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: 2025/06/16: RubiChess 250606 

 

See the full EAS-Statistics of Top15 (+ 2nd ratinglist containing all single-stats): here

See the full UHO Ratinglist (with full EAS-Ratinglist just down below): here

 

                                 bad  avg.win 
Rank  EAS-Score  sacs   shorts  draws  moves  Engine/player 
-------------------------------------------------------------------
   1    159557  22.02%  16.52%  09.76%   74   Stockfish 17.1 250330  
   2    153710  22.29%  15.55%  10.43%   75   Stockfish 250525 a512  
   3    106887  13.25%  17.51%  18.46%   74   Horsie 1.1 a512  
   4    106643  11.82%  17.67%  16.62%   73   Torch 3.1 a512  
   5    104774  16.77%  13.42%  15.33%   75   Berserk 250606 a512  
   6    100171  13.20%  15.33%  15.48%   76   Obsidian 16.0v a512  
   7     91529  12.25%  16.13%  17.73%   75   PlentyChess 6.0 a512  
   8     76026  11.22%  13.32%  19.87%   78   Alexandria 8.0 a512  
   9     73112  12.96%  12.84%  18.48%   81   RubiChess 250606 a512  
  10     69083  14.37%  14.76%  23.67%   76   KomodoDragon 3.3 avx2  
  11     68283  12.05%  07.49%  20.74%   81   Integral 7.0 a512  
  12     66183  14.97%  09.47%  22.51%   83   Motor 0.90 avx2  
  13     62436  10.46%  10.31%  22.15%   78   Reckless 250521 a512  
  14     61891  10.18%  10.53%  22.97%   80   Caissa 1.22 a512  
  15     58101  14.78%  07.85%  21.94%   87   Ethereal 14.38 avx2  
  16     38593  07.56%  09.71%  27.71%   80   Viridithas 17.0 a512  
-------------------------------------------------------------------
*** Average length of all won games:     77 moves

   for comparison
   UHO-Top15 Ranking
--------------------------
   1 Stockfish 250525 a512
   2 Stockfish 17.1 250330
   3 Torch 3.1 a512       
   4 Obsidian 16.0v a512  
   5 Berserk 250606 a512  
   6 PlentyChess 6.0 a512 
   7 Alexandria 8.0 a512  
   8 KomodoDragon 3.3 avx2
   9 Caissa 1.22 a512     
  10 Integral 7.0 a512    
  11 Reckless 250521 a512 
  12 Viridithas 17.0 a512 
  13 Horsie 1.1 a512      
  14 RubiChess 250606 a512
  15 Ethereal 14.38 avx2  
  16 Motor 0.90 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]:03.74% Stockfish 250525 a512  
                                                       [2]:03.25% Stockfish 17.1 250330  
                                                       [3]:02.03% Horsie 1.1 a512  
                                                       [4]:01.83% Berserk 250606 a512  
                                                       [5]:01.70% Obsidian 16.0v a512  


B: Most sacrifices overall                           : [1]:22.29% Stockfish 250525 a512  
                                                       [2]:22.02% Stockfish 17.1 250330  
                                                       [3]:16.77% Berserk 250606 a512  
                                                       [4]:14.97% Motor 0.90 avx2  
                                                       [5]:14.78% Ethereal 14.38 avx2  


C: Very short wins (45 moves or less)                : [1]:01.13% Stockfish 250525 a512  
                                                       [2]:01.10% Stockfish 17.1 250330  
                                                       [3]:00.86% Horsie 1.1 a512  
                                                       [4]:00.77% Torch 3.1 a512  
                                                       [5]:00.70% Alexandria 8.0 a512  


D: Most short wins overall                           : [1]:17.67% Torch 3.1 a512  
                                                       [2]:17.51% Horsie 1.1 a512  
                                                       [3]:16.52% Stockfish 17.1 250330  
                                                       [4]:16.13% PlentyChess 6.0 a512  
                                                       [5]:15.55% Stockfish 250525 a512  


E: Average length of all won games                   : [1]:073 Torch 3.1 a512  
                                                       [2]:074 Horsie 1.1 a512  
                                                       [3]:074 Stockfish 17.1 250330  
                                                       [4]:075 Berserk 250606 a512  
                                                       [5]:075 PlentyChess 6.0 a512  


F: Smallest number of bad draws                      : [1]:09.76% Stockfish 17.1 250330  
                                                       [2]:10.43% Stockfish 250525 a512  
                                                       [3]:15.33% Berserk 250606 a512  
                                                       [4]:15.48% Obsidian 16.0v a512  
                                                       [5]:16.62% Torch 3.1 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