CCRL 40/40 Rating List — All engines (best versions only)

Chess engine tournament 2012 CCRL 40/40 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz) Computed on December 8, 2012 with Bayeselo based on 426'505 games Color legend: Commercial, Free, Open source, Private, Controversial. Bold font - tested with 200 games or more. Normal font - less than 200 games. "Controversial" means that the origin of those engines is debated in the community (CCC, OpenChess).

Rank Name Rating Score Average Opponent Draws Games LOS Elo + − 1 Houdini 3 64-bit 4CPU 3296 +17 −17 70.6% −143.7 43.2% 997 100.0% 2 Critter 1.6a 64-bit 4CPU 3212 +14 −14 58.6% −55.9 59.1% 1260 81.6% 3 Rybka 4 64-bit 4CPU 3203 +13 −13 60.7% −74.8 49.0% 1577 53.4% 4 Stockfish 2.2.2 64-bit 4CPU 3202 +15 −15 59.5% −62.8 53.3% 1121 93.9% 5 Bouquet 1.5 64-bit 4CPU 3178 +26 −26 48.3% +11.9 62.4% 356 88.6% 6 IvanHoe 9.46h 64-bit 4CPU 3160 +16 −16 53.7% −25.0 59.5% 1039 56.2% 7 Komodo 5 64-bit 3158 +11 −11 57.3% −50.7 52.2% 2156 78.5% 8 Strelka 5.5 64-bit 3151 +15 −15 55.6% −38.6 56.1% 1090 99.8% 9‑10 Hiarcs 14 4CPU 3112 +21 −21 44.0% +39.0 53.9% 564 50.7% 9‑10 Naum 4.2 64-bit 4CPU 3112 +12 −12 49.6% +1.4 50.1% 1998 72.5% 11 Chiron 1.1a 64-bit 4CPU 3104 +23 −23 44.0% +40.6 50.8% 484 95.1% 12 Deep Fritz 13 4CPU 3079 +21 −21 38.1% +77.4 50.2% 600 70.7% 13 Deep Junior 13 64-bit 4CPU 3072 +16 −16 42.3% +51.4 49.7% 1082 80.6% 14 Spike 1.4 Leiden 4CPU 3063 +13 −13 41.7% +55.8 45.6% 1637 60.3% 15 Deep Shredder 12 64-bit OA On 4CPU 3061 +11 −11 48.7% +8.5 45.7% 2383 100.0% 16 Protector 1.4.0 64-bit 4CPU 3021 +21 −21 36.6% +93.6 42.7% 654 54.2% 17 Gull II b2 64-bit 3019 +35 −35 47.9% +10.1 47.0% 217 65.0% 18 Zappa Mexico II 64-bit 4CPU 3011 +10 −10 49.2% +4.0 48.2% 2954 80.7% 19 Spark 1.0 64-bit 4CPU 3002 +17 −17 38.0% +83.5 45.4% 919 99.8% 20 Deep Sjeng c't 2010 2970 +10 −11 45.1% +33.7 45.5% 2541 63.0% 21 Onno 1.2.70 64-bit 4CPU 2965 +27 −27 50.4% −1.7 49.1% 348 74.2% 22 Thinker 5.4C Inert 64-bit 4CPU 2955 +14 −14 49.1% +5.8 39.0% 1552 62.5% 23 Hannibal 1.2 64-bit 2950 +23 −23 48.7% +10.1 39.1% 532 90.1% 24 Toga II 1.4.1SE 4CPU 2933 +12 −12 49.0% +7.3 41.6% 2092 77.4% 25 Bright 0.4a 4CPU 2926 +14 −14 49.9% +1.2 40.4% 1415 54.1% 26 Quazar 0.4 64-bit 2924 +21 −21 50.3% −1.4 42.6% 627 99.3% 27 MinkoChess 1.3 64-bit 2881 +29 −30 40.2% +71.6 36.1% 338 70.0% 28‑29 Loop M1-T 64-bit 4CPU 2872 +11 −11 43.2% +47.0 45.2% 2447 51.7% 28‑29 Nemo 1.0.1 64-bit 2872 +23 −23 50.3% −3.6 42.6% 514 59.5% 30 Crafty 23.3 64-bit 4CPU 2867 +28 −28 45.0% +35.4 37.8% 360 57.5% 31 Booot 5.1.0 2864 +10 −10 43.1% +49.6 41.2% 2834 84.5% 32 Jonny 4.00 4CPU 2843 +36 −36 42.5% +53.4 35.6% 219 75.0% 33 Tornado 4.88 64-bit 2827 +23 −23 51.7% −11.5 40.6% 510 96.8% 34 Texel 1.01 64-bit 2796 +26 −26 50.0% −0.6 31.5% 429 72.2% 35 SmarThink 1.20 64-bit 2786 +19 −19 55.6% −42.0 35.4% 835 66.3% 36 Naraku 1.4 2780 +22 −22 48.6% +9.5 24.4% 664 51.8% 37 Frenzee 3.5.19 64-bit 2779 +24 −24 48.9% +9.2 34.7% 498 56.7% 38 Twisted Logic 20100131x 64-bit 2776 +20 −20 52.0% −16.4 34.7% 737 65.4% 39 BugChess2 1.9 64-bit 2771 +20 −20 49.5% +2.5 33.9% 707 63.2% 40‑41 Bison 9.11 64-bit 2764 +33 −33 52.1% −17.8 31.9% 257 49.9% 40‑41 Ktulu 9 2764 +13 −13 45.1% +34.6 38.9% 1718 66.2% 42 Scorpio 2.7 32-bit 2759 +19 −19 49.0% +9.3 36.2% 826 81.0% 43 Chronos 1.9.9 32-bit 2748 +16 −16 50.5% −1.3 43.1% 1094 58.1% 44 DiscoCheck 3.7.1 64-bit 2744 +38 −37 57.5% −56.2 31.6% 206 62.9% 45 Bobcat 3.25 64-bit 2736 +30 −30 50.6% −2.6 35.6% 323 54.4% 46 Delfi 5.4 2CPU 2734 +17 −17 40.4% +71.6 35.7% 1017 60.5% 47 Chessmaster 11 2CPU 2729 +33 −33 47.5% +17.6 39.4% 259 76.3% 48 EXchess 6.50b 64-bit 2711 +37 −37 53.9% −28.6 36.2% 207 51.2% 49 Chess Tiger 2007.1 2710 +10 −10 45.0% +35.3 42.5% 3093 68.0% 50 Gaviota 0.85.1 64-bit 2704 +23 −23 49.7% +1.8 32.2% 556 52.1% 51 Dirty 25Aug2011 64-bit 2703 +28 −28 55.1% −36.4 39.5% 354 86.8% 52 Daydreamer 1.75 64-bit 2684 +20 −20 48.8% +10.3 39.5% 683 55.1% 53 Arasan 14.3 64-bit 2681 +30 −30 46.7% +22.1 36.2% 304 69.6% 54‑55 Deuterium 10.01.27.213 2671 +20 −20 51.8% −15.9 33.9% 704 48.8% 54‑55 Movei 00.8.438 (10 10 10) 2671 +11 −11 47.9% +12.9 37.7% 2470 85.6% 56 Alaric 707 2663 +11 −11 49.2% +5.5 34.2% 2441 92.6% 57 E.T. Chess 13.01.08 2650 +13 −13 49.5% +3.9 37.0% 1638 55.2% 58 Philou 3.7.1 64-bit 2649 +22 −22 50.9% −7.5 38.2% 597 53.8% 59‑60 Cyrano 0.6b17 2647 +14 −14 47.9% +14.6 41.4% 1477 50.7% 59‑60 Pharaon 3.5.1 2CPU 2647 +30 −31 32.2% +142.2 26.9% 357 59.5% 61 Colossus 2008b 2643 +12 −12 48.8% +7.9 37.9% 2050 55.6% 62 Cheng3 1.07 32-bit 2641 +29 −29 45.0% +35.6 30.2% 361 52.6% 63 Slow Chess Blitz WV2.1 2640 +11 −11 48.2% +12.5 36.8% 2431 52.6% 64 The Baron 2.23 64-bit 2639 +30 −30 49.4% +1.7 32.5% 311 54.2% 65‑66 ProDeo 1.74 2636 +22 −22 51.5% −9.3 32.9% 587 51.6% 65‑66 RedQueen 1.0.0 32-bit 2636 +22 −22 51.6% −8.5 35.9% 576 62.7% 67 Alfil 12 2630 +24 −24 52.4% −20.7 33.4% 521 59.4% 68‑69 Gandalf 6 2627 +11 −11 45.9% +30.3 35.7% 2541 52.8% 68‑69 WildCat 8 2627 +13 −13 48.9% +6.6 35.2% 1752 52.3% 70 Ruffian 2.1.0 2626 +13 −13 47.0% +23.3 37.1% 1713 70.8% 71 Hamsters 0.7 2617 +29 −29 47.0% +22.3 37.5% 333 67.4% 72 Sloppy 0.2.3 64-bit 2609 +22 −22 49.2% +5.0 31.7% 603 62.8% 73 Rotor 0.7a 2602 +31 −31 48.4% +11.0 30.8% 312 68.7% 74 Aristarch 4.50 2594 +12 −12 47.4% +20.2 32.0% 2275 59.9% 75 Petir 4.39 2591 +21 −21 49.4% +1.5 37.3% 638 54.1% 76 N2 0.4 64-bit 2589 +17 −17 50.8% −5.6 34.9% 970 55.2% 77 Brutus 8.05 64-bit 2587 +37 −37 50.5% −5.0 35.6% 205 50.7% 78 Pseudo 0.7c 2586 +13 −13 50.6% −4.5 37.9% 1657 56.4% 79 Amyan 1.72 2585 +13 −13 51.3% −9.9 30.9% 1870 51.7% 80 CuckooChess 1.12 2584 +25 −25 47.8% +17.3 30.6% 483 69.7% 81 GarboChess 3.0 64-bit 2575 +24 −24 53.6% −28.1 29.7% 539 55.0% 82 GNU Chess 5.07.153b 64-bit 2572 +30 −30 60.9% −82.8 30.2% 338 52.5% 83 Godel 2.05 32-bit 2571 +24 −24 49.0% +6.7 30.9% 525 82.5% 84 Francesca MAD 0.19 2557 +18 −18 46.5% +25.9 33.3% 893 68.1% 85 SOS 5.1 2552 +13 −13 47.5% +15.9 34.2% 1731 55.3% 86 Glass 1.8 64-bit 2549 +27 −27 46.7% +23.5 35.5% 380 53.0% 87 NanoSzachy 4.0 64-bit 2548 +37 −36 54.5% −36.1 31.8% 220 52.4% 88 Anaconda 2.0.1 2546 +25 −25 47.9% +13.9 35.2% 458 57.1% 89 DanaSah 4.88 2543 +21 −21 50.7% −5.0 34.2% 658 72.2% 90 AnMon 5.66 2534 +22 −22 50.2% −1.1 30.9% 605 54.7% 91 Ufim 8.02 2533 +13 −13 49.4% +2.3 31.1% 1966 97.7% 92 Rodin 4.0 2511 +17 −17 51.9% −17.6 31.1% 1003 52.9% 93 Hermann 2.8 64-bit 2510 +21 −21 48.4% +12.0 26.4% 709 59.9% 94 Rodent 0.10 2505 +33 −33 48.3% +10.8 32.7% 263 56.3% 95 Nimzo 8 2501 +26 −26 45.5% +35.5 32.2% 453 65.6% 96 Little Goliath Evolution 3.12 2495 +17 −17 46.4% +25.9 33.5% 1014 60.8% 97 Green Light Chess 3.01.2.2 2491 +26 −27 49.2% +4.9 31.7% 417 51.8% 98 Tao 5.6 2490 +16 −16 49.7% +2.9 26.9% 1201 60.6% 99 Pawny 0.3 64-bit 2484 +37 −37 54.6% −36.1 25.9% 216 56.6% 100 LittleThought 1.052 64-bit 2481 +22 −22 50.2% −2.5 22.5% 654 61.2% 101 Delphil 2.8 2476 +21 −21 49.2% +4.8 33.6% 636 54.8% 102 GreKo 8.0 64-bit 2474 +25 −25 50.6% −3.7 31.9% 464 55.3% 103 Yace 0.99.87 2472 +18 −18 50.2% −0.8 27.6% 980 56.6% 104 Xpdnt 091007 2470 +15 −15 49.3% +5.1 32.0% 1355 57.3% 105 SpiderChess 070603 2468 +22 −22 50.1% +1.6 39.7% 605 50.8% 106‑108 Anatoli 0.35k 2467 +16 −16 50.9% −7.9 32.3% 1236 49.5% 106‑108 Bruja 1.9.1 64-bit 2467 +22 −22 50.7% −4.0 25.7% 614 51.3% 106‑108 Matacz 1.3 2467 +27 −28 47.4% +19.1 33.0% 382 52.2% 109 Cerebro 3.03d 2466 +18 −18 49.8% −0.6 29.7% 982 51.8% 110‑111 Pepito 1.59 32-bit 2465 +22 −22 49.4% +2.8 33.8% 585 51.8% 110‑111 Trace 1.36 2465 +20 −20 49.1% +6.4 26.1% 754 50.8% 112 BBChess 1.3b 2464 +23 −23 51.0% −6.7 38.1% 525 53.5% 113 Quark 2.35 2463 +19 −19 49.6% +1.5 30.0% 791 71.3% 114‑115 Pupsi2 0.08 2456 +16 −16 49.0% +6.5 31.0% 1121 48.9% 114‑115 iCE 0.3 2456 +32 −31 54.3% −33.4 26.1% 303 55.3% 116 Counter 1.2 2453 +16 −16 48.3% +13.0 38.3% 1120 71.6% 117 Cheese 1.4 64-bit 2445 +26 −26 56.8% −53.4 26.3% 472 68.0% 118 Murka 2.0 64-bit 2436 +28 −28 44.1% +45.2 25.1% 390 59.2% 119 Eeyore 1.52 64-bit 2431 +23 −23 52.4% −19.0 25.8% 582 57.6% 120 Dorky 4.0 64-bit 2427 +35 −35 50.8% −4.5 32.5% 240 60.0% 121 Typhoon 1.00-348 2421 +34 −35 48.4% +11.8 27.8% 255 58.6% 122 Hussar 0.4 2417 +18 −18 47.1% +21.7 28.8% 941 52.4% 123 PostModernist 1016 2416 +24 −24 47.7% +15.6 29.0% 545 58.4% 124 Snitch 1.6.2 32-bit 2412 +22 −22 47.6% +17.4 28.7% 614 57.9% 125 Homer 2.01 2409 +19 −19 49.1% +6.1 32.6% 804 58.4% 126 Abrok 5.0 2406 +29 −29 49.1% +6.3 29.1% 344 64.6% 127 KnightDreamer 3.3 2397 +34 −34 48.8% +10.8 32.5% 243 51.6% 128 Muse 0.899b 2396 +21 −21 47.6% +19.3 27.0% 730 59.5% 129 Kiwi 0.6d 2392 +19 −19 46.4% +25.4 27.1% 861 64.5% 130 Diablo 0.5.1 2387 +18 −18 49.4% +5.0 31.6% 925 54.2% 131‑132 Dragon 4.6 2386 +18 −18 46.3% +27.0 34.3% 888 48.7% 131‑132 Queen 4.03a 2386 +19 −19 48.8% +7.6 34.5% 862 61.9% 133 RomiChess P3k 32-bit 2383 +18 −18 49.2% +5.5 33.0% 906 59.6% 134‑135 Amy 0.87b 2379 +24 −25 50.0% +2.7 25.6% 516 50.6% 134‑135 Djinn 0.925x 2379 +22 −22 46.6% +23.6 27.9% 646 50.1% 136 Gaia 3.5 32-bit 2378 +22 −22 48.8% +9.6 29.0% 627 52.6% 137 Comet B68 2377 +22 −22 47.2% +21.1 25.3% 640 53.7% 138‑139 Atlas 3.14b 32-bit 2376 +23 −23 49.2% +6.2 30.5% 551 49.3% 138‑139 Simplex 0.9.8 32-bit 2376 +29 −29 49.3% +3.8 31.3% 345 56.7% 140 Patzer 3.80 2373 +25 −25 49.8% +1.8 25.3% 506 52.9% 141 PikoSzachy 3.4 2371 +33 −33 48.6% +11.5 24.1% 295 56.2% 142 Phalanx XXII 2368 +23 −23 50.0% −0.6 23.6% 597 60.6% 143 Gosu 0.16 2364 +20 −20 47.4% +20.1 26.5% 780 56.7% 144‑145 Horizon 4.4 2362 +17 −17 49.2% +4.7 26.3% 1103 47.8% 144‑145 Sorgenkind 0.4 2362 +15 −15 52.2% −15.8 28.4% 1452 53.9% 146 Amateur 2.82 2361 +20 −20 47.0% +22.8 25.0% 787 57.9% 147 Sage 3.53 2359 +17 −17 50.0% −0.1 27.9% 1063 57.7% 148 TJchess 1.1 32-bit 2354 +39 −39 45.5% +37.4 25.4% 201 52.5% 149‑150 OliThink 5.3.2 64-bit 2353 +31 −31 45.8% +33.2 22.3% 332 48.8% 149‑150 Thor's Hammer 2.28 32-bit 2353 +26 −26 49.5% +4.7 29.1% 440 52.0% 151 Alex 2.14a 64-bit 2352 +27 −27 50.9% −5.1 25.2% 405 58.4% 152 Ifrit m1.5 2348 +26 −26 46.6% +26.0 29.0% 445 54.7% 153 Ares 1.004 2346 +15 −15 49.5% +2.1 26.7% 1409 66.7% 154 Tytan 9.3 2340 +22 −22 50.7% −5.6 25.9% 633 65.9% 155 Plisk 0.2.6 2332 +34 −34 51.3% −8.6 26.7% 266 68.6% 156 Flux 2.2.1 2322 +21 −21 50.2% −0.9 30.3% 657 64.7% 157 Arion 1.7 2316 +20 −19 51.8% −15.7 27.6% 818 54.7% 158 Ghost 2.0.1 2315 +19 −19 51.5% −10.7 29.7% 874 55.0% 159 WChess 1.06 2312 +30 −30 47.5% +16.7 32.9% 316 69.2% 160‑161 Aice 0.99.2 2303 +20 −20 47.2% +21.1 26.3% 777 50.0% 160‑161 Amundsen 0.80 32-bit 2303 +19 −19 47.5% +19.5 29.9% 825 61.9% 162 Asterisk 0.6 2299 +19 −19 48.9% +7.1 27.2% 837 66.2% 163‑165 Butcher 1.61 64-bit 2290 +34 −34 44.3% +46.7 23.5% 264 50.2% 163‑165 KnightX 1.92 2290 +22 −22 49.3% +3.7 28.0% 611 49.4% 163‑165 Waxman 2011 2290 +33 −33 46.3% +27.3 28.4% 271 53.8% 166 Averno 0.81 2288 +23 −23 48.7% +8.8 26.4% 557 56.5% 167 Popochin 2.9 2285 +35 −35 44.4% +47.3 31.2% 260 51.6% 168 Sungorus 1.4 64-bit 2284 +29 −29 47.8% +16.6 24.1% 378 55.4% 169‑170 ECE 12.01 2281 +29 −29 48.4% +11.0 31.5% 337 50.4% 169‑170 Mediocre 0.4 2281 +32 −32 51.0% −8.9 24.3% 309 52.8% 171 Sjakk 1.1.9 2279 +30 −30 51.2% −9.5 25.5% 341 61.9% 172 Zeus 1.27 2272 +31 −31 51.8% −19.1 23.2% 336 52.1% 173 Natwarlal 0.14 2271 +20 −20 48.3% +13.0 24.1% 813 61.6% 174‑175 Ant 2006-F 2267 +23 −23 48.5% +8.8 23.8% 617 49.7% 174‑175 Chezzz 1.0.3 2267 +22 −22 49.8% −0.8 25.6% 617 53.4% 176 Joker 1.1.14 2265 +21 −20 50.6% −5.1 27.8% 730 57.2% 177 Anechka 0.08 2263 +19 −19 46.9% +25.3 26.7% 850 79.9% 178‑179 AliChess 4.25 2250 +22 −22 50.0% −1.5 24.5% 625 48.9% 178‑179 Chaturanga 2.4.3 2250 +24 −24 50.1% −0.6 26.7% 539 69.4% 180 EveAnn 1.66 2240 +33 −33 47.8% +16.8 30.9% 269 64.5% 181 Matilde 2008 2231 +32 −32 51.5% −9.8 31.2% 295 56.8% 182 Chispa 4.0.3 2228 +19 −20 49.4% +4.5 27.5% 800 60.3% 183 Jazz 444 64-bit 2222 +37 −37 51.0% −7.0 19.6% 240 62.0% 184 RattateChess 1.0 Nosferatu 2216 +22 −22 48.9% +10.6 28.5% 610 64.9% 185 Beowulf 2.4a 64-bit 2209 +24 −24 54.4% −35.7 22.6% 539 75.4% 186‑187 Ayito 0.2.994 2197 +24 −24 46.5% +26.4 22.7% 538 50.2% 186‑187 Betsabe II 1.08c 2197 +35 −35 51.4% −10.0 21.8% 252 52.3% 188‑189 Atak 6.8 2195 +19 −19 46.9% +24.4 22.7% 875 49.8% 188‑189 Feuerstein 0.4.6.1 2195 +18 −18 49.1% +6.8 28.5% 939 53.9% 190 Dolphin 1.0 2194 +22 −22 51.8% −16.6 24.5% 640 68.7% 191 KMTChess 1.2.1 64-bit 2186 +24 −24 49.5% +2.9 23.4% 548 70.9% 192‑194 ChessAlex 2.0r4 2176 +23 −23 49.0% +5.0 29.0% 589 49.7% 192‑194 Gibbon 2.42c 2176 +24 −24 46.1% +29.4 28.4% 514 49.6% 192‑194 Myrddin 0.85 64-bit 2176 +26 −26 52.3% −17.6 22.2% 464 58.2% 195‑196 Bearded N44.2 32-bit 2172 +34 −34 51.1% −8.1 25.4% 268 49.1% 195‑196 FireFly 2.5.12 64-bit 2172 +34 −34 52.1% −18.1 22.3% 264 51.9% 197‑198 Bagatur 1.2d 32-bit 2171 +37 −37 45.2% +34.0 28.6% 220 50.5% 197‑198 Uralochka 1.1b 2171 +19 −19 48.5% +11.6 26.6% 835 58.5% 199 Adam 3.3 2168 +22 −22 51.3% −10.8 21.4% 665 61.6% 200 ZCT 0.3.2451 2162 +25 −26 49.4% +4.5 25.5% 478 55.5% 201 Neurosis 2.5 2160 +16 −16 49.1% +7.7 28.6% 1218 68.3% 202 BlackBishop 1.0 2155 +17 −17 48.9% +8.5 27.3% 1034 62.8% 203 Latista (Sinobyl) 1.5 2149 +28 −28 50.0% −2.9 24.9% 389 54.6% 204 Alf 1.09 2147 +23 −23 49.6% −0.8 29.3% 566 59.5% 205 OBender 3.2.4.2 2143 +19 −19 49.9% +2.2 25.4% 899 52.9% 206 Buzz 0.08 32-bit 2142 +26 −26 51.1% −7.7 25.4% 472 72.0% 207 Kurt 0.9.2.2 64-bit 2131 +24 −24 49.6% +4.6 22.6% 557 61.2% 208 NagaSkaki 5.12 2127 +19 −19 50.6% −5.4 28.0% 876 68.8% 209 Lime 66 2120 +21 −21 50.2% −3.2 21.1% 729 70.4% 210 Chesley r323 2111 +24 −24 49.5% +5.8 20.4% 583 69.5% 211 KnockOut 0.7.1 2104 +15 −15 52.1% −16.2 26.8% 1400 88.5% 212‑213 Parrot 07.01.16 2083 +30 −30 46.0% +31.8 21.5% 354 50.5% 212‑213 Prophet 2.0 2083 +18 −18 49.3% +4.9 24.0% 1005 82.0% 214 ChessKiss 1.3a 2065 +34 −34 47.5% +15.5 27.7% 264 61.7% 215 Clarabit 1.00 2059 +20 −20 47.6% +15.6 29.9% 736 78.6% 216 Carballo 0.5 32-bit 2046 +22 −22 47.2% +22.2 21.9% 688 91.5% 217 BikJump 2.01 2027 +17 −17 50.3% −2.0 27.3% 1062 70.5% 218 Rhetoric 0.10d 2015 +36 −37 47.7% +22.5 20.3% 256 63.0% 219 Protej 0.5.7 2008 +24 −25 46.8% +23.9 24.0% 520 54.5% 220 BigLion 2.23x 2006 +20 −20 45.6% +34.4 27.5% 754 64.3% 221 PLP 1661571 2000 +24 −24 46.9% +23.8 24.0% 559 69.2% 222 Jabba 1.0 1992 +22 −23 46.6% +26.9 26.9% 603 64.5% 223 Bubble 1.5 1986 +22 −22 45.4% +36.6 21.8% 666 67.6% 224 Matheus 2.3 1978 +23 −23 45.1% +41.0 22.7% 599 59.8% 225 Mustang 4.97 1974 +25 −25 43.9% +45.0 30.8% 484 56.1% 226 Slibo 0.5.1 1971 +24 −24 45.5% +36.4 19.4% 573 60.1% 227 Monarch 1.7 1967 +21 −21 45.1% +49.8 19.4% 777 84.8% 228 ChessMind 0.82 1950 +24 −24 45.9% +33.3 17.1% 580 67.4% 229 BSC 3.9 1941 +35 −35 44.9% +41.5 24.1% 253 52.3% 230 BibiChess 0.5 1939 +27 −27 47.8% +17.2 24.5% 436 59.1% 231 Schola 1.1.0 1935 +25 −26 45.7% +34.1 26.0% 480 82.7% 232 Heracles 0.6.16 1918 +25 −25 46.2% +29.4 27.9% 499 51.4% 233 AdroitChess 0.3 32-bit 1917 +34 −34 44.3% +49.0 19.5% 287 61.6% 234 Dabbaba 5.67 1910 +37 −37 42.0% +63.3 21.0% 238 61.1% 235 Monik 2.2.3 32-bit 1903 +30 −30 46.5% +26.0 27.7% 343 57.0% 236 Marvin 1.3.0 1900 +24 −24 43.2% +53.4 22.5% 570 72.5% 237 Rival 1.18 1889 +25 −25 45.6% +33.1 25.4% 489 53.0% 238 MatMoi 7.15.0 1888 +26 −26 41.5% +67.8 24.3% 477 62.8% 239 Smash 1.0.3 1882 +24 −25 40.8% +78.7 17.8% 574 78.5% 240 Micro-Max 4.8 (DM-PII) 1868 +24 −24 48.6% +12.6 25.1% 541 72.5% 241 GChess IV 0.2.0 1857 +29 −29 41.0% +70.5 27.9% 373 62.8% 242 Reger 0.09 1850 +26 −26 37.9% +97.9 22.1% 480 67.3% 243 Clueless 1.4 1842 +21 −22 40.4% +82.2 17.4% 726 79.8% 244 Warrior 1.0.3 1828 +26 −26 42.7% +58.4 25.1% 474 70.8% 245 Surprise 4.3b13 1818 +27 −28 38.9% +94.1 19.1% 446 91.7% 246 Predateur 2.2 64-bit 1786 +38 −39 39.6% +85.2 18.1% 216

LOS matrix All engines (top 12, best versions only)

# Name Elo 1 Hou 2 Cri 3 Ryb 4 Sto 5 Bou 6 Iva 7 Kom 8 Str 9 Hia 10 Nau 11 Chi 12 Dee 1 Houdini 3 64-bit 4CPU 3296 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 2 Critter 1.6a 64-bit 4CPU 3212 0.0 81.6 82.9 99.1 100.0 100.0 100.0 100.0 100.0 100.0 100.0 3 Rybka 4 64-bit 4CPU 3203 0.0 18.4 53.4 94.8 100.0 100.0 100.0 100.0 100.0 100.0 100.0 4 Stockfish 2.2.2 64-bit 4CPU 3202 0.0 17.1 46.6 93.9 100.0 100.0 100.0 100.0 100.0 100.0 100.0 5 Bouquet 1.5 64-bit 4CPU 3178 0.0 0.9 5.2 6.1 88.6 91.9 96.2 100.0 100.0 100.0 100.0 6 IvanHoe 9.46h 64-bit 4CPU 3160 0.0 0.0 0.0 0.0 11.4 56.2 79.2 100.0 100.0 100.0 100.0 7 Komodo 5 64-bit 3158 0.0 0.0 0.0 0.0 8.1 43.8 78.5 100.0 100.0 100.0 100.0 8 Strelka 5.5 64-bit 3151 0.0 0.0 0.0 0.0 3.8 20.8 21.5 99.8 100.0 99.9 100.0 9 Hiarcs 14 4CPU 3112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 50.7 70.0 98.9 10 Naum 4.2 64-bit 4CPU 3112 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 49.3 72.5 99.7 11 Chiron 1.1a 64-bit 4CPU 3104 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 30.0 27.5 95.1 12 Deep Fritz 13 4CPU 3079 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 1.1 0.3 4.9

LOS color legend:

0 10 20 30 40 50 60 70 80 90 100