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: 2025/02/10: Stockfish 250205

 

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    158688  22.67%  17.37%  10.14%   74   Stockfish 250205 a512  
   2    152897  22.22%  14.91%  10.45%   75   Stockfish 17 240906  
   3    118189  13.36%  19.73%  15.34%   72   Torch 3.1 a512  
   4    101246  13.76%  18.20%  20.15%   73   Horsie 1.0 a512  
   5     85083  13.53%  11.51%  17.88%   79   Alexandria 7.1 a512  
   6     80317  09.95%  13.98%  17.66%   76   Obsidian 15.0 a512  
   7     80167  15.21%  12.97%  18.90%   79   RubiChess 240817 avx2  
   8     79493  14.90%  15.50%  21.24%   76   KomodoDragon 3.3 avx2  
   9     78281  10.99%  13.46%  18.74%   78   PlentyChess 4.0 a512  
  10     70677  13.35%  08.34%  19.03%   80   Integral 6.0 a512  
  11     66602  12.66%  09.95%  20.58%   79   Clover 8.1 avx2  
  12     59889  13.84%  07.51%  20.19%   87   Ethereal 14.38 avx2  
  13     55070  10.93%  08.98%  22.29%   81   Caissa 1.21 a512  
  14     54389  08.92%  07.77%  20.46%   82   Berserk 13 avx2  
  15     50990  12.18%  08.88%  25.58%   84   Starzix 6.0 a512  
  16     34101  07.03%  07.42%  28.33%   82   Viridithas 16.0 a512  
-------------------------------------------------------------------
*** Average length of all won games:     77 moves

   for comparison
   UHO-Top15 Ratings
--------------------------
   1 Stockfish 250205 a512
   2 Stockfish 17 240906  
   3 Torch 3.1 a512       
   4 Obsidian 15.0 a512   
   5 PlentyChess 4.0 a512 
   6 Berserk 13 avx2      
   7 KomodoDragon 3.3 avx2
   8 Caissa 1.21 a512     
   9 Alexandria 7.1 a512  
  10 Ethereal 14.38 avx2  
  11 Integral 6.0 a512    
  12 Horsie 1.0 a512      
  13 Viridithas 16.0 a512 
  14 RubiChess 240817 avx2
  15 Starzix 6.0 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]:03.51% Stockfish 250205 a512  
                                                       [2]:03.45% Stockfish 17 240906  
                                                       [3]:02.50% Horsie 1.0 a512  
                                                       [4]:01.84% Alexandria 7.1 a512  
                                                       [5]:01.79% Torch 3.1 a512  


B: Most sacrifices overall                           : [1]:22.67% Stockfish 250205 a512  
                                                       [2]:22.22% Stockfish 17 240906  
                                                       [3]:15.21% RubiChess 240817 avx2  
                                                       [4]:14.90% KomodoDragon 3.3 avx2  
                                                       [5]:13.84% Ethereal 14.38 avx2  


C: Very short wins (45 moves or less)                : [1]:01.19% Stockfish 250205 a512  
                                                       [2]:01.16% Stockfish 17 240906  
                                                       [3]:01.05% Torch 3.1 a512  
                                                       [4]:00.95% Horsie 1.0 a512  
                                                       [5]:00.91% KomodoDragon 3.3 avx2  


D: Most short wins overall                           : [1]:19.73% Torch 3.1 a512  
                                                       [2]:18.20% Horsie 1.0 a512  
                                                       [3]:17.37% Stockfish 250205 a512  
                                                       [4]:15.50% KomodoDragon 3.3 avx2  
                                                       [5]:14.91% Stockfish 17 240906  


E: Average length of all won games                   : [1]:072 Torch 3.1 a512  
                                                       [2]:073 Horsie 1.0 a512  
                                                       [3]:074 Stockfish 250205 a512  
                                                       [4]:075 Stockfish 17 240906  
                                                       [5]:076 KomodoDragon 3.3 avx2  


F: Smallest number of bad draws                      : [1]:10.14% Stockfish 250205 a512  
                                                       [2]:10.45% Stockfish 17 240906  
                                                       [3]:15.34% Torch 3.1 a512  
                                                       [4]:17.66% Obsidian 15.0 a512  
                                                       [5]:17.88% 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