CCRL chess engine ratings, 40/40 pure list: http://www.computerchess.org.uk/ccrl/4040/rating_list_pure.html 1 Komodo 10 64-bit 4CPU 3383 (+21) +27 -26 76.5% -174.2 43.3% 492 94.1% 2 Stockfish 7 64-bit 4CPU 3355 (+17) +26 -25 69.3% -116.9 55.4% 457 100.0% 3 Houdini 4 64-bit 4CPU 3285 (+30) +20 -19 61.2% -68.9 51.8% 793 100.0% 4 Fire 4 64-bit 4CPU 3225 (+18) +20 -20 51.2% -4.2 63.7% 691 92.3% 5 Equinox 3.20 64-bit 4CPU 3205 (+19) +22 -22 46.8% +21.3 65.9% 533 51.7% 6 Gull 2.8b 64-bit 4CPU 3204 (+14) +32 -32 55.9% -34.9 55.0% 278 81.6% 7 Fritz 15 64-bit 4CPU 3184 (+15) +27 -27 45.6% +29.5 60.7% 387 56.5% 8 Critter 1.6a 64-bit 4CPU 3182 (+11) +18 -18 47.8% +13.8 58.0% 910 63.8% 9 Bouquet 1.8 64-bit 4CPU 3176 (+17) +23 -24 46.5% +24.6 60.8% 502 53.2% 10 Protector 1.9.0 64-bit 4CPU 3175 (+24) +26 -26 46.6%