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: 2025/04/24: Stockfish 250418

 

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    164987  22.74%  15.95%  09.64%   74   Stockfish 17.1 250330  
   2    161006  22.91%  15.80%  09.12%   75   Stockfish 250418 a512  
   3    114522  12.48%  17.79%  15.76%   73   Torch 3.1 a512  
   4     99354  13.77%  16.60%  20.14%   73   Horsie 1.0 a512  
   5     91078  10.82%  13.41%  16.72%   76   Obsidian 15.14 a512  
   6     82284  11.50%  13.35%  18.59%   77   PlentyChess 5.0 a512  
   7     76312  15.21%  12.64%  20.42%   79   RubiChess 240817 avx2  
   8     75096  11.62%  12.39%  19.10%   79   Alexandria 8.0 a512  
   9     73081  14.22%  14.31%  22.64%   76   KomodoDragon 3.3 avx2  
  10     66743  11.48%  09.63%  19.45%   78   Berserk 250307 a512  
  11     66331  12.11%  05.82%  19.97%   82   Integral 7.0 a512  
  12     62533  12.51%  09.19%  21.48%   79   Clover 8.1 avx2  
  13     60489  13.56%  06.86%  20.92%   88   Ethereal 14.38 avx2  
  14     52122  10.34%  09.27%  23.33%   81   Caissa 1.21 a512  
  15     45055  11.60%  07.84%  27.05%   85   Starzix 6.0 a512  
  16     41408  08.23%  07.98%  26.85%   80   Viridithas 17.0 a512  
-------------------------------------------------------------------
*** Average length of all won games:     78 moves

   for comparison
   UHO-Top15 Ranking
--------------------------
   1 Stockfish 250418 a512
   2 Stockfish 17.1 250330
   3 Torch 3.1 a512       
   4 Obsidian 15.14 a512  
   5 Berserk 250307 a512  
   6 PlentyChess 5.0 a512 
   7 Alexandria 8.0 a512  
   8 KomodoDragon 3.3 avx2
   9 Integral 7.0 a512    
  10 Caissa 1.21 a512     
  11 Viridithas 17.0 a512 
  12 Ethereal 14.38 avx2  
  13 Horsie 1.0 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]:03.49% Stockfish 250418 a512  
                                                       [2]:03.33% Stockfish 17.1 250330  
                                                       [3]:02.26% Horsie 1.0 a512  
                                                       [4]:01.58% Torch 3.1 a512  
                                                       [5]:01.40% RubiChess 240817 avx2  


B: Most sacrifices overall                           : [1]:22.91% Stockfish 250418 a512  
                                                       [2]:22.74% Stockfish 17.1 250330  
                                                       [3]:15.21% RubiChess 240817 avx2  
                                                       [4]:14.22% KomodoDragon 3.3 avx2  
                                                       [5]:13.77% Horsie 1.0 a512  


C: Very short wins (45 moves or less)                : [1]:01.20% Stockfish 250418 a512  
                                                       [2]:01.20% Stockfish 17.1 250330  
                                                       [3]:01.02% Horsie 1.0 a512  
                                                       [4]:00.92% Torch 3.1 a512  
                                                       [5]:00.87% KomodoDragon 3.3 avx2  


D: Most short wins overall                           : [1]:17.79% Torch 3.1 a512  
                                                       [2]:16.60% Horsie 1.0 a512  
                                                       [3]:15.95% Stockfish 17.1 250330  
                                                       [4]:15.80% Stockfish 250418 a512  
                                                       [5]:14.31% KomodoDragon 3.3 avx2  


E: Average length of all won games                   : [1]:073 Horsie 1.0 a512  
                                                       [2]:073 Torch 3.1 a512  
                                                       [3]:074 Stockfish 17.1 250330  
                                                       [4]:075 Stockfish 250418 a512  
                                                       [5]:076 KomodoDragon 3.3 avx2  


F: Smallest number of bad draws                      : [1]:09.12% Stockfish 250418 a512  
                                                       [2]:09.64% Stockfish 17.1 250330  
                                                       [3]:15.76% Torch 3.1 a512  
                                                       [4]:16.72% Obsidian 15.14 a512  
                                                       [5]:18.59% PlentyChess 5.0 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