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
"Very cool! I like the EAS-Tool. Also the game selection was awesome!" - GM Vidit Gujrathi (world ranking #26, Indian Chess Olympiad gold medalist in 2024), 2025/07/28 on Lc0-discord
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 EAS-Tool here
Meanwhile, the scoring-system of the EAS-Tool got really complex, click here and read the EAS-Scoring explanation.
Latest update: 2026/06/22: Quantcade 260617
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): her
early bad avg.win
Rank EAS-Score sacs sacs shorts draws moves Engine/player
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1 264444 21.89% 30.36% 22.27% 10.32% 73 Stockfish 260614
2 249627 20.98% 32.68% 23.87% 12.90% 72 Torch 4d a512
3 244247 22.13% 33.21% 20.56% 11.75% 74 Stockfish 18 260131
4 182744 18.32% 27.89% 17.65% 14.90% 77 Reckless 260502 a512
5 156626 13.63% 30.61% 18.17% 19.08% 76 PlentyChess 7.0.37
6 154366 17.46% 27.09% 14.95% 16.64% 77 Berserk 14.0 a512
7 154312 14.20% 31.03% 16.53% 17.72% 78 Alexandria 9.0 a512
8 151415 13.07% 32.72% 16.70% 17.65% 77 Obsidian 250706 a512
9 144659 13.79% 38.77% 09.63% 21.58% 83 Tarnished 6.0 a512
10 139831 10.57% 38.87% 13.24% 20.08% 77 Quanticade 260617 a512
11 129178 13.54% 28.14% 14.92% 25.12% 78 Halogen 16.5 a512
12 125724 09.28% 21.25% 18.68% 19.71% 76 Raphael 260609 a512
13 119623 14.15% 24.18% 13.98% 21.41% 79 Caissa 1.25 a512
14 117550 12.93% 29.23% 10.23% 21.33% 82 Integral 250805 a512
15 115181 09.93% 28.61% 14.32% 21.99% 78 Pawnocchio 260527 a512
16 97297 07.87% 30.28% 10.29% 24.72% 81 Viridithas 19.0 a512
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*** Average length of all won games: 77 moves
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: Early sacrifices (percents of all sacs) : [1]:38.87% Quanticade 260617 a512
[2]:38.77% Tarnished 6.0 a512
[3]:33.21% Stockfish 18 260131
[4]:32.72% Obsidian 250706 a512
[5]:32.68% Torch 4d a512
B: Most sacrifices overall : [1]:22.13% Stockfish 18 260131
[2]:21.89% Stockfish 260614
[3]:20.98% Torch 4d a512
[4]:18.32% Reckless 260502 a512
[5]:17.46% Berserk 14.0 a512
C: Very short wins (47 moves or less) : [1]:02.59% Stockfish 260614
[2]:01.94% Stockfish 18 260131
[3]:01.88% Reckless 260502 a512
[4]:01.85% Torch 4d a512
[5]:01.53% PlentyChess 7.0.37
D: Most short wins overall : [1]:23.87% Torch 4d a512
[2]:22.27% Stockfish 260614
[3]:20.56% Stockfish 18 260131
[4]:18.68% Raphael 260609 a512
[5]:18.17% PlentyChess 7.0.37
E: Average length of all won games : [1]:072 Torch 4d a512
[2]:073 Stockfish 260614
[3]:074 Stockfish 18 260131
[4]:076 PlentyChess 7.0.37
[5]:076 Raphael 260609 a512
F: Smallest number of bad draws : [1]:10.32% Stockfish 260614
[2]:11.75% Stockfish 18 260131
[3]:12.90% Torch 4d a512
[4]:14.90% Reckless 260502 a512
[5]:16.64% Berserk 14.0 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