Ratings
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Rank Name Elo + - games score oppo. draws
1 Critter 1.4 3247 41 39 250 79% 2996 29%
2 IvanHoe 999946h 3189 39 38 250 71% 3008 32%
3 Stockfish 2.2.1 3170 38 37 300 74% 2954 26%
4 Protector 1.4 2918 33 33 350 46% 2953 22%
5 Umko 1.2 2864 28 28 500 50% 2875 24%
6 Toga 1.4.1 2841 26 26 600 55% 2818 22%
7 Daydreamer 1.75 2738 27 27 450 60% 2665 29%
8 Fruit 2.1 2700 25 25 500 51% 2694 27%
9 Crafty 23.4 2664 29 29 450 37% 2778 24%
10 GNU Chess 5.07.173b 2647 27 27 450 46% 2675 26%
11 Arasan 13.4 2633 31 31 350 43% 2686 24%
12 Pepito 1.59 2586 28 28 450 53% 2560 21%
13 Sloppy 0.2.2 2538 24 24 600 44% 2577 23%
14 Greko 9.0 2510 27 27 500 43% 2566 20%
15 Pawny 0.3.1 2474 31 31 350 49% 2485 22%
16 DoubleCheck 2.4 2422 33 33 300 44% 2470 21%
17 EXchess 6.0.2 2362 37 38 250 38% 2458 18%
18 Sungorus 1.4 2347 34 35 300 32% 2482 19% * Open Source and Portable engines only: not interested in closed source, commercial, or windows only programs.
* Copyleft: Ideally licensed under the GNU GPL, or with copyright restrictions that are not excessive.
* 1min+1sec/move, 64 MB Hash, 1 Thread, 64-bit, Ponder off, no EGTB.
* 8 book moves: neither to little, nor too much. Allows engines to develop their own plan, while offering a large enough number of opening positions.
* Bayeselo, offset Fruit 2.1 = 2700 elo.