YottaChess chess database openings statistics - BETA

Data about analyzed chess games from YottaChess database

Statistics by opening name

Clicking on the ECO code (opening nomenclature) will take you to the chess opening book to see the moves along with the module, most important games, etc.

Acronyms used

  • White ELO average (WEA)
  • Black ELO average (BEA)
  • Black wins (BW)
  • White wins (WW)
  • Draws (D)
  • White Centipawn Loss (WCL)
  • Black Centipawn Loss (BCL)
Opening Games BW WW D WEA BEA WCL BCL
A00 - Ware Opening: Wing Gambit 42465 18477 17761 6176 1679 1682 85 87
D02 - Queens Pawn Game: Zukertort Variation 21377 8924 6925 5517 1934 1926 55 63
C50 - Italian Game: Schilling-Kostic Gambit 21278 9514 8210 3545 1619 1611 91 98
B01 - Scandinavian Defense: Zilbermints Gambit 20079 8512 6930 4627 1941 1930 59 65
B22 - Sicilian Defense: Alapin Variation, Stoltz Attack, Ivanchuk Line 16673 6014 5787 4871 2080 2109 46 48
B07 - Rat Defense: Petruccioli Attack 15200 6437 5172 3585 2075 2078 54 60
D00 - Veresov Opening: Malich Gambit 14036 5446 5683 2905 1897 1885 72 71
C01 - French Defense: Winawer Variation, Exchange Variation, Canal Attack 13694 4537 5135 4017 1863 1895 58 56
C02 - French Defense: Advance, Steinitz Variation 12616 4755 5276 2580 1925 1931 64 61
B06 - Robatsch (Modern) Defense 12467 4965 4568 2933 2100 2124 54 59
C42 - Russian Game: Urusov Gambit 11866 4853 3493 3514 2032 2024 60 70
B23 - Sicilian Defense: Marshall Gambit 11418 4359 4547 2510 2017 2037 58 59
C55 - Italian Game: Two Knights Defense, Perreux Variation 11343 4586 4722 2032 1731 1752 91 90
C45 - Scotch Game: Tartakower Variation 10836 4774 3466 2594 1954 1940 57 68
B33 - Sicilian Defense: Open, 3. d4 cxd4 4. Nxd4 Nf6 10820 3957 3790 3068 2136 2151 45 45
C00 - St. George Defense, 2. d4 a6 10819 4178 4483 2157 1983 1966 72 65
C41 - Philidor Defense: Steinitz Variation 10400 5266 3115 2017 1975 1968 60 81
B12 - Slav Defense: Diemer Gambit 10175 4255 3476 2441 2135 2127 51 55
B30 - Sicilian Defense: Old Sicilian 9665 3220 4368 2070 2052 2048 68 54
C54 - Italian Game: Giuoco Piano, Therkatz-Herzog Variation 9231 4148 2857 2225 1924 1909 60 75
A45 - Trompowsky Attack: Raptor Variation, Hergert Gambit 9148 3516 3542 2088 2152 2149 55 53
B50 - Sicilian Defense: Wing Gambit, Deferred Variation 8907 2803 4350 1751 1910 1924 73 57
B90 - Sicilian Defense: Najdorf, Lipnitsky Attack 8505 3062 2977 2464 2274 2283 42 41
B00 - Ware Defense 8254 3799 2985 1468 1947 1966 67 79
C44 - Tayler Opening 8149 3940 2915 1291 1766 1765 79 95
B40 - Sicilian Defense: Wing Gambit Deferred 7745 2815 3289 1639 2022 2024 63 57
A48 - Torre Attack: Fianchetto Defense, Euwe Variation 7525 2490 2957 2074 2100 2126 50 44
A40 - Ware Defense: Snagglepuss Defense 7436 3442 2552 1440 2036 2045 61 76
B08 - Pirc Defense: Classical Variation, Schlechter Variation 7406 2614 2794 1997 2032 2066 54 53
B20 - Sicilian Defense: Wing Gambit, Santasiere Variation 7320 2378 3654 1287 1953 2009 78 59
A07 - Kings Indian Attack: Yugoslav Variation 7126 2743 2198 2183 2220 2209 44 49
B13 - Caro-Kann Defense: Panov-Botvinnik, Herzog Defense 7029 2379 2744 1904 1939 1964 54 50
C47 - Four Knights: Scotch Variation, Belgrade Gambit, Modern Defense 6858 2657 2567 1633 1856 1858 74 75
B21 - Sicilian Defense: Smith-Morra Gambit, Chicago Defense 6654 2427 2891 1336 1854 1921 63 62
D35 - Queens Gambit Declined: Normal Defense 6585 2888 1787 1905 2080 2035 44 53
A46 - Yusupov-Rubinstein System 6437 2177 2437 1822 2137 2164 48 47
A04 - Zukertort Opening: Ware Defense 6326 2481 2253 1591 2161 2151 51 55
C10 - French Defense: Rubinstein Variation, Maric Variation 5910 2849 1402 1659 2081 2023 44 59
D37 - Queens Gambit Declined: Three Knights Variation 5740 2376 1446 1915 2262 2225 38 45
E61 - Kings Indian Defense: Smyslov Variation 5444 1891 2136 1417 2004 2028 54 51
B02 - Zaire Defense 5431 1860 2369 1201 1887 1933 70 65
A05 - Kings Indian Attack: Wahls Defense 5327 2090 1768 1467 2169 2148 45 47
A03 - Bird Opening: Williams Gambit 5259 2065 1954 1239 1923 1937 56 58
D30 - Semi-Slav Defense: Quiet Variation, 4. e3 e6 5. Nbd2 Nbd7 5213 2262 1514 1436 2117 2084 46 54
C11 - French Defense: Steinitz, Brodsky-Jones Variation 5187 2118 1669 1400 2208 2197 44 49
A30 - English Opening: Wing Gambit 5107 1840 1387 1872 2251 2236 35 40
D11 - Slav Defense: Quiet Variation 4984 2068 1286 1629 2236 2205 38 46
E11 - Queens Indian Defense: Petrosian Variation, Farago Defense 4967 1912 1257 1793 2312 2301 32 37
D45 - Semi-Slav Defense: Stonewall Defense 4924 1941 1346 1635 2241 2218 39 45
B10 - Van Geet Opening: Caro-Kann Variation, St. Patricks Attack 4892 1805 2012 1075 2099 2075 65 56
E12 - Queens Indian Defense: Petrosian Variation 4793 1769 1381 1643 2266 2259 37 40
B32 - Sicilian Defense: Open, 3. d4 cxd4 4. Nxd4 4645 1963 1566 1112 2051 2071 50 60
C65 - Ruy Lopez: Berlin Defense: Mortimer Variation 4579 2215 1228 1131 2173 2167 54 72
D10 - Slav Defense: Winawer Countergambit, Anti-Winawer Gambit 4517 1829 1425 1262 2106 2097 49 56
D05 - Rubinstein Opening: Semi-Slav Defense 4475 1847 1391 1236 1931 1914 51 57
D03 - Queens Pawn Game: Torre Attack, Gruenfeld Variation, Main Line 4442 1799 1331 1312 2091 2071 45 50
D85 - Gruenfeld Defense: Exchange Variation, Nadanian Attack 4381 1593 1134 1653 2340 2327 31 38
B31 - Sicilian Defense: Rossolimo Variation, Brooklyn Retreat Defense 4342 1685 1348 1306 2263 2242 43 43
D36 - Queens Gambit Declined: Exchange Variation, Reshevsky Variation 4323 1936 893 1494 2222 2168 32 40
A13 - English Opening: Romanishin Gambit 4311 1676 1256 1377 2230 2228 42 46
D15 - Slav Defense: Two Knights Attack 4310 1768 1172 1369 2278 2260 39 48
D20 - Queens Gambit Accepted: Schwartz Defense 4299 2187 1134 978 2019 2007 54 81
C68 - Ruy Lopez: Exchange, Alekhine Variation 4225 1569 1464 1190 1945 1944 61 60
A25 - English Opening: Kings English, Mazedonisch 4222 1792 1329 1100 2045 2032 51 58
A80 - Queens Pawn Game: Veresov Attack, Dutch System 4176 1704 1401 1067 2078 2069 53 58
A01 - Nimzowitsch-Larsen Attack: Polish Variation 4149 1714 1522 910 2126 2110 58 61
A41 - Zukertort Opening: Wade Defense, Chigorin Plan 4147 1610 1454 1083 2146 2186 50 56
B92 - Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line 4136 1294 1554 1288 2181 2221 39 38
D31 - Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line 4114 1826 1278 1010 2190 2174 47 59
A34 - English Opening: Symmetrical Variation, Three Knights Variation 4078 1485 1305 1287 2159 2153 46 47
B80 - Sicilian Defense: Scheveningen Variation, Vitolins Variation 4041 1581 1452 1006 2169 2179 48 51
A29 - English Opening: Kings English Variation, Four Knights Variation, Fianchetto Line 4000 1565 1077 1356 2188 2190 38 46
C06 - French Defense: Tarrasch Variation, Leningrad Variation 3999 1709 1133 1156 2168 2144 40 48
A57 - Benoni Defense: Hromadka System 3983 1582 1431 968 2193 2179 45 46
B52 - Sicilian Defense: Canal-Sokolsky Attack, Sokolsky Variation 3952 1365 1241 1346 2180 2170 40 40
B51 - Sicilian Defense: Canal-Sokolsky Attack 3944 1296 1469 1178 2248 2268 45 44
E94 - Kings Indian Defense: Orthodox Variation, Ukrainian Defense 3917 1570 1177 1169 2279 2270 38 39
A36 - English Opening: Symmetrical Variation, Symmetrical Variation 3913 1420 1174 1319 2141 2147 42 46
E90 - Kings Indian Defense: Zinnowitz Variation 3857 1611 1280 965 2157 2134 47 50
B09 - Pirc Defense: Austrian Attack, Weiss Variation 3829 1720 1085 1024 2155 2149 43 55
B34 - Sicilian Defense: Accelerated Dragon, Modern Variation 3792 1212 1731 848 1840 1895 63 55
B42 - Sicilian Defense: Kan, Gipslis Variation 3782 1461 1265 1055 2237 2261 40 44
C78 - Ruy Lopez: Rabinovich Variation 3753 1754 962 1036 2145 2142 43 59
B25 - Sicilian Defense: Closed Variation, Traditional 3699 1197 1477 1025 2040 2082 48 45
C48 - Four Knights Game: Spielmann Variation 3634 1496 1403 731 1758 1753 86 89
E92 - Kings Indian Defense: Petrosian Variation, Stein Defense 3624 1400 1063 1161 2278 2251 37 38
C77 - Ruy Lopez: Wormald Attack, Gruenfeld Variation 3589 1519 1114 955 2137 2131 49 57
B15 - Caro-Kann Defense: von Hennig Gambit 3578 1469 1180 928 2090 2112 48 56
B43 - Sicilian Defense: Kan Variation, Wing Attack, Spraggett Attack 3570 1180 1613 777 2131 2170 52 48
A16 - English Opening: Anglo-Indian Defense, Queens Knight Variation 3558 1435 1035 1087 2147 2118 44 49
A43 - Queens Pawn Game: Liedmann Gambit 3552 1492 1210 850 2138 2129 50 55
C18 - French Defense: Winawer Variation, Retreat Variation, Armenian Line 3552 1521 1085 944 2208 2185 41 50
E15 - Queens Indian, Buerger Variation 3531 1053 875 1599 2412 2423 26 28
A21 - English Opening: Kings English Variation, Troger Defense 3517 1368 1226 922 2147 2166 47 53
A15 - English Orangutan 3360 1328 1023 1006 2212 2197 45 46
E32 - Nimzo-Indian Defense: Classical Variation, Vitolins-Adorjan Gambit 3344 1132 945 1266 2344 2359 34 35
E91 - Kings Indian Defense: Orthodox Variation 3332 1485 970 874 2110 2087 43 52
D13 - Slav Defense: Exchange Variation, 3. Nf3 Nf6 4. cxd5 cxd5 3316 1128 842 1344 2093 2108 36 42
A22 - English Opening: Kings English, Erbenheimer Gambit 3305 1417 1113 772 1965 1976 56 64
B18 - Caro-Kann Defense: Classical Variation, Maroczy Attack 3289 1177 1120 990 1998 2009 47 48
D38 - Queens Gambit Declined: Ragozin Defense, Alekhine Variation 3280 1337 783 1160 2329 2321 35 46
E60 - Queens Pawn, Mengarini Attack 3278 1252 999 1027 2267 2253 41 43
C56 - Italian Game: Two Knights Defense, Yurdansky Attack 3255 1579 1023 653 1828 1821 59 81
D07 - Queens Gambit Refused: Chigorin Defense, Main Line, Alekhine Variation 3242 1834 807 601 1897 1853 57 87
A10 - English Opening: Zilbermints Gambit 3241 1367 1173 700 2060 2077 57 61
B76 - Sicilian Defense: Dragon Variation, Yugoslav Attack, Panov Variation 3233 1498 978 757 2058 2036 49 60
A85 - Dutch Defense: Queens Knight Variation 3205 1120 1340 745 1946 1986 58 54
D06 - Queens Gambit Refused: Zilbermints Gambit 3181 1973 670 537 1859 1757 55 96
D46 - Semi-Slav Defense: Romih Variation 3174 1367 689 1117 2226 2182 34 44
D94 - Gruenfeld Defense: Three Knights Variation, Paris Variation 3131 1060 1035 1035 2131 2142 41 40
B19 - Caro-Kann Defense: Classical, Spassky Variation 3126 1145 792 1189 2186 2174 31 37
C67 - Ruy Lopez: Open Berlin Defense: lHermet Variation 3085 889 575 1620 2480 2505 24 32
C57 - Italian Game: Two Knights Defense, Ulvestad Variation, Kurkin Gambit 3074 1795 974 304 1514 1471 100 140
A08 - Kings Indian Attack: Sicilian Variation, 7. O-O O-O 8. Re1 3056 1122 1113 819 2118 2122 48 49
A06 - Zukertort Opening: The Potato 3053 1208 1061 782 2143 2135 51 52
B45 - Sicilian Defense: Paulsen Variation, Normal Variation 3044 1147 1094 802 1996 2000 53 53
B17 - Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack 3039 1102 856 1081 2159 2158 37 42
D53 - Queens Gambit Declined: Modern Variation, Heral Variation 3038 1584 731 723 1895 1817 47 66
C30 - Kings Gambit: Zilbermints Double Countergambit 3014 1744 834 436 1807 1706 69 106
A11 - English Opening: Caro-Kann Defensive System 3007 1207 793 1007 2280 2243 37 42
B70 - Sicilian Defense: Dragon Variation, Fianchetto Variation 2942 982 1222 736 2074 2071 54 48
B84 - Sicilian Defense: Scheveningen Variation, Classical Variation, 6. Be2 e6 7. O-O Qc7 2936 1020 1145 771 2072 2104 47 48
E62 - Kings Indian Defense: Fianchetto Variation, Uhlmann-Szabo System 2890 1148 830 912 2254 2231 37 41
D04 - Queens Pawn Game: Colle System, Anti-Colle 2871 955 1181 735 1843 1886 57 54
C07 - French Defense: Tarrasch, Eliskases Variation 2860 1047 790 1022 2219 2215 36 40
C62 - Ruy Lopez: Steinitz Defense, Nimzowitsch Attack 2860 1646 735 477 1770 1662 59 88
B38 - Sicilian Defense: Accelerated Dragon, Maroczy Bind, 5. c4 Bg7 6. Be3 2855 1316 653 886 2162 2129 34 45
E97 - Kings Indian Defense: Orthodox Variation, Modern System 2849 1203 784 860 2296 2261 36 40
B03 - Alekhine Defense: OSullivan Gambit 2843 1162 1020 656 2096 2122 48 51
E14 - Queens Indian, Averbakh Variation 2843 1037 839 967 2206 2204 39 42
B14 - Caro-Kann Defense: Panov Attack, Fianchetto Defense 2813 1111 867 834 2123 2126 40 46
E20 - Nimzo-Indian Defense: Romanishin Variation, English Hybrid 2811 1097 846 868 2292 2285 42 47
B53 - Sicilian Defense: Modern Variations, Tartakower 2803 1172 901 728 2187 2187 42 50
B85 - Sicilian Defense: Scheveningen, Classical Main Line 2775 998 897 880 2266 2283 37 43
E81 - Kings Indian Defense: Saemisch Variation, Normal Defense 2771 1202 833 734 2207 2187 45 51
A47 - Queens Indian Defense: Marienbad System, Berg Variation 2769 853 1053 862 2088 2146 45 43
D12 - Slav Defense: Quiet Variation, Schallopp Defense 2758 971 801 985 2231 2210 38 41
B24 - Sicilian Defense: Closed, Smyslov Variation 2739 1082 1064 592 1923 1966 53 55
A28 - English Opening: Kings English Variation, Four Knights Variation, Quiet Line, 6. Nd5 Re8 7. Qf5 2729 1140 803 785 2203 2181 43 50
C40 - Latvian Gambit: Senechaud Gambit 2687 1467 924 295 1687 1642 95 129
C24 - Bishops Opening: Warsaw Gambit 2640 1245 899 494 1972 1938 72 81
B11 - Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line 2632 960 961 710 2104 2078 55 52
A42 - Sicilian Defense: Hyperaccelerated Fianchetto 2625 1062 877 686 2177 2189 46 50
A20 - English Openings: Kings English, Kahiko-Hula Gambit 2604 1096 787 718 2203 2198 47 54
B28 - Sicilian Defense: OKelly Variation, Yerevan System 2604 979 1032 593 1989 2037 52 52
C60 - Spanish Opening: Fianchetto Defense, Kevitz Gambit 2582 1323 765 491 2040 1997 58 87
A52 - Budapest Defense: Rubinstein Variation 2567 1134 782 651 2043 1979 48 50
A02 - System: Double Duck Formation 2561 1035 1030 496 1913 1936 65 67
B26 - Sicilian Defense: Closed Variation, 5. d3 d6 6. Be3 2539 821 994 724 2044 2101 46 46
D43 - Semi-Slav Defense 2530 920 716 891 2321 2312 38 41
C46 - Three Knights Opening: Winawer Defense 2475 1091 1049 334 1722 1719 97 102
B27 - Sicilian Defense: Quinteros Variation 2464 980 962 521 2025 2021 59 59
B56 - Sicilian Defense: Yates Variation 2446 798 1070 576 2031 2098 57 50
A14 - English Opening: Neo-Catalan Declined 2435 935 638 862 2315 2273 33 38
A26 - English Opening: Kings English Variation, Closed System, Full Symmetry 2386 772 872 739 2163 2180 44 41
C53 - Italian Game: Giuoco Piano, Mestel Variation 2381 1123 722 534 2041 2041 59 76
B48 - Sicilian Defense: Paulsen Variation, Bastrikov Variation, Ponomariov Gambit 2378 851 821 705 2289 2302 40 42
A84 - Horwitz Defense: Dutch Defense, Bellon Gambit 2376 1020 712 644 2081 2052 49 55
E70 - Kings Indian Defense: Normal Variation 2345 1000 772 571 2204 2184 47 52
C15 - French Defense: Winawer, Alekhine Gambit, Alatortsev Variation 2332 950 828 553 2063 2056 53 57
D55 - Queens Gambit Declined: Pillsbury Attack 2327 986 559 782 2087 2055 39 47
B04 - Alekhine Defense: Modern Variation, Schmid Variation 2325 907 741 677 2244 2255 42 46
D27 - Queens Gambit Accepted: Furman Variation 2278 689 448 1139 2404 2389 25 30
B44 - Sicilian Defense: Paulsen Variation, Szen Variation 2270 718 901 648 2073 2125 49 44
C05 - French Defense: Tarrasch Variation, Pawn Center Variation 2256 1029 693 531 2131 2109 45 55
B41 - Sicilian Defense: Kan, Maroczy Bind, Bronstein Variation 2245 805 851 587 2135 2169 47 46
A37 - English Opening: Symmetrical Variation, Two Knights Line 2237 661 759 816 2261 2289 37 34
C84 - Ruy Lopez: Closed, Basque Gambit (North Spanish Variation) 2223 839 616 768 2277 2257 37 41
A90 - Dutch Defense: Stonewall Variation, Modern Variation 2184 832 596 754 2217 2191 38 39
C66 - Ruy Lopez: Closed Berlin Defense: Chigorin Variation 2151 1091 603 457 1856 1782 55 71
B72 - Sicilian Defense: Dragon, Classical, Grigoriev Variation 2150 740 943 466 1878 1914 63 58
A53 - Old Indian: Czech Variation, with Nf3 2144 880 671 591 2131 2150 44 52
D52 - Queens Gambit Declined: Cambridge Springs Variation 2131 823 643 665 2059 2039 42 46
B78 - Sicilian Defense: Dragon Variation, Yugoslav Attack, Old Line 2121 987 704 428 2092 2069 48 58
E01 - Catalan Opening: Closed Variation 2118 961 503 653 2181 2135 36 47
D01 - Richter-Veresov Attack, 2. Nc3 d5 3. Bg5 Bf5 2117 720 838 559 2040 2060 55 49
A17 - English Opening: Anglo-Indian Defense, Queens Indian Variation 2091 764 660 667 2133 2136 46 46
B35 - Sicilian Defense: Dragon Variation, Modern Bc4 Variation 2087 723 824 539 2096 2112 47 45
A56 - Vulture Defense 2072 838 737 497 2182 2169 48 49
A09 - Reti Opening: Zilbermints Gambit 2034 816 667 548 2210 2219 48 53
C64 - Ruy Lopez: Classical Variation, Zukertort Gambit 2010 977 657 374 1856 1786 66 79
B47 - Sicilian Defense: Paulsen Variation, Bastrikov Variation 1992 676 707 608 2274 2296 39 41
C28 - Vienna Game: Vienna Gambit, Steinitz Gambit, Main Line 1988 931 626 429 1915 1891 62 76
E04 - Catalan Opening: Open Defense, Tarrasch Defense 1969 726 515 728 2378 2369 30 35
C88 - Ruy Lopez: Noahs Ark Trap, 9. Nxd4 exd4 10. Qxd4 c5 1953 760 447 746 2385 2363 31 35
D34 - Tarrasch Defense: Prague Variation, Main Line 1953 863 412 678 2270 2219 29 36
C14 - French Defense: Classical, Stahlberg Variation 1946 912 576 454 2039 2012 44 56
B54 - Sicilian Defense: Prins Variation 1944 985 591 368 2000 1909 52 77
D40 - Queens Gambit Declined: Semi-Tarrasch, Levenfish Variation 1941 622 658 661 2059 2070 46 45
E00 - Kangaroo Defense: Keres Defense, Transpositional Variation 1937 734 691 511 2090 2111 50 50
E10 - Indian Game: Dzindzi-Indian Defense 1937 846 613 478 2220 2220 43 50
C63 - Ruy Lopez: Schliemann Defense, Tartakower Variation 1930 731 665 531 2193 2181 48 45
D32 - Tarrasch Defense: von Hennig Gambit 1929 764 628 535 2090 2063 47 50
A31 - English Opening: Symmetrical Variation, Anti-Benoni Variation 1924 678 735 510 2166 2177 48 45
A49 - Zukertort Opening: Gruenfeld Reversed 1899 673 617 609 2213 2217 43 41
C92 - Ruy Lopez: Closed Variations, Zaitsev System 1898 665 354 879 2348 2333 25 31
C49 - Four Knights Game: Symmetrical, Tarrasch Variation 1890 732 660 497 1829 1845 73 79
C26 - Vienna Game: Stanley Variation, Reversed Spanish 1863 808 643 410 2071 2041 66 69
E73 - Kings Indian Defense: Semi-Averbakh System 1861 877 506 478 2210 2172 42 54
E06 - Catalan Opening: Closed Variation, 4. Bg2 Be7 5. Nf3 1855 755 412 687 2330 2287 33 39
C43 - Russian Game: Modern Attack, Trifunovic Variation 1841 799 397 644 2219 2181 37 52
A38 - English Opening: Symmetrical Variation, Full Symmetry Line 1792 623 508 660 2086 2066 41 44
C20 - Portuguese Opening: Portuguese Gambit 1761 646 940 175 1611 1597 141 122
E18 - Queens Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line 1752 678 349 724 2256 2227 30 37
B05 - Alekhine Defense: Modern, Vitolins Attack 1712 730 505 476 2190 2165 37 44
C25 - Vienna Game: Zhuravlev Countergambit, 2. Nc3 Bb4 3. Qg4 Nf6 1706 851 570 284 1944 1900 72 90
E16 - Queens Indian Defense: Yates Variation 1702 729 363 610 2276 2253 30 38
A81 - Dutch Defense: Semi-Leningrad Variation 1674 708 462 503 2264 2231 37 43
E67 - Kings Indian Defense: Fianchetto Variation, Debrecen Defense 1667 576 581 510 2139 2126 42 43
E05 - Catalan Opening: Open Defense, Classical Line 1655 521 290 844 2433 2405 24 26
A50 - Slav Indian: Kudischewitsch Gambit 1653 675 590 388 2184 2189 49 55
A12 - Reti Opening: Anglo-Slav Variation, Torre System 1647 589 456 600 2199 2181 37 38
C90 - Ruy Lopez: Closed Variations, Suetin Variation 1618 720 402 496 2170 2152 36 44
C13 - French Defense: Classical Variation, Vistaneckis (Nimzowitsch) Variation 1614 633 473 508 2147 2133 42 47
B46 - Sicilian Defense: Paulsen Variation, Taimanov Variation 1600 621 486 492 2188 2197 44 48
B73 - Sicilian Defense: Dragon, Classical, Zollner Gambit 1596 487 626 483 1917 1956 49 45
A87 - Dutch Defense: Leningrad Variation, 4. Bg2 Bg7 5. Nf3 1592 574 468 550 2241 2262 35 38
D78 - Neo-Gruenfeld Defense: Classical Variation, Polgar Variation 1583 619 409 554 2316 2277 34 38
E68 - Kings Indian, Fianchetto, Classical Variation, 8. e4 1573 595 487 490 2284 2268 38 40
C34 - Kings Gambit Accepted, Schallopp Defense, Tashkent Attack 1569 936 440 189 1762 1743 70 108
B86 - Sicilian Defense: Sozin Attack 1556 560 649 347 2073 2090 49 50
D47 - Semi-Slav Defense: Semi-Meran Variation 1542 543 393 605 2332 2315 32 35
A65 - Benoni Defense: Kings Pawn Line 1540 664 499 375 2288 2276 41 43
C03 - French Defense: Tarrasch Variation, Morozevich Variation 1537 590 478 467 2233 2255 39 46
D17 - Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line 1533 637 319 577 2438 2399 28 35
A35 - English Opening: Symmetrical Variation, Two Knights Variation 1528 578 478 471 2206 2187 44 46
C19 - French Defense: Winawer Variation, Positional Variation 1523 618 517 386 2211 2195 41 47
B81 - Sicilian Defense: Scheveningen Variation, Keres Attack 1516 678 400 438 2346 2339 34 47
D58 - Queens Gambit Declined: Tartakower Defense 1515 555 325 635 2232 2189 30 35
E69 - Kings Indian Defense: Fianchetto Variation, Classical Main Line 1499 743 343 413 2300 2250 33 41
A58 - Benko Gambit: Zaitsev System 1488 543 522 423 2214 2190 42 42
D60 - Queens Gambit Declined: Orthodox Defense, Rauzer Variation 1487 603 425 459 1924 1886 45 51
C70 - Ruy Lopez: Morphy Defense, Schliemann Defense Deferred, Jaenisch Gambit Deferred 1481 797 408 276 2014 1979 54 79
E21 - Nimzo-Indian Defense: Three Knights, Euwe Variation 1479 534 511 434 2190 2182 44 43
C89 - Ruy Lopez: Marshall, Main Line, Spassky Variation 1464 471 510 482 2162 2177 46 38
C27 - Vienna Game: Stanley Variation, Monster Declined 1452 685 511 256 1747 1735 78 92
A39 - English Opening: Symmetrical Variation, Mecking Variation 1444 637 285 521 2205 2147 32 42
E17 - Queens Indian Defense: Traditional Variation 1440 566 330 543 2311 2266 32 38
C12 - French Defense: MacCutcheon, Bogoljubov Variation 1438 525 488 425 2200 2234 39 42
B29 - Sicilian Defense: Nimzowitsch Variation, Main Line 1432 554 509 369 2164 2185 52 55
C16 - French Defense: Winawer Variation, Petrosian Variation 1431 665 412 354 2200 2195 42 54
B95 - Sicilian Defense: Najdorf Variation, 5. Nc3 a6 6. Bg5 e6 1415 449 695 271 1969 2008 59 51
B96 - Sicilian Defense: Najdorf Variation, Polugaevsky Variation, Simagin Line 1403 514 505 384 2295 2316 42 46
D41 - Queens Gambit Declined: Semi-Tarrasch, San Sebastian Variation 1401 499 285 617 2376 2354 29 35
C58 - Italian Game: Two Knights Defense, Polerio Defense, Yankovich Variation 1361 558 579 223 1793 1796 76 71
C22 - Center Game: lHermet Variation 1356 596 519 241 1939 1924 74 78
E63 - Kings Indian Defense: Fianchetto Variation, Panno Variation, Korchnoi Line 1356 487 402 467 2320 2302 36 35
A55 - Old Indian Defense: Normal Variation 1337 551 364 421 2271 2253 36 40
A33 - English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense, 4. d4 cxd4 5. Nxd4 e6 1327 470 336 520 2351 2348 32 35
C21 - Sicilian Defense: Smith-Morra Gambit, Danish Variation 1317 706 439 171 1640 1611 85 113
D93 - Gruenfeld Defense: Three Knights Variation, Hungarian Variation 1312 512 374 425 2155 2145 38 43
E46 - Nimzo-Indian Defense: Simagin Variation 1309 435 414 460 2345 2358 35 35
B87 - Sicilian Defense: Sozin Attack, Flank Variation 1299 459 498 341 2180 2215 44 47
B99 - Sicilian Defense: Najdorf Variation, Main Line 1299 599 411 289 2174 2155 41 51
A70 - Benoni Defense: Classical Variation, New York Variation 1291 545 403 343 2257 2245 40 43
C29 - Vienna Game: Vienna Gambit, Wurzburger Trap 1291 608 399 283 1942 1924 56 74
D91 - Gruenfeld Defense: Three Knights Variation, Petrosian System 1287 456 403 428 2254 2254 38 40
A18 - English Opening: Mikenas-Carls Variation, 3. e4 d5 4. e5 1277 687 270 318 2188 2116 42 63
B97 - Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation 1262 415 377 470 2314 2349 34 38
B83 - Sicilian Defense: Scheveningen Variation, Modern Variation, 9. Be3 Bd7 10. Nb3 1257 411 397 449 2131 2165 40 42
B77 - Sicilian Defense: Dragon, Yugoslav Attack, Byrne Variation 1256 562 384 310 2052 2060 46 60
E76 - Kings Indian Defense: Steiner Attack 1226 577 374 275 2095 2065 49 61
A24 - English Opening: Kings English Variation, Two Knights Variation, Fianchetto Line 1209 496 383 330 2062 2055 46 50
B88 - Sicilian Defense: Sozin, Fischer Variation 1201 458 427 316 2081 2119 45 50
C69 - Ruy Lopez: Exchange Variation, Normal Variation 1189 398 318 473 2271 2264 30 34
C17 - French Defense: Winawer Variation, Bogoljubov Variation, Icelandic Defense 1188 490 389 309 2134 2116 46 51
D44 - Semi-Slav Defense: Botvinnik Variation 1184 463 408 312 2290 2261 42 45
C95 - Ruy Lopez: Morphy Defense, Breyer Defense, Zaitsev Hybrid 1182 390 298 491 2384 2391 26 30
B57 - Sicilian Defense: Sozin, not Scheveningen 1174 414 428 332 2193 2239 40 44
C61 - Ruy Lopez: Bird Variation, Paulsen Variation 1174 594 343 236 1969 1902 55 73
D14 - Slav Defense: Exchange Variation, Trifunovic Variation 1164 196 180 788 2341 2346 20 20
C91 - Ruy Lopez: Closed Variations, Yates Variation, Short Attack 1155 455 342 357 2289 2276 34 37
B66 - Sicilian Defense: Richter-Rauzer Variation, Classical Variation, Kantscher Line 1150 461 332 356 2339 2348 34 41
D90 - Gruenfeld Defense: Three Knights Variation, 3. Nc3 d5 4. Nf3 Bg7 1146 516 301 329 2299 2274 36 47
D79 - Neo-Gruenfeld Defense: Ultra-delayed Exchange Variation 1142 317 250 575 2291 2287 28 29
C23 - Vienna Game: Stanley Variation, Meitner-Mieses Gambit 1139 593 424 122 1679 1624 116 164
B36 - Sicilian Defense: Accelerated Dragon, Maroczy Bind, Gurgenidze Variation 1134 378 239 516 2297 2272 27 30
D26 - Queens Gambit Accepted: Normal Variation, Traditional System 1116 517 214 385 2190 2185 33 50
B82 - Sicilian Defense: Scheveningen Variation, Tal Variation 1092 481 328 283 2281 2258 40 51
C51 - Italian Game: Jerome Gambit 1080 569 353 157 1830 1795 61 87
B93 - Sicilian Defense: Najdorf Variation, Amsterdam Variation 1079 414 356 309 2282 2287 40 43
E65 - Kings Indian Defense: Fianchetto Variation, Yugoslav Variation 1077 492 267 318 2112 2062 41 49
D87 - Gruenfeld Defense: Exchange Variation, Spassky Variation 1071 373 310 386 2272 2273 30 36
E38 - Nimzo-Indian Defense: Classical Variation, Berlin Variation 1070 409 318 343 2213 2207 40 41
D80 - Gruenfeld Defense: Zaitsev Gambit 1067 365 371 329 2257 2258 42 41
B89 - Sicilian Defense: Velimirovic Attack 1062 456 367 239 2228 2255 43 53
D24 - Queens Gambit Accepted: Showalter Variation 1057 507 310 240 2195 2160 46 62
C80 - Ruy Lopez: Open, Knorre Variation 1042 422 292 326 2224 2219 38 50
D61 - Queens Gambit Declined: Orthodox Defense, Rubinstein Variation 1041 517 216 308 2146 2068 34 48
B75 - Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations 1038 522 314 202 2057 2033 47 61
A54 - Old Indian Defense: Ukrainian Variation 1035 437 292 304 2184 2171 41 49
E99 - Kings Indian Defense: Orthodox Variation, Classical System, Traditional Line 1029 437 312 280 2285 2264 40 42
A88 - Dutch Defense: Leningrad Variation, Warsaw Variation 1027 346 319 362 2264 2275 36 37
E43 - Nimzo-Indian Defense: St. Petersburg Variation 1003 359 331 313 2245 2255 38 41
C04 - French Defense: Tarrasch Variation, Guimard Defense, Main Line 994 437 286 271 2211 2230 41 49
A51 - Indian Game: Budapest Defense 993 376 405 211 1866 1880 65 59
D08 - Queens Gambit Refused: Albin Countergambit, Tartakower Defense 992 448 364 179 1958 1952 68 70
C08 - French Defense: Tarrasch, Open, 4. exd5 exd5 991 351 232 408 2167 2166 34 36
B67 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation 990 380 317 293 2360 2385 34 36
A44 - Semi-Bononi 989 453 286 250 2179 2163 44 54
B49 - Sicilian Defense: Paulsen Variation, Bastrikov Variation, English Attack 986 321 352 313 2222 2252 38 39
D18 - Slav Defense: Czech Variation, Lasker Variation 981 347 258 376 2284 2260 34 36
D48 - Semi-Slav Defense: Meran Variation, Reynolds Variation 979 333 325 321 2246 2238 34 34
D25 - Queens Gambit Accepted: Winawer Defense 947 425 209 313 2187 2169 37 53
B94 - Sicilian Defense: Najdorf, Ivkov Variation 938 374 351 213 2191 2235 49 54
E71 - Kings Indian Defense: Makogonov Variation 916 458 234 223 2321 2257 40 51
E07 - Catalan Opening: Closed Variation, Botvinnik Variation 914 405 215 294 2172 2106 36 44
B16 - Caro-Kann Defense: Finnish Variation 892 369 287 236 2117 2099 41 47
C33 - Kings Gambit Accepted: Schurig Gambit 892 403 368 121 1975 2015 72 76
D51 - Queens Gambit Declined: Westphalian Variation 886 381 280 225 1912 1880 49 58
A32 - English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense 861 237 318 303 2205 2250 42 37
A60 - Benoni Defense: Modern Variation, Snake Variation 857 336 335 186 2123 2136 52 54
C96 - Ruy Lopez: Closed, Rossolimo Defense 843 320 209 314 2275 2253 32 38
C87 - Ruy Lopez: Closed Variations, Averbakh Variation 839 435 177 227 2027 1959 39 58
A59 - Benko Gambit Accepted, Yugoslav, without 7... Bxf1 837 318 255 264 2194 2181 38 41
D97 - Gruenfeld Defense: Russian Variation, with e4 837 317 221 299 2436 2425 31 33
C52 - Italian Game: Evans Gambit, Waller Attack 827 381 307 139 1890 1880 62 76
D16 - Slav Defense: Steiner Variation 823 345 198 280 2363 2340 32 43
E87 - Kings Indian, Saemisch, Orthodox, Bronstein Variation 819 372 262 185 2076 2040 49 55
B98 - Sicilian Defense: Najdorf Variation, Traditional Line 818 414 270 134 2058 1997 49 66
C99 - Ruy Lopez: Morphy Defense, Chigorin Defense, Panov System 813 312 192 308 2295 2255 25 30
A23 - English Opening: Kings English Variation, Two Knights Variation, Keres Variation 811 361 277 173 1921 1913 54 60
C09 - French Defense: Tarrasch Variation, Open System, Main Line 811 338 178 295 2241 2227 28 36
B91 - Sicilian Defense: Najdorf Variation, Zagreb (Fianchetto) Variation 808 260 271 276 2323 2352 37 36
E30 - Nimzo-Indian Defense: Leningrad Variation, Averbakh Gambit 807 278 344 185 1937 2026 56 53
A61 - Benoni Defense: Uhlmann Variation 800 344 233 223 2342 2320 35 40
C36 - Kings Gambit Accepted: Modern Defense 783 334 275 174 1947 1943 57 63
A27 - English Opening: Kings English Variation, Three Knights System 779 326 261 192 2162 2156 48 58
D19 - Slav Defense: Czech Variation, Classical System, Main Line 777 257 186 334 2354 2332 27 30
B55 - Sicilian Defense: Prins Variation, Venice Attack 776 289 271 216 2091 2074 52 48
E66 - Kings Indian Defense: Fianchetto Variation, Yugoslav Variation, Exchange Line 776 334 197 245 2289 2253 34 40
C97 - Ruy Lopez: Closed, Chigorin, Yugoslav System 775 336 172 266 2203 2167 31 40
C86 - Ruy Lopez: Closed Variations, Worrall Attack, Delayed Castling Line 772 336 213 223 2239 2221 37 40
D63 - Queens Gambit Declined: Orthodox Defense: Swiss, Karlsbad Variation 772 327 181 263 2157 2110 33 41
E51 - Nimzo-Indian Defense: Normal Variation, Saemisch Deferred 772 306 245 221 2025 2039 48 55
E39 - Nimzo-Indian Defense: Classical Variation, Berlin Variation, Steiner Variation 760 246 206 308 2378 2385 29 29
D77 - Neo-Gruenfeld Defense: Classical Variation 756 285 170 300 2310 2323 32 38
B59 - Sicilian Defense: Boleslavsky Variation, 6. Be2 e5 7. Nb3 752 183 339 230 2026 2161 47 39
A83 - Dutch Defense: Staunton Gambit, Nimzowitsch Variation 751 313 265 173 2101 2071 48 52
D23 - Queens Gambit Accepted: Mannheim Variation 751 294 179 278 2336 2314 33 39
D56 - Queens Gambit Declined: Lasker Defense: Russian Variation 749 284 147 318 2177 2139 32 42
E48 - Nimzo-Indian Defense: Normal Variation, Bishop Attack, Classical Defense 735 262 212 261 2395 2397 30 33
D50 - Queens Gambit Declined: Semi-Tarrasch, Krause Variation 734 386 193 155 1775 1747 53 76
E80 - Kings Indian Defense: Saemisch Variation 727 326 238 162 2149 2121 47 52
B74 - Sicilian Defense: Dragon, Classical, Spielmann Variation 722 273 256 193 2149 2168 39 40
C59 - Italian Game: Two Knights Defense, Steinitz Variation 720 269 298 153 1889 1885 63 54
E09 - Catalan Opening: Closed, Sokolsky Variation 715 345 138 231 2228 2130 28 41
D76 - Neo-Gruenfeld Defense: Delayed Exchange Variation, 6. cxd5 Nxd5 7. O-O Nb6 712 241 168 303 2401 2389 26 29
E19 - Queens Indian Defense: Classical Variation, Traditional Variation, Main Line 709 207 186 316 2224 2263 30 29
E24 - Nimzo-Indian Defense: Saemisch, Botvinnik Variation 698 255 278 165 1997 2040 52 52
E54 - Nimzo-Indian Defense: Panov Attack, Main Line 692 198 170 324 2374 2383 27 28
E13 - Queens Indian Defense: Kasparov Variation, 5. Bg5 h6 6. Bh4 Bb7 690 267 192 231 2352 2317 35 40
E08 - Catalan Opening: Closed, Zagoryansky Variation 689 340 112 237 2331 2292 26 40
E42 - Nimzo-Indian Defense: Huebner Variation, Rubinstein Variation, Sherbakov Attack 676 262 172 242 2376 2379 29 33
B60 - Sicilian Defense: Richter-Rauzer Variation, Modern Variation 663 283 194 186 2243 2267 39 49
E84 - Kings Indian, Saemisch, Panno Main Line 661 265 204 192 2281 2255 40 42
D21 - Queens Gambit Accepted: Slav Gambit 660 317 170 171 2123 2097 45 72
C85 - Ruy Lopez: Closed Variations, Delayed Exchange 652 231 172 249 2327 2309 34 35
D66 - Queens Gambit Declined: Orthodox Defense: Bd3 Line 646 304 146 196 1996 1933 36 48
D70 - Neo-Gruenfeld Defense: Non- or Delayed Fianchetto 644 302 161 181 2306 2250 36 50
B58 - Sicilian Defense: Classical Variation, Fianchetto Variation 627 212 241 174 2161 2213 41 37
E98 - Kings Indian Defense: Orthodox Variation, Classical System 620 283 179 158 2243 2222 38 43
A89 - Dutch Defense: Leningrad Variation, Matulovic Variation 609 222 224 163 2220 2228 42 39
B63 - Sicilian Defense: Richter-Rauzer Variation, Traditional Variation 607 256 176 175 2311 2307 35 41
D42 - Queens Gambit Declined: Semi-Tarrasch Defense, Main Line 605 272 127 206 2363 2329 28 43
A86 - Dutch Defense: Leningrad Variation 589 220 193 176 2173 2164 43 47
E33 - Nimzo-Indian Defense: Classical Variation, Zurich Variation 589 250 166 173 2189 2162 40 47
B39 - Sicilian Defense: Accelerated Dragon, Maroczy Bind, Breyer Variation 581 243 138 200 2237 2214 33 41
E72 - Kings Indian Defense: Pomar System 576 240 186 150 2012 1990 46 48
A67 - Benoni Defense: Taimanov Variation 575 290 163 122 2301 2254 37 49
E41 - Nimzo-Indian Defense: Huebner Variation, Main Line 573 202 194 177 2274 2293 36 38
E74 - Kings Indian Defense: Averbakh Variation, Benoni Defense, Exchange Variation 566 253 138 175 2231 2172 34 42
D86 - Gruenfeld Defense: Exchange, Simagins Lesser Variation 559 164 208 186 2278 2308 33 34
A62 - Benoni Defense: Fianchetto Variation, 7. Bg2 Bg7 8. Nf3 O-O 554 224 182 148 2331 2350 37 38
C79 - Ruy Lopez: Steinitz Defense Deferred, Lipnitsky Variation 554 280 134 140 2058 2020 39 60
E85 - Kings Indian Defense: Saemisch Variation, Orthodox Variation 552 285 154 113 2063 2011 45 58
C72 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, 4. Ba4 d6 5. O-O 549 274 133 141 2194 2171 40 53
C83 - Ruy Lopez: Open, Tarrasch Trap 541 204 127 210 2444 2419 28 33
C82 - Ruy Lopez: Open, Motzko Attack, Nenarokov Variation 538 209 156 172 2340 2335 32 33
B79 - Sicilian Defense: Dragon, Yugoslav Attack, 12. h4 524 214 181 129 2156 2116 44 46
D39 - Queens Gambit Declined: Ragozin Defense, Vienna Variation 506 155 107 244 2494 2486 28 38
B62 - Sicilian Defense: Richter-Rauzer, 6... e6 505 176 197 125 2037 2079 50 50
E83 - Kings Indian, Saemisch, Ruban Variation 504 191 198 115 2091 2093 50 49
E95 - Kings Indian, Orthodox, 7... Nbd7 8. Re1 503 211 118 174 2265 2265 35 44
C76 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto Variation 494 172 134 188 2377 2413 31 32
E34 - Nimzo-Indian Defense: Classical Variation, Noa Variation 493 153 153 187 2315 2330 39 37
E93 - Kings Indian Defense: Petrosian Variation, Normal Defense 486 187 172 127 2199 2170 46 44
A96 - Dutch Defense: Classical Variation, Huisl Variation 479 232 116 131 2137 2057 41 49
C32 - Kings Gambit, Falkbeer Countergambit, Modern Transfer 478 220 182 75 1910 1862 64 67
C31 - Kings Gambit, Falkbeer Countergambit, Staunton Line 474 198 186 90 1871 1912 72 71
E88 - Kings Indian Defense: Saemisch Variation, Closed Variation, 7... c6 473 202 146 125 2159 2185 48 50
E52 - Nimzo-Indian Defense: Normal Variation, Schlechter Defense 470 166 130 174 2287 2289 37 36
D74 - Neo-Gruenfeld Defense: Delayed Exchange Variation 462 213 106 142 2201 2158 36 45
B37 - Sicilian Defense: Accelerated Fianchetto, Simagin Variation 459 221 116 122 2243 2193 38 47
C93 - Ruy Lopez: Closed Variations, Smyslov-Breyer-Zaitsev Hybrid 455 197 94 164 2304 2310 27 35
D09 - Queens Gambit Refused: Albin Countergambit, Modern Line 454 242 127 85 2090 2033 48 63
C39 - Kings Gambit Accepted: King Knights Gambit, 3. Nf3 g5 4. h4 447 208 177 61 1970 2018 60 69
C71 - Ruy Lopez: Noahs Ark Trap 445 211 136 98 1988 1964 46 60
A68 - Benoni Defense: Four Pawns Attack 444 170 171 103 2114 2154 50 47
D73 - Neo-Gruenfeld Defense, with 5. Nf3 443 144 117 182 2384 2412 31 35
E44 - Nimzo-Indian Defense: Fischer Variation 432 186 119 127 2288 2270 32 39
E35 - Nimzo-Indian Defense: Classical, Noa Variation, 5. cxd5 exd5 426 165 102 159 2383 2393 30 33
D92 - Gruenfeld Defense: Three Knights Variation, Hungarian Attack 422 166 125 130 2228 2223 41 42
D22 - Queens Gambit Accepted: Alekhine Defense: Alatortsev Variation 419 133 102 184 2358 2368 29 31
B71 - Sicilian Defense: Dragon Variation, Levenfish Variation, Main Line 418 195 149 74 2058 2039 50 67
E49 - Nimzo-Indian Defense: Normal Variation, Botvinnik System 407 201 95 111 2400 2360 29 44
A82 - Dutch Defense: Staunton Gambit, Tartakower Variation 403 192 141 70 1995 1947 52 68
E40 - Nimzo-Indian Defense: Normal Variation, Taimanov Variation 402 207 110 85 2147 2094 42 60
E59 - Nimzo-Indian Defense: Normal Variation, Bernstein Defense 394 130 115 149 2334 2331 30 32
A69 - Benoni Defense: Four Pawns Attack, Main Line 390 179 112 98 2216 2215 38 53
E25 - Nimzo-Indian Defense: Saemisch, Romanovsky Variation 388 149 96 143 2442 2420 26 31
C35 - Kings Gambit Accepted: Cunningham, Bertin Gambit 384 176 143 65 1871 1893 65 74
E77 - Kings Indian, Six Pawns Attack 381 153 134 94 2099 2109 47 50
D71 - Neo-Gruenfeld Defense: Exchange Variation 380 105 132 143 2357 2368 37 34
B65 - Sicilian Defense: Richter-Rauzer, Rauzer Attack, 7... Be7 Defense: 9... Nxd4 379 144 78 157 2414 2386 26 31
C75 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, 5. c3 Bd7 6. d4 Nge7 379 160 105 114 2192 2226 38 44
E36 - Nimzo-Indian Defense: Classical, Noa Variation, Main Line 371 113 76 182 2408 2407 27 32
D88 - Gruenfeld Defense: Exchange Variation, Spassky Variation, 10. O-O cxd4 11. cxd4 366 123 102 141 2118 2101 31 35
D95 - Gruenfeld Defense: Three Knights Variation, Vienna Variation 363 132 105 126 2251 2242 35 38
D59 - Queens Gambit Declined: Tartakower Variation 361 98 77 186 2185 2187 25 26
A95 - Dutch Defense: Stonewall: Chekhover Variation 359 150 80 129 2101 2059 37 42
B61 - Sicilian Defense: Richter-Rauzer Variation, Modern Variation, 6. Bg5 Bd7 7. Qd2 359 145 100 114 2369 2356 30 35
E02 - Catalan Opening: Open Defense, 4. Bg2 dxc4 5. Qa4+ 357 154 76 127 2241 2227 27 34
C73 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, 5. Bxc6+ bxc6 6. d4 f6 352 134 117 101 2265 2246 38 39
A92 - Dutch Defense: Stonewall, with Nc3 351 159 90 102 2180 2127 38 45
D75 - Neo-Gruenfeld Defense: Delayed Exchange Variation, 7. O-O c5 8. dxc5 348 106 90 152 2323 2314 33 33
C37 - Kings Gambit Accepted: Soerensen Gambit 341 176 122 43 1863 1914 73 95
E55 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation 331 75 76 180 2461 2466 22 22
D33 - Tarrasch Defense: Wagner Variation 326 147 85 94 2137 2076 37 49
E64 - Kings Indian Defense: Fianchetto Variation, Yugoslav Variation, Rare Line 326 132 101 93 2174 2177 42 42
A77 - Benoni Defense: Classical Variation, Czerniak Defense, Tal Line 308 130 95 82 2304 2323 35 39
A91 - Dutch Defense: Classical Variation, Blackburne Attack 304 128 86 90 2126 2069 41 48
D82 - Gruenfeld Defense: Brinckmann Attack 301 114 97 90 2309 2318 33 35
C98 - Ruy Lopez: Closed Variations, Chigorin Defense, 12. Nbd2 Nc6 13. dxc5 298 114 69 115 2134 2135 26 35
E53 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Keres Variation 298 93 92 113 2343 2382 31 33
A64 - Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line 293 86 126 81 2299 2346 40 34
C81 - Ruy Lopez: Open, Howell Attack, Ekstrom Variation 286 125 64 97 2442 2437 28 38
E29 - Nimzo-Indian Defense: Saemisch Variation, Capablanca Variation 280 96 113 71 2293 2357 39 43
E86 - Kings Indian Defense: Saemisch Variation, 6. Be3 e5 7. Nge2 c6 280 126 84 70 2266 2251 43 47
C38 - Kings Gambit Accepted: Greco Gambit 278 107 144 27 1923 1994 76 63
A19 - English Opening: Mikenas-Carls, Sicilian 277 117 87 72 2280 2237 38 39
D29 - Queens Gambit Accepted: Classical Defense, Alekhine System, Smyslov Variation 277 96 86 95 2321 2344 38 36
D28 - Queens Gambit Accepted: Classical, Flohr Variation 271 116 56 99 2390 2358 27 38
E82 - Kings Indian Defense: Saemisch Variation, Double Fianchetto 270 96 92 82 2189 2186 41 43
D96 - Gruenfeld Defense: Russian Variation 258 103 82 73 2220 2165 39 42
C74 - Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation 257 99 82 76 2149 2148 45 49
E47 - Nimzo-Indian Defense: Normal Variation, Bishop Attack 251 108 73 70 2286 2274 40 44
E45 - Nimzo-Indian Defense: Normal Variation, Bronstein (Byrne) Variation 240 82 71 87 2350 2361 29 34
A75 - Benoni Defense: Classical Variation, Argentine Counterattack 237 84 69 83 2265 2288 33 35
E56 - Nimzo-Indian Defense: Normal Variation, Gligoric System, Bernstein Defense 235 79 56 100 2276 2287 32 32
E37 - Nimzo-Indian Defense: Classical Variation, Noa Variation, San Remo Variation 234 69 47 118 2466 2461 27 29
D64 - Queens Gambit Declined: Orthodox Defense: Rubinstein Attack, with Rc1 229 112 37 80 2173 2046 28 41
E27 - Nimzo-Indian Defense: Saemisch Variation 227 103 68 56 2282 2250 39 48
D49 - Semi-Slav Defense: Meran Variation, Stahlberg Variation 225 79 68 78 2424 2426 31 32
D67 - Queens Gambit Declined: Orthodox Defense: Bd3 Line, 9. Bxc4 Nd5 10. Bxe7 Qxe7 224 99 30 95 2219 2119 22 37
D89 - Gruenfeld Defense: Exchange Variation, Spassky Variation, 12. Bd3 cxd4 13. cxd4 Be6 224 69 83 72 2226 2206 33 33
D72 - Neo-Gruenfeld Defense: Exchange Variation, with 6. e4 221 96 57 68 2416 2368 31 36
E31 - Nimzo-Indian Defense: Leningrad Variation, Benoni Defense 216 71 83 62 2327 2351 40 38
A97 - Dutch Defense: Ilyin-Zhenevsky, Winter Variation 207 88 52 67 2202 2121 34 43
E22 - Nimzo-Indian Defense: Spielmann Variation 201 82 58 60 2064 2029 48 54
B68 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, 8. O-O-O Bd7 9. f4 Be7 198 72 68 58 2294 2352 36 40
A94 - Dutch Defense: Classical Variation, Stonewall Variation, 7. b3 c6 8. Ba3 194 97 25 72 2192 2079 26 41
D83 - Gruenfeld Defense: Brinckmann Attack, Reshevsky Gambit 194 63 56 75 2394 2425 30 31
E57 - Nimzo-Indian Defense: Normal Variation, Bernstein Defense, Exchange Line 191 87 38 66 2182 2114 38 50
A93 - Dutch Defense: Classical Variation, Stonewall Variation, Botvinnik Variation 185 92 23 70 2240 2165 27 43
E50 - Nimzo-Indian Defense: Normal Variation, Huebner Deferred 183 69 58 56 2121 2095 38 45
E03 - Catalan Opening: Open Defense, Alekhine Variation 180 37 52 91 2348 2380 28 25
A99 - Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Modern Main Line 178 85 45 48 2227 2150 37 44
E75 - Kings Indian, Averbakh, Main Line 177 74 49 54 2259 2237 28 36
A73 - Benoni Defense: Classical Variation, Main Line 166 62 57 47 2287 2303 38 37
E26 - Nimzo-Indian Defense: Saemisch Variation, OKelly Variation 166 67 57 42 2327 2273 39 46
A63 - Benoni Defense: Fianchetto Variation, Hastings Defense 146 48 48 50 2335 2360 36 34
B64 - Sicilian Defense: Richter-Rauzer Variation, Classical Variation, 8. O-O-O O-O 9. f4 e5 143 61 34 48 2344 2331 30 40
D98 - Gruenfeld Defense: Russian, Keres Variation 142 59 48 35 2283 2288 33 38
D69 - Queens Gambit Declined: Orthodox Defense, Classical Variation, 13. dxe5 Nxe5 14. Nxe5 Qxe5 140 35 12 93 2086 2029 22 32
E89 - Kings Indian Defense: Saemisch Variation, Closed Variation, Main Line 135 59 42 34 2311 2342 37 41
E28 - Nimzo-Indian Defense: Saemisch Variation, 5. a3 Bxc3+ 6. bxc3 134 53 48 33 2130 2159 40 47
A72 - Benoni Defense: Classical, without 9. O-O 129 48 42 39 2271 2247 44 41
D68 - Queens Gambit Declined: Orthodox Defense, Classical Variation, 12. Rxc3 e5 13. Qb1 129 41 16 72 2279 2205 21 24
A71 - Benoni Defense: Classical Variation, Averbakh-Grivas Attack 126 51 52 23 2196 2210 47 43
C94 - Ruy Lopez: Morphy Defense, Breyer Defense, Quiet Variation 118 38 24 56 2387 2382 24 27
D57 - Queens Gambit Declined: Tartakower Variation, Exchange Variation 116 42 25 49 2327 2306 27 32
D99 - Gruenfeld Defense: Russian Variation, Yugoslav Variation 104 40 31 33 2401 2389 37 39
E96 - Kings Indian Defense: Orthodox Variation, Positional Defense, Main Line 104 45 18 41 2308 2300 33 38
B69 - Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack 99 49 24 26 2438 2448 32 44
A79 - Benoni Defense: Classical Variation, Czerniak Defense, 10. Nd2 Na6 11. f3 94 36 36 22 2353 2394 33 32
A98 - Dutch Defense: Classical Variation, Ilyin-Zhenevsky Variation, Alatortsev-Lisitsyn Line 93 36 28 29 2091 2052 40 49
D84 - Gruenfeld Defense: Brinckmann Attack, Gruenfeld Gambit Accepted 90 26 19 45 2413 2426 27 30
D81 - Gruenfeld Defense: Russian Variation, Accelerated Variation 89 38 25 26 2402 2330 34 39
D54 - Queens Gambit Declined: Neo-Orthodox Variation 86 39 13 34 2360 2326 24 34
E79 - Kings Indian Defense: Four Pawns Attack, Exchange Variation 80 31 21 28 2084 2159 33 39
A66 - Benoni Defense: Pawn Storm Variation 79 38 28 13 2169 2139 41 54
D62 - Queens Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line 79 28 8 43 2342 2267 22 31
D65 - Queens Gambit Declined: Orthodox Defense, Rubinstein Attack, 8. Qc2 a6 9. cxd5 67 30 12 25 2410 2316 22 28
E23 - Nimzo-Indian Defense: Spielmann, Stahlberg Variation 65 22 17 26 2345 2255 35 32
E78 - Kings Indian Defense: Four Pawns Attack, Fluid Attack 58 36 10 12 1942 1865 37 66
A74 - Benoni Defense: Classical Variation, Full Line 54 31 13 10 2174 2138 38 52
A78 - Benoni Defense: Classical Variation, Czerniak Defense, 9. O-O Re8 10. Nd2 Na6 49 16 20 13 2372 2394 40 39
A76 - Benoni Defense: Classical Variation, Czerniak Defense 43 14 20 9 2005 2118 55 40

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