Schroeder (Computerchess legend, author of Rebel engine and famous chesscomputers (Mephisto MM IV, Polgar, Milano, Risc and many more!)), 2024

 

 

The EAS-Score is calculated by my Engines Aggressiveness Statistics Tool out of the games of the gamebase of the UHO-Top15 Ratinglist (main-site) (120000 played games overall). Download the tool here

Meanwhile, the scoring-system of the EAS-Tool got really complex, click here and read the EAS-Scoring explanation.

Here the EAS-ratinglist and at the right side (for comparison), the engines and their normal ranking in my UHO-Top15 Ratinglist (see main-site).

 

Latest update: 2025/01/17: Stockfish 250112

 

See the full EAS-Statistics (2nd ratinglist is below the EAS-ratinglist with all stats): here

 

                                 bad  avg.win 
Rank  EAS-Score  sacs   shorts  draws  moves  Engine/player 
-------------------------------------------------------------------
   1    164812  23.43%  15.07%  09.16%   75   Stockfish 250112 a512  
   2    153484  21.51%  14.55%  10.61%   75   Stockfish 17 240906  
   3    111827  12.56%  17.38%  15.45%   74   Torch 3 popavx2  
   4    103160  13.24%  17.42%  20.53%   73   Horsie 1.0 a512  
   5     95550  12.86%  13.31%  16.66%   77   Obsidian 14.11 a512  
   6     82969  14.70%  15.49%  20.77%   76   KomodoDragon 3.3 avx2  
   7     80510  15.97%  12.46%  18.79%   79   RubiChess 240817 avx2  
   8     80241  13.52%  10.70%  18.11%   80   Alexandria 7.1 a512  
   9     78561  08.30%  15.53%  18.44%   77   PlentyChess 3.0 a512  
  10     75627  13.35%  07.71%  18.84%   81   Integral 6.0 a512  
  11     65589  12.44%  09.58%  20.65%   80   Clover 8.1 avx2  
  12     60084  13.87%  06.81%  20.05%   88   Ethereal 14.38 avx2  
  13     55100  08.93%  07.06%  20.59%   82   Berserk 13 avx2  
  14     54915  10.94%  08.67%  22.27%   81   Caissa 1.21 a512  
  15     50138  11.89%  07.83%  25.90%   85   Starzix 6.0 a512  
  16     40620  07.66%  07.74%  27.30%   81   Viridithas 15.0 a512  
-------------------------------------------------------------------
*** Average length of all won games:     78 moves

   for comparison
   UHO-Top15 Ranking
--------------------------
   1 Stockfish 250112 a512
   2 Stockfish 17 240906  
   3 Torch 3 popavx2      
   4 Obsidian 14.11 a512  
   5 Berserk 13 avx2      
   6 KomodoDragon 3.3 avx2
   7 Caissa 1.21 a512     
   8 Alexandria 7.1 a512  
   9 PlentyChess 3.0 a512 
  10 Ethereal 14.38 avx2  
  11 Integral 6.0 a512    
  12 Horsie 1.0 a512      
  13 RubiChess 240817 avx2
  14 Starzix 6.0 a512     
  15 Viridithas 15.0 a512 
  16 Clover 8.1 avx2   


EAS single statistics Highscores (Top 5 Engines)

 

Mention, all EAS-Stats are percent-values, not absolute numbers. So, a weaker engine (with much fewer wins than (for example) Stockfish), can achieve high EAS-Stats and Highscores, too...

A: Most high-value sacrifices (3+ pawnunits)         : [1]:03.72% Stockfish 250112 a512  
                                                       [2]:03.23% Stockfish 17 240906  
                                                       [3]:02.43% Horsie 1.0 a512  
                                                       [4]:01.94% Alexandria 7.1 a512  
                                                       [5]:01.73% Obsidian 14.11 a512  


B: Most sacrifices overall                           : [1]:23.43% Stockfish 250112 a512  
                                                       [2]:21.51% Stockfish 17 240906  
                                                       [3]:15.97% RubiChess 240817 avx2  
                                                       [4]:14.70% KomodoDragon 3.3 avx2  
                                                       [5]:13.87% Ethereal 14.38 avx2  


C: Very short wins (45 moves or less)                : [1]:01.11% Stockfish 17 240906  
                                                       [2]:01.08% Torch 3 popavx2  
                                                       [3]:00.99% Stockfish 250112 a512  
                                                       [4]:00.99% Horsie 1.0 a512  
                                                       [5]:00.82% RubiChess 240817 avx2  


D: Most short wins overall                           : [1]:17.42% Horsie 1.0 a512  
                                                       [2]:17.38% Torch 3 popavx2  
                                                       [3]:15.53% PlentyChess 3.0 a512  
                                                       [4]:15.49% KomodoDragon 3.3 avx2  
                                                       [5]:15.07% Stockfish 250112 a512  


E: Average length of all won games                   : [1]:073 Horsie 1.0 a512  
                                                       [2]:074 Torch 3 popavx2  
                                                       [3]:075 Stockfish 17 240906  
                                                       [4]:075 Stockfish 250112 a512  
                                                       [5]:076 KomodoDragon 3.3 avx2  


F: Smallest number of bad draws                      : [1]:09.16% Stockfish 250112 a512  
                                                       [2]:10.61% Stockfish 17 240906  
                                                       [3]:15.45% Torch 3 popavx2  
                                                       [4]:16.66% Obsidian 14.11 a512  
                                                       [5]:18.11% Alexandria 7.1 a512  


 

The EAS-tool is based on my Sacrifice Games Search Turbo Tool. Use this tool for searching games with sacrifices, only. It is extremly fast and allows to search big pgn-databases very quickly. Download it right here