Ranked #1 Stockfish 2019-10-09 64-bit 4CPU, According to CCRL 40/15 Downloads and Statistics June 13, 2020

CCRL 40/15 Rating List — All engines (best versions only) (Quote) Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB Time control: Equivalent to 40 moves in 15 minutes on an Intel i7-4770k. Computed on June 13, 2020 with Bayeselo based on 1'152'903 games Color legend: Commercial, Free, Open source, Private. Bold font - tested with 200 games or more. Normal font - less than 200 games. retrieved from http://ccrl.chessdom.com/ccrl/4040/

Rank Name Rating Score Average Opponent Draws Games LOS Elo + − 1 Stockfish 2019-10-09 64-bit 4CPU 3495 +27 −27 73.3% −148.3 52.1% 434   96.7% 2 Lc0 0.22.0 T40B.4-160 GTX1050 3463 +21 −21 62.1% −75.7 63.9% 642 99.4% 3 Komodo 13.3 64-bit 4CPU 3422 +23 −23 62.8% −74.8 61.8% 524 95.5% 4 Houdini 6 64-bit 4CPU 3400 +12 −12 61.4% −72.4 61.3% 2182 99.8% 5 Komodo 13.2.5 MCTS 64-bit 4CPU 3366 +21 −21 53.3% −18.5 70.0% 606 80.8% 6 Ethereal 12.00 64-bit 4CPU 3352 +23 −23 50.6% −1.4 68.5% 482 80.3% 7 Xiphos 0.6 64-bit 4CPU 3339 +19 −19 45.4% +29.2 65.6% 724 92.0% 8 Fire 7.1 64-bit 4CPU 3323 +12 −12 51.8% −11.8 61.4% 2007 65.4% 9 RofChade 2.3 64-bit 4CPU 3318 +23 −23 43.6% +36.9 70.1% 482 88.2% 10 Booot 6.4 64-bit 4CPU 3299 +23 −23 41.1% +52.6 64.8% 514 81.3%