THE SSDF RATING LIST 2019-12-10 152211 games played by 387 computers Rating + - Games Won Oppo ------ --- --- ----- --- ---- 1 Stockfish 10 x64 1800X 3.6 GHz 3529 30 -28 680 72% 3366 2 Stockfish 9 x64 1800X 3.6 GHz 3486 28 -26 802 71% 3327 3 Komodo 13.1 x64 1800X 3.6 GHz 3470 32 -30 520 64% 3374 4 Komodo 13.02 x64 1800X 3.6 GHz 3465 30 -29 600 65% 3354 5 Komodo 12.3 x64 1800X 3.6 GHz 3454 27 -26 760 66% 3336 6 Stockfish 9 x64 Q6600 2.4 GHz 3449 32 -31 480 56% 3401 7 Komodo 12.3 x64 Q6600 2.4 GHz 3441 38 -36 360 60% 3364 8 Stockfish 8 x64 1800X 3.6 GHz 3431 23 -21 1260 75% 3241 9 Stockfish 8 x64 Q6600 2.4 GHz 3412 31 -30 560 65% 3302 10 Komodo 13.02 MCTS x64 1800X 3.6 GHz 3401 31 -30 520 57% 3349 11 Komodo 11.01 x64 1800X 3.6 GHz 3394 22 -21 1254 70% 3247 12 Deep Shredder 13 x64 1800X 3.6 GHz 3358 24 -24 880 64% 3256 13 Booot 6.3.1 x64 1800X 3.6 GHz 3354 24 -23 843 51% 3345 14 Komodo 11.01 x64 Q6600 2.4 GHz 3343 27 -27 642 50% 3339 15 Komodo 9.1 x64 Q6600 2.4 GHz 3338 20 -19 1475 72% 3177 16 Stockfish 6 x64 Q6600 2.4 GHz 3326 21 -20 1256 69% 3191 17 Vajolet2 2.8 x64 1800X 3.6 GHz 3301 61 -65 123 43% 3351 18 Booot 6.3.1 x64 Q6600 2.4 GHz 3299 30 -30 520 53% 3271 19 Deep Shredder 13 x64 Q6600 2.4 GHz 3295 24 -23 884 64% 3192 20 Arasan 21.2 x64 1800X 3.6 GHz 3279 29 -30 560 40% 3348 21 Komodo 7 x64 Q6600 2.4 GHz 3269 23 -23 974 65% 3159 22 Komodo 5.1 x64 Q6600 2.4 GHz 3245 22 -22 1038 64% 3145 23 Arasan 21.2 x64 Q6600 2.4 GHz 3235 48 -52 200 38% 3322 24 Wasp 3.5 x64 1800X 3.6 GHz 3230 31 -33 520 32% 3359 25 Deep Hiarcs 14 1800X 3.6 GHz 3217 26 -26 720 40% 3290 26 Wasp 3 x64 1800X 3.6 GHz 3214 24 -25 842 39% 3292 27 Stockfish 3 x64 Q6600 2.4 GHz 3202 19 -18 1420 61% 3127 28 Deep Rybka 4 x64 Q6600 2.4 GHz 3199 20 -19 1368 65% 3093 29 Deep Rybka 3 x64 Q6600 2.4 GHz 3194 22 -21 1371 75% 3003 30 Deep Hiarcs 14 Q6600 2.4 GHz 3188 19 -18 1450 61% 3112 31 Chiron 3.01 x64 Q6600 2.4 GHz 3178 27 -27 656 45% 3215 32 Wasp 3.5 x64 Q6600 2.4 GHz 3176 41 -42 280 45% 3205 33 Naum 4.2 x64 Q6600 2.4 GHz 3146 21 -21 1123 60% 3078 34 Deep Junior Yokohama x64 Q6600 2.4 GHz 3126 22 -22 1010 42% 3184 35 Hiarcs 14 Athlon 1.2 GHz 3100 29 -29 560 55% 3065 36 Deep Fritz 13 Q6600 2.4 GHz 3097 24 -24 826 55% 3064 37 The Baron 3.43 x64 1800X 3.6 GHz 3091 29 -31 680 26% 3272 38 Revelation 2 Hiarcs 14.1 PXA320 800 MHz 2924 47 -46 220 55% 2889 39 Chessmaster King 3.5 x64 Q6600 2.4 GHz 2860 24 -25 932 30% 3009 40 Revelation Hiarcs 13.3 PXA255 500 MHz 2772 57 -52 177 66% 2661 41 Revelation Shredder 12 PXA255 500 MHz 2703 60 -58 140 56% 2663 42 Revelation Rybka 2.2 PXA255 500 MHz 2628 47 -44 240 62% 2545 43 Revelation Deep Sjeng 3 PXA255 500 MHz 2599 68 -76 100 37% 2691 44 ChessGenius 3 ZTE Apex3 ARM A53 1.3 GHz 2457 75 -68 100 62% 2376 45 Revelation Ruffian 2.1 PXA255 500 MHz 2352 68 -71 100 45% 2388 46 TASC R30 v. 2.5 ARM6 30 MHz 2274 42 -38 343 69% 2137 47 Millennium ChessGenius Excl. M7 300 MHz 2251 71 -68 101 55% 2211 48 Millennium ChessGenius Pro M4 120 MHz 2166 59 -54 160 63% 2070 49 Millennium ChessGenius ARM M4 48 MHz 2076 51 -47 211 63% 1986 50 Mephisto London 68000 12 MHz 2008 59 -58 140 53% 1983 3 Komodo 13.1 x64 1800X 3.6 GHz, 3470 Stoc10 1800X 18-22 Stock9 1800X 20-20 Stock9 Q6600 22-18 Komo12 Q6600 22,5-17,5 Stock8 1800X 20-20 Stock8 Q6600 23,5-16,5 Komo11 1800X 22-18 Booot6 1800X 28,5-11,5 Komo11 Q6600 27,5-12,5 Booot6 Q6600 29-11 Arasa21 1800X 29,5-10,5 Was35 1800X 35,5-4,5 DHiar14 1800X 32,5-7,5 17 Vajolet2 2.8 x64 1800X 3.6 GHz, 3301 Stoc10 1800X 7-33 Stock8 1800X 12-28 Booot6 1800X 1-2 Baro343 1800X 33-7 47 Millennium ChessGenius Excl. M7 300 MHz, 2251 Rebel 9.0 P90 6,5-13,5 Nimzo 3.0 P90 8-12 PTiger09 Tung 12-8 MCG Pro 13-7 Star Sapphire 15,5-4,5 Meph. MM 5 1-0 On this wintry December rating list of 2019, we can present three new entrants. First out is the Komodo-version which won the ICGA World Computer Chess Championship (WCCC) and World Software Chess Championship (WSCC) in Macau this summer. Komodo is programmed by Mark Lefler and Larry Kaufman, and we have used Erdogan Guenes opening book for the testing. After 520 games it has placed itself third in the rating list with a rating of 3470 on our 1800X platform. This is 5 points ahead of the 13.02 version and 16 points behind Stockfish 9. Next out is a newcomer on our rating list, namely Vajolet2 2.8 by Marco Belli. So far we have only played 123 games, but after those first couple of matches, it has performed admirably with a rating of 3301. More games will be needed to get a more reliable rating figure and lower the error bars, but the start has been very good. We have used Sedat Canbaz free opening book "Perfect2019.abk" for the testing of Vajolet2 2.8. Last out this time is the manually tested dedicated chess computer from the Millennium GmbH company, named Millennium ChessGenius Exclusive. It has an ARM Cortex M7 processor which is clocked at 300 MHz, and has the famous ChessGenius program by Richard Lang. Similar to the testing of ChessGenius Pro, we have used the opening book by Mark Uniacke for the testing. After the first 101 games it has achieved a rating of 2251, which is 85 points higher than the ChessGenius Pro. Some notable losses/gains from the previous list was: Komodo 11.01 Q6600 and Booot 6.3.1 Q6600 which gained 10 points each. The rating of Komodo 13.02 1800X and Komodo 13.02 MCTS 1800X fell after more games was played, and they lost 17 and 23 points. Arasan 21.2 Q6600 also lost 15 points from the last list. Our upcoming plan is to get more games with Vajolet2 2.8 on the 1800X level and also to be able to present enough games with it on our Q6600 hardware. The Q6600-version missed the mark for this list, but will be introduced in the upcoming rating list instead. We will hopefully also be able to introduce some other new programs for that list. For all those that celebrate Christmas and/or New Year, I will take the opportunity to wish you all a Merry Christmas and a Happy New Year from us in the SSDF. Lars Sandin P.S. Minor correction from the last list: It was Fauzi Dabat's opening book which we have used for the testing of Stockfish 10, and not Sedat's. D.S.