Moderators: hgm, Rebel, chrisw
I don't understand, such a great tournament and then such a poor PGN support?arunsoorya1309 wrote: ↑Sun Dec 23, 2018 1:10 am We are migrating to newer infrastructure. The archive page will be updated once stage2 starts to get all links to point to the new pgn location
. What happened in previous tournaments?? But some wrote in chat, that Stockfish had won ALL serious tournaments in last 2-3 years. So SF was probably winner.. 
It is my opinion that for a tournament where the objective is to understand engine strength (and not a book tournament like Sedat's) every book exit point should be analyzed to at least 40 plies by two very strong engines.jdart wrote: ↑Tue Jan 22, 2019 3:49 pm I find even during the match, the only way to see/download games is to look at the crosstable and select them from there. Seems not optimal.
Another comment (and I do appreciate the tourney): the openings are sometimes quite unbalanced. I understand that seeing a whole series of draws is something maybe they want to avoid, but if you look at the evals, quite a few games have one side with a significant plus very early on, and the eval curve just keeps on going up. So that indicates to me that the opening is likely only good for one side. TCEC also tries for unbalanced openings to some extent but I don't see this phenomena there so much.
--Jon
As long as the opening line is not proven to lose by force, any eval score should be acceptable. I'm wary of artificial and arbitrary thresholds because the engines could be giving a wrong score in any particular opening. After all, isn't that what we're really testing: the strength, and by extension the correctness and reliability of the eval scores, of the engines?Dann Corbit wrote: ↑Tue Jan 22, 2019 8:14 pmIt is my opinion that for a tournament where the objective is to understand engine strength (and not a book tournament like Sedat's) every book exit point should be analyzed to at least 40 plies by two very strong engines.jdart wrote: ↑Tue Jan 22, 2019 3:49 pm I find even during the match, the only way to see/download games is to look at the crosstable and select them from there. Seems not optimal.
Another comment (and I do appreciate the tourney): the openings are sometimes quite unbalanced. I understand that seeing a whole series of draws is something maybe they want to avoid, but if you look at the evals, quite a few games have one side with a significant plus very early on, and the eval curve just keeps on going up. So that indicates to me that the opening is likely only good for one side. TCEC also tries for unbalanced openings to some extent but I don't see this phenomena there so much.
--Jon
If a centipawn evaluation is above 60[*], then it is not a good opening (even though the positions reverse it does not become fair. E.g. Stockfish loses to Texel and then Wins because of reversal, but would more likely have won both or won and drawn).
If there is an opening which is statistically desirable, and the centipawn evaluation remains polar, then analyze to 50 plies if you want to include it. If it remains polar, analyze to 60 plies.
IMO-YMMV.
[*] 60 is somewhat arbitrary, but has some reasonable backing. A centipawn evaluation of +60 gave 103018 wins for the side to move, 64147 wins for the opponent, and 70688 draws in my database among high end opponents. That yields 58% of the points.
Please demonstrate a position where (after a 40 ply search) two top engines both score the position as more than 60 centipawns (positive or negative) and yet the position is fair as far as actual game outcomes.carldaman wrote: ↑Tue Jan 22, 2019 11:02 pm Excluding certain lines of play best on artificial criteria can be unfair to those engines that do play those openings much better than others. For example, take Stockfish and the Black side of the King's Indian, which SF handles better than most. Would you exclude that from testing at Stockfish's expense just because it's scored incorrectly by most engines, (including maybe SF itself)?
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rn1qkb1r/pbp2ppp/1p2p3/3n4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - acd 59; ce 9; white_wins 6004; black_wins 5124; draws 5031; Opening Queen's Indian Defense: Kasparov-Petrosian Variation. Modern Variation 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5; CaxtonID: 2694; ECO: E12;
rnbqkbnr/ppp2ppp/4p3/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R b KQkq - acd 56; ce -9; white_wins 2260; black_wins 1822; draws 2314; Opening English Opening: Agincourt Defense. Agincourt Variation 1.c4 e6 2.Nf3 d5 3.g3; CaxtonID: 424; ECO: A13;
r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/2N2NP1/PP1PPP1P/R1BQKB1R b KQkq - acd 54; ce -17; white_wins 11228; black_wins 9642; draws 8387; Opening English Opening: King's English Variation. Four Knights Variation Fianchetto Lines 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3; CaxtonID: 478; ECO: A29;
rnbqkbnr/pp2pppp/2p5/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - acd 53; ce 16; white_wins 53812; black_wins 40759; draws 45094; Opening ECO:B12; Opening: Caro-Kann defence; 1. e4 c6 2. d4 d5 *;
r1bqkbnr/pppp1ppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 53; ce -10; white_wins 10423; black_wins 8375; draws 8462; Opening Scotch Game: General. 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4; CaxtonID: 1930; ECO: C45;
rnbq1rk1/pp3ppp/4pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 b - - acd 53; ce -9; white_wins 9015; black_wins 7963; draws 8480; Opening ECO:E53; Nimzo-Indian: Main Line, 6...c5 7.O-O; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O *;
r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/2N1PN2/PPQ1BPPP/R1B2RK1 b - - acd 53; ce -10; white_wins 7725; black_wins 6795; draws 6707; Opening ECO:D45; Variation QGD: semi-Slav, Stoltz variation; Comment (add) *pwo; 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 5. e3 Nbd7 6. Qc2 Bd6 7. Be2 O-O 8. O-O *;
r1bqkb1r/pppp1ppp/2n5/1B2p3/4n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - acd 53; ce 18; white_wins 5123; black_wins 4265; draws 5612; Opening Spanish Game: Berlin Defense. Rio Gambit Accepted 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.O-O Nxe4; CaxtonID: 2368; ECO: C67;
rn1qkb1r/pb1ppppp/1p3n2/2p5/2P5/5NP1/PP1PPPBP/RNBQ1RK1 b kq - acd 53; ce -46; white_wins 3547; black_wins 2800; draws 3931; Opening ECO:A30; Variation Reti/English: symmetrical, hedgehog system; Comment *pwo 12/01 nat; 1. Nf3 c5 2. g3 b6 3. Bg2 Bb7 4. c4 Nf6 5. O-O *;
r1bqk2r/1p2bppp/p1n1pn2/2p5/P1BP4/2N1PN2/1P3PPP/R1BQ1RK1 w kq - acd 53; ce 10; white_wins 1028; black_wins 935; draws 1390; Opening ECO:D27r; QGA: Classical, Rubinstein, 8.Nc3 Be7; 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.a4 Nc6 8.Nc3 Be7 *;
rnbqkbnr/pppp1ppp/4p3/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 52; ce 20; white_wins 89304; black_wins 62896; draws 67317; Opening French Defense: General. 1.e4 e6; CaxtonID: 632; ECO: C00;
rnbqkbnr/ppp2ppp/4p3/3p4/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - acd 52; ce 31; white_wins 87302; black_wins 60026; draws 67092; Opening French Defense: Advance Variation. Steinitz Variation 1.e4 e6 2.d4 d5; CaxtonID: 595; ECO: C00;
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - acd 52; ce 28; white_wins 20435; black_wins 15283; draws 19219; Opening Queen's Gambit Declined: Normal Defense. 1.d4 d5 2.c4 e6 3.Nc3 Nf6; CaxtonID: 1716; ECO: D35;
r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - acd 52; ce -22; white_wins 17062; black_wins 14291; draws 12632; Opening Italian Game: General. 1.e4 e5 2.Nf3 Nc6 3.Bc4; CaxtonID: 903; ECO: C50;
rnbqk2r/ppp1bpp1/4pn1p/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - acd 52; ce 9; white_wins 10152; black_wins 9007; draws 11499; Opening ECO:D53d; QGD: 4.Bg5 Be7 5.Nf3 h6; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.Nf3 h6 *;
rnbqkb1r/ppp2ppp/4pn2/8/2pP4/5NP1/PP2PPBP/RNBQK2R b KQkq - acd 52; ce -38; white_wins 9068; black_wins 7277; draws 6105; Opening Catalan Opening: Open Defense. 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Nf3; CaxtonID: 326; ECO: E04;
rnbqkbnr/ppp1pppp/8/8/2pP4/4P3/PP3PPP/RNBQKBNR b KQkq - acd 52; ce -26; white_wins 5360; black_wins 3846; draws 5013; Opening Queen's Gambit Accepted: Old Variation. 1.d4 d5 2.c4 dxc4 3.e3; CaxtonID: 1663; ECO: D20;
rnbq1rk1/ppp1ppbp/3p1np1/8/1PPP4/4PN2/PB3PPP/RN1QKB1R b KQ - acd 52; ce 9; white_wins 150; black_wins 140; draws 160; Opening Polish Opening: King's Indian Variation. Sokolsky Attack 1.b4 Nf6 2.Bb2 g6 3.c4 Bg7 4.e3 d6 5.Nf3 O-O 6.d4; CaxtonID: 2894; ECO: A00;
r1bqkbnr/pp1ppppp/2n5/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - acd 51; ce 28; white_wins 92821; black_wins 72124; draws 72293; Opening Sicilian Defense: Old Sicilian. General 1.e4 c5 2.Nf3 Nc6; CaxtonID: 2208; ECO: B30;
r1bqkbnr/pp1ppppp/2n5/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 51; ce -25; white_wins 58669; black_wins 47101; draws 45782; Opening ECO:B32c; Sicilian: Open, 2...Nc6; 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 *;
rnbqkbnr/pppp1ppp/8/4p3/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - acd 51; ce 9; white_wins 41419; black_wins 36314; draws 31345; Opening English Opening: King's English Variation. General 1.c4 e5; CaxtonID: 485; ECO: A20;
rnbqk2r/ppppppbp/5np1/8/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - acd 51; ce -10; white_wins 19875; black_wins 14199; draws 14524; Opening ECO:E61i; King's Indian: 4.Nf3; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 *;
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/5NP1/PP2PP1P/RNBQKB1R b KQkq - acd 51; ce -10; white_wins 18826; black_wins 13912; draws 14927; Opening ECO:E00o; Catalan: 4.Nf3; 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Nf3 *;
rnbqkb1r/ppp2ppp/4pn2/8/2BP4/4PN2/PP3PPP/RNBQK2R b KQkq - acd 51; ce -15; white_wins 12360; black_wins 9808; draws 11975; Opening ECO:D26b; QGA: 4.e3 e6 5.Bxc4; 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 *;
rn1qkb1r/pbp2ppp/1p2pn2/3p4/2PP4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - acd 51; ce 17; white_wins 9826; black_wins 8098; draws 8227; Opening Queen's Indian Defense: Kasparov-Petrosian Variation. Main Line 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5; CaxtonID: 2567; ECO: E12;
rnbqkb1r/1p2pppp/p2p1n2/8/3NPP2/2N5/PPP3PP/R1BQKB1R b KQkq - acd 51; ce 9; white_wins 6403; black_wins 5865; draws 3628; Opening Sicilian Defense: Najdorf Variation. Amsterdam Variation 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4; CaxtonID: 2156; ECO: B93;
rn1qk2r/pb1pbppp/1p2pn2/8/2PQ4/2N2NP1/PP2PPBP/R1B2RK1 b kq - acd 51; ce -40; white_wins 3467; black_wins 2462; draws 3293; Opening ECO:A30r; English: Symmetrical, Hedgehog, 8.Qxd4; 1.c4 c5 2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.O-O e6 6.Nc3 Be7 7.d4 cxd4 8.Qxd4 *;
rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - acd 50; ce -10; white_wins 379885; black_wins 310077; draws 264647; Opening Sicilian Defense: Misc. Defenses. 1.e4 c5 2.Nf3; CaxtonID: 2139; ECO: B27;
rnbqkb1r/pppppppp/5n2/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 50; ce 30; white_wins 355722; black_wins 275146; draws 288250; Opening Indian Game: General. 1.d4 Nf6; CaxtonID: 828; ECO: A45;
rnbqkb1r/pppp1ppp/4pn2/8/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - acd 50; ce 18; white_wins 170287; black_wins 136007; draws 141612; Opening Indian Game: East Indian Defense. 1.d4 Nf6 2.c4 e6; CaxtonID: 826; ECO: E00;
rnbqkb1r/1p2pppp/p2p1n2/8/3NP3/2N1B3/PPP2PPP/R2QKB1R b KQkq - acd 50; ce -22; white_wins 42853; black_wins 33490; draws 19076; Opening Sicilian Defense: Najdorf Variation. English Attack 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3; CaxtonID: 2158; ECO: B90;
r1bqkb1r/pp1ppppp/2n2n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - acd 50; ce -45; white_wins 29314; black_wins 23913; draws 21361; Opening B33 Sicilian, Sveshnikov (Lasker-Pelikan) Variation: 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 *;
rnbqkbnr/pp2pppp/8/3p4/3P4/8/PPP2PPP/RNBQKBNR w KQkq - acd 50; ce 25; white_wins 9284; black_wins 7963; draws 9664; Opening ECO:B13b; Caro-Kann: Exchange, 3...cxd5; 1.e4 c6 2.d4 d5 3.exd5 cxd5 *;
r1b1kbnr/1pqp1ppp/p1n1p3/8/3NP3/2N1B3/PPP2PPP/R2QKB1R w KQkq - acd 50; ce 19; white_wins 7584; black_wins 6613; draws 5560; Opening ECO:B48; Variation Sicilian: Taimanov variation; Comment *pwo 12/01 nat, bridge to starting root; 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6 6. Be3 Qc7 *;
r1bqkb1r/5ppp/p1np1n2/1p2p1B1/4P3/N1N5/PPP2PPP/R2QKB1R w KQkq - acd 50; ce 26; white_wins 7673; black_wins 5304; draws 6047; Opening ECO:B33; Opening: Sicilian; Variation Pelikan, Chelyabinsk variation; 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 *;
rnbqkbnr/pp1ppppp/8/2p5/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - acd 50; ce -10; white_wins 6593; black_wins 5528; draws 6011; Opening English Opening: Symmetrical Variation. Normal Variation 1.c4 c5 2.Nc3; CaxtonID: 523; ECO: A34;
r1bqk2r/1p2bpp1/p1nppn1p/8/3NP3/2N1B3/PPPQ1PPP/2KR1B1R w kq - acd 50; ce 47; white_wins 5520; black_wins 5084; draws 2742; Opening ECO:B66m; Sicilian: Richter-Rauzer, 7...a6 8.O-O-O h6 9.Be3 Be7; 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6 8.O-O-O h6 9.Be3 Be7 *;
rnbqk2r/ppp1bppp/4pn2/6B1/3PN3/8/PPP2PPP/R2QKBNR w KQkq - acd 50; ce 16; white_wins 4217; black_wins 3132; draws 3500; Opening ECO:C11s; French: Burn, 5.Nxe4 Be7; 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4 5.Nxe4 Be7 *;
rnbqkb1r/ppp1pppp/5n2/3p2B1/3P4/2N5/PPP1PPPP/R2QKBNR b KQkq - acd 50; ce 25; white_wins 944; black_wins 1129; draws 1131; Opening ECO:D01; Opening: Richter-Veresov attack; 1. d4 d5 2. Nc3 Nf6 3. Bg5 *;
rnbqk2r/pppp1ppp/5n2/4B3/1bP5/8/P2PPPPP/RN1QKBNR b KQkq - acd 50; ce 26; white_wins 33; black_wins 38; draws 80; Opening ECO:A00s; Polish: 2...Bxb4 3.Bxe5 Nf6 4.c4; 1.b4 e5 2.Bb2 Bxb4 3.Bxe5 Nf6 4.c4 *;
rnbqkb1r/ppp1pppp/5n2/3p4/1P6/5N2/P1PPPPPP/RNBQKB1R w KQkq - acd 50; ce -10; white_wins 47; black_wins 60; draws 23; Opening ECO:A06; Reti: Santasiere's folly; 1.Nf3 d5 2.b4 Nf6 *;
rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 49; ce 22; white_wins 455845; black_wins 380012; draws 321955; Opening Sicilian Defense: General. 1.e4 c5; CaxtonID: 2099; ECO: B20-;
rnbqk2r/ppppppbp/5np1/8/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - acd 49; ce 37; white_wins 28892; black_wins 19671; draws 21815; Opening ECO:E60; Variation King's Indian: 3.Nf3; Comment (extended) *pwo; 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 *;
rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N1B3/PPP2PPP/R2QKB1R w KQkq - acd 49; ce 38; white_wins 25249; black_wins 19508; draws 8829; Opening ECO:B80e; Sicilian: Scheveningen, 6.Be3 a6; 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 *;
rnbqkbnr/pp3ppp/4p3/2pp4/3PP3/5N2/PPPN1PPP/R1BQKB1R b KQkq - acd 49; ce -20; white_wins 3686; black_wins 2440; draws 3552; Opening French Defense: Tarrasch Variation. Open System Euwe-Keres Line 1.e4 e6 2.d4 d5 3.Nd2 c5 4.Ngf3; CaxtonID: 2836; ECO: C07;
r2qkbnr/pp1n1pp1/2p1p2p/7P/3P4/3Q1NN1/PPP2PP1/R1B1K2R w KQkq - acd 49; ce 16; white_wins 1908; black_wins 1604; draws 2149; Opening ECO:B19k; Caro-Kann: Classical, Spassky, 10.Qxd3 e6; 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6 *;
rnbqkb1r/pp2pppp/2p2n2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R b KQkq - acd 49; ce -9; white_wins 1992; black_wins 1657; draws 1410; Opening ECO:A11; Variation English: Caro-Kann defensive system; Comment (natural line) *pwo; 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. c4 *;
rnbqk2r/pp1p1ppp/4pn2/8/1bPP4/2N5/PP2NPPP/R1BQKB1R b KQkq - acd 49; ce -24; white_wins 1330; black_wins 945; draws 1008; Opening ECO:E42; Nimzo-Indian: 4.e3 c5 5.Ne2 cxd4 6.exd4; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Ne2 cxd4 6.exd4 *;
r1bq1rk1/1ppnbppp/p3pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - acd 49; ce 30; white_wins 737; black_wins 572; draws 702; Opening Queen's Gambit Declined: Orthodox Defense. Hennegerger Variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Rc1 a6; CaxtonID: 1727; ECO: D63;
r1bq1rk1/pp1nbppp/4pn2/2pP2B1/3P4/2N1PN2/PPQ2PPP/R3KB1R b KQ - acd 49; ce -30; white_wins 469; black_wins 302; draws 498; Opening Queen's Gambit Declined: Orthodox Defense. Rubinstein Variation Flohr Line 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2 c5 8.cxd5; CaxtonID: 2842; ECO: D62;
r1bq1rk1/4bppp/p1p5/1p1nR3/8/1BP5/PP1P1PPP/RNBQ2K1 w - - acd 49; ce 29; white_wins 253; black_wins 194; draws 240; Opening Spanish Game: Marshall Attack. Modern Variation 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d5 9.exd5 Nxd5 10.Nxe5; CaxtonID: 2436; ECO: C89;
rnbqkb1r/pppp1ppp/3n4/4p2Q/8/1BN5/PPPP1PPP/R1B1K1NR b KQkq - acd 49; ce -12; white_wins 130; black_wins 142; draws 86; Opening ECO:C27e; Vienna: 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3; 1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 4.Qh5 Nd6 5.Bb3 *;
rnbqkbnr/ppp2ppp/8/4P3/4p3/2N5/PPP2PPP/R1BQKBNR b KQkq - acd 49; ce 14; white_wins 34; black_wins 39; draws 37; Opening Blackmar-Diemer Gambit: Lemberger Countergambit. Endgame Variation 1.d4 d5 2.e4 dxe4 3.Nc3 e5 4.dxe5; CaxtonID: 200; ECO: D00;
rnbqkbnr/pp2pppp/8/2pp4/3PPB2/8/PPP2PPP/RN1QKBNR b KQkq - acd 49; ce 45; white_wins 14; black_wins 22; draws 23; Opening Queen Pawn Game: Morris Countergambit. 1.d4 d5 2.Bf4 c5 3.e4; CaxtonID: 1592; ECO: D00;
rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq - acd 48; ce -16; white_wins 874667; black_wins 685852; draws 642462; Opening ECO:B00; Opening: King's pawn opening; 1. e4 *;
rnbqkbnr/pp2pppp/3p4/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - acd 48; ce 13; white_wins 189835; black_wins 161993; draws 114927; Opening Sicilian Defense: Modern Variations. 1.e4 c5 2.Nf3 d6; CaxtonID: 2141; ECO: B50;
rnbqkb1r/pppppppp/5n2/8/3P4/5N2/PPP1PPPP/RNBQKB1R b KQkq - acd 48; ce -9; white_wins 88529; black_wins 71252; draws 73728; Opening Indian Game: Knights Variation. General 1.d4 Nf6 2.Nf3; CaxtonID: 834; ECO: A46;
r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R b KQkq - acd 48; ce -27; white_wins 35028; black_wins 26564; draws 25738; Opening Sicilian Defense: Paulsen Variation. Normal Variation 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3; CaxtonID: 2221; ECO: B45;
rnbqkb1r/p1pp1ppp/1p2pn2/8/2PP4/5NP1/PP2PP1P/RNBQKB1R b KQkq - acd 48; ce -17; white_wins 31310; black_wins 21972; draws 26554; Opening Queen's Indian Defense: Fianchetto Variation. General 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3; CaxtonID: 1812; ECO: E15;
r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPP1PPP/R1BQKBNR w KQkq - acd 48; ce 20; white_wins 22459; black_wins 20980; draws 15005; Opening Sicilian Defense: Closed Variation. Traditional 1.e4 c5 2.Nc3 Nc6; CaxtonID: 2059; ECO: B25;
rnbqkb1r/pp1ppppp/5n2/2p5/2P5/2N2N2/PP1PPPPP/R1BQKB1R b KQkq - acd 48; ce -27; white_wins 16568; black_wins 12305; draws 15738; Opening ECO:A34; Variation English: symmetrical, three knights; Comment *pwo 1/02 A30/07/33 redirection (3.Nc3), mcmo; 1. c4 c5 2. Nf3 Nf6 3. Nc3 *;
rnbqkb1r/ppp1pppp/5n2/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq - acd 48; ce -28; white_wins 10811; black_wins 7759; draws 9826; Opening Queen's Gambit Accepted: Normal Variation. 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3; CaxtonID: 1661; ECO: D25;
r1bqk1nr/pppp1ppp/2n5/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - acd 48; ce 18; white_wins 9549; black_wins 8690; draws 7146; Opening Italian Game: Italian Variation. 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5; CaxtonID: 911; ECO: C50;
r1b1kb1r/1pqp1ppp/p1n1pn2/8/3NP3/2N1B3/PPP1BPPP/R2Q1RK1 b kq - acd 48; ce -24; white_wins 7858; black_wins 5701; draws 5610; Opening ECO:B49f; Sicilian: Taimanov, 6.Be3 a6 7.Be2 Nf6 8.O-O; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O *;
rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR b KQ - acd 48; ce -23; white_wins 7438; black_wins 5466; draws 4912; Opening ECO:E81j; King's Indian: Sämisch, 5...O-O 6.Be3; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 *;
r1bqkbnr/pp1ppppp/2n5/2p5/2P5/5N2/PP1PPPPP/RNBQKB1R w KQkq - acd 48; ce 10; white_wins 6586; black_wins 4765; draws 6431; Opening ECO:A30; Variation English: symmetrical; Comment *pwo add; 1. c4 c5 2. Nf3 Nc6 *;
r1bqk2r/pppp1ppp/2n2n2/2b1p3/2B1P3/2PP1N2/PP3PPP/RNBQK2R b KQkq - acd 48; ce -17; white_wins 6565; black_wins 5282; draws 4793; Opening Italian Game: Classical Variation. Giuoco Pianissimo 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d3; CaxtonID: 868; ECO: C53;
rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPP1P/RNBQKB1R w KQkq - acd 48; ce 27; white_wins 5285; black_wins 4609; draws 5589; Opening English Opening: Agincourt Defense. Catalan Defense 1.c4 e6 2.Nf3 d5 3.g3 d5; CaxtonID: 2778; ECO: A13;
r1bqk2r/ppp1bppp/1nn5/4p3/8/2N2NP1/PP1PPPBP/R1BQ1RK1 w kq - acd 48; ce 16; white_wins 5114; black_wins 4128; draws 4090; Opening ECO:A29; English: Four Knights, 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7; 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 d5 5.cxd5 Nxd5 6.Bg2 Nb6 7.O-O Be7 *;
r1bqkb1r/pppp1ppp/2n2n2/4p3/2B1P3/3P1N2/PPP2PPP/RNBQK2R b KQkq - acd 48; ce -23; white_wins 5184; black_wins 3889; draws 4074; Opening Italian Game: Two Knights Defense. Modern Bishop's Opening 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d3; CaxtonID: 934; ECO: C55;
rnbqkbnr/ppp1pppp/8/3p4/8/6P1/PPPPPPBP/RNBQK1NR b KQkq - acd 48; ce 15; white_wins 2038; black_wins 1874; draws 2240; Opening ECO:A00v; Benko Opening; 1.g3 d5 2.Bg2 *;
rnbqkb1r/pp1p1ppp/4pn2/8/2PN4/2N5/PP2PPPP/R1BQKB1R b KQkq - acd 48; ce -9; white_wins 1596; black_wins 1336; draws 1676; Opening ECO:A32; English: Symmetrical, Two Knights, 5.Nc3; 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 *;
r1b2rk1/ppq2ppp/2n1pn2/2pp4/2PP4/P1PBPN2/5PPP/R1BQ1RK1 w - - acd 48; ce 15; white_wins 1361; black_wins 1437; draws 1025; Opening ECO:E58; Nimzo-Indian: Main Line, 9.bxc3 Qc7; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6 8.a3 Bxc3 9.bxc3 Qc7 *;
rnbqkb1r/pp2pppp/2p2n2/3p4/3P4/5NP1/PPP1PP1P/RNBQKB1R w KQkq - acd 48; ce 10; white_wins 1143; black_wins 1079; draws 854; Opening ECO:D02s; Queen's Pawn: 3.g3 c6; 1.d4 d5 2.Nf3 Nf6 3.g3 c6 *;
rnbqkbnr/pppppppp/8/8/1P6/8/P1PPPPPP/RNBQKBNR b KQkq - acd 48; ce 10; white_wins 762; black_wins 946; draws 732; Opening Polish Opening: General. 1.b4; CaxtonID: 1545; ECO: A00;
r1bqkb1r/pp1p1ppp/2p2n2/4p3/B2nP3/2N2N2/PPPP1PPP/R1BQK2R w KQkq - acd 48; ce -15; white_wins 605; black_wins 432; draws 336; Opening ECO:C48o; Four Knights: Rubinstein, 5.Ba4 c6; 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 5.Ba4 c6 *;
rnbqk1nr/pppp1ppp/8/4B3/1b6/8/P1PPPPPP/RN1QKBNR b KQkq - acd 48; ce 14; white_wins 102; black_wins 130; draws 157; Opening ECO:A00s; Polish: 2...Bxb4 3.Bxe5; 1.b4 e5 2.Bb2 Bxb4 3.Bxe5 *;
rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq - acd 47; ce -10; white_wins 105693; black_wins 76752; draws 99160; Opening Queen's Gambit: General. 1.d4 d5 2.c4; CaxtonID: 1625; ECO: D06;
rnbqkb1r/pppppp1p/5np1/8/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - acd 47; ce -17; white_wins 66058; black_wins 45372; draws 50489; Opening ECO:E61; Opening: King's Indian defence, 3.Nc3; 1. d4 Nf6 2. c4 g6 3. Nc3 *;
rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - acd 47; ce 16; white_wins 43250; black_wins 32539; draws 42478; Opening ECO:D11g; Slav: 3.Nf3 Nf6; 1.d4 d5 2.c4 c6 3.Nf3 Nf6 *;
rnbqkbnr/ppp1pppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R b KQkq - acd 47; ce -17; white_wins 11291; black_wins 7954; draws 9674; Opening Queen's Gambit Accepted: Normal Variation. 1.d4 d5 2.c4 dxc4 3.Nf3; CaxtonID: 1660; ECO: D21;
rnbqkbnr/pp1p1ppp/4p3/2p5/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - acd 47; ce -21; white_wins 11958; black_wins 8938; draws 7764; Opening ECO:B40; Variation Sicilian (Nimzovich-Rossolimo & Kan); Comment *pwo 11/01 (D.J.N. Vega); 1. e4 c5 2. Nf3 e6 3. Nc3 *;
rnbqkb1r/pp2pppp/5n2/3p4/2PP4/2N5/PP3PPP/R1BQKBNR b KQkq - acd 47; ce -10; white_wins 8308; black_wins 6364; draws 8384; Opening Caro-Kann Defense: Panov Attack. 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3; CaxtonID: 296; ECO: B13;
rnbqk2r/ppp1ppbp/6p1/8/3PP3/2P5/P4PPP/R1BQKBNR w KQkq - acd 47; ce 14; white_wins 7483; black_wins 5601; draws 7573; Opening ECO:D85d; Grünfeld: Exchange, 5.e4 Nxc3 6.bxc3 Bg7; 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 Bg7 *;
rnbq1rk1/ppppppbp/5np1/8/3P4/5NP1/PPP1PPBP/RNBQK2R w KQ - acd 47; ce 13; white_wins 3487; black_wins 2536; draws 3666; Opening ECO:A49; Neo-King's Indian: Fianchetto System; 1.d4 Nf6 2.Nf3 g6 3.g3 Bg7 4.Bg2 O-O *;
rnbqk2r/ppppppbp/5np1/8/2P1P3/2N2N2/PP1P1PPP/R1BQKB1R b KQkq - acd 47; ce -49; white_wins 3685; black_wins 2671; draws 2968; Opening English Opening: Anglo-Indian Defense. Anti-Anti-Grünfeld 1.c4 Nf6 2.Nc3 g6 3.Nf3 Bg7 4.e4; CaxtonID: 439; ECO: A17;
rnbqkb1r/1pp2ppp/p3pn2/8/2BP4/4PN2/PP3PPP/RNBQ1RK1 b kq - acd 47; ce -12; white_wins 2274; black_wins 1940; draws 2123; Opening ECO:D26d; QGA: 4.e3 e6 5.Bxc4 a6 6.O-O; 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 a6 6.O-O *;
r1bqk2r/pp1pppbp/2n2np1/2p5/2P5/2N2NP1/PP1PPPBP/R1BQK2R w KQkq - acd 47; ce 33; white_wins 2197; black_wins 1595; draws 2220; Opening English Opening: Symmetrical Variation. Full Symmetry Line 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6; CaxtonID: 518; ECO: A38;
rn1qk2r/1b2bppp/pp1ppn2/8/2PQ4/2N2NP1/PP2PPBP/R1BR2K1 w kq - acd 47; ce 55; white_wins 1156; black_wins 865; draws 1127; Opening ECO:A30; Variation English: symmetrical, hedgehog, flexible formation; Comment *pwo 3/02 nat; 1. c4 Nf6 2. Nf3 c5 3. Nc3 e6 4. g3 b6 5. Bg2 Bb7 6. O-O Be7 7. d4 cxd4 8. Qxd4 d6 9. Rd1 a6 *;
r2qkb1r/1ppb1ppp/p1n1pn2/8/2pP4/4PNP1/PP2QPBP/RNB2RK1 b kq - acd 47; ce -53; white_wins 1228; black_wins 1322; draws 485; Opening E04; Open Catalan;
rnbqkb1r/ppp1pppp/5n2/8/3P4/2N2N2/PPP3PP/R1BQKB1R b KQkq - acd 47; ce 45; white_wins 914; black_wins 1137; draws 722; Opening ECO:D00; Variation Blackmar-Diemer: Euwe defence; Comment *pwo 10/01 add (5...e6/g6) (per Tom Purser); 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 exf3 5. Nxf3 *;
r1bqkb1r/pp2pppp/n1p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - acd 47; ce 51; white_wins 340; black_wins 235; draws 264; Opening Slav Defense: Smyslov Variation. 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Na6; CaxtonID: 2337; ECO: D16;
r1bqkb1r/p4pp1/2p2n1p/n3N3/4p3/8/PPPPBPPP/RNBQK2R b KQkq - acd 47; ce 9; white_wins 267; black_wins 248; draws 198; Opening ECO:C59c; Two Knights: Morphy, Main Line 9.Nf3 e4 10.Ne5; 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5 6.Bb5+ c6 7.dxc6 bxc6 8.Be2 h6 9.Nf3 e4 10.Ne5 *;
rnbqkb1r/ppp2ppp/4pn2/3p4/3PP3/2NB4/PPP2PPP/R1BQK1NR b KQkq - acd 47; ce 13; white_wins 224; black_wins 157; draws 165; Opening French Defense: Classical Variation. Swiss Variation 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bd3; CaxtonID: 624; ECO: C11;
rnbqkbnr/pp2pppp/3p4/2p5/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - acd 46; ce -24; white_wins 162341; black_wins 137058; draws 92281; Opening ECO:B53a; Sicilian: 2...d6 3.d4; 1.e4 c5 2.Nf3 d6 3.d4 *;
rnbqkbnr/ppp1pppp/8/3p4/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 46; ce 12; white_wins 137499; black_wins 104009; draws 128061; Opening Queen Pawn Game: General. 1.d4 d5; CaxtonID: 1583; ECO: D00;
rnbqkbnr/pp1p1ppp/4p3/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 46; ce -38; white_wins 66155; black_wins 51102; draws 51204; Opening ECO:B40l; Sicilian: Open, 2...e6, 4.Nxd4; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 *;
rnbqkb1r/ppp1pppp/5n2/3p4/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - acd 46; ce 14; white_wins 48657; black_wins 42016; draws 41790; Opening Queen Pawn Game: Symmetrical Variation. 1.d4 d5 2.Nf3 Nf6; CaxtonID: 1599; ECO: D02;
r1bqkbnr/pp1p1ppp/2n1p3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 46; ce 25; white_wins 32184; black_wins 25594; draws 25786; Opening Sicilian Defense: Paulsen Variation. General 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6; CaxtonID: 2219; ECO: B44;
r1bqk2r/2ppbppp/p1n2n2/1p2p3/4P3/1B3N2/PPPP1PPP/RNBQR1K1 b kq - acd 46; ce -27; white_wins 25197; black_wins 17159; draws 19880; Opening ECO:C88; Opening: Ruy Lopez; Variation closed; 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 *;
rnbqk2r/ppp1ppbp/5np1/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - acd 46; ce 13; white_wins 12831; black_wins 9820; draws 11305; Opening Gruenfeld Defense: Three Knights Variation. 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7; CaxtonID: 790; ECO: D90;
rnbqkb1r/1p3ppp/p2ppn2/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - acd 46; ce 48; white_wins 13203; black_wins 11453; draws 8701; Opening Sicilian Defense: Scheveningen Variation. Classical Variation 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6; CaxtonID: 2249; ECO: B84;
rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - acd 46; ce 15; white_wins 10833; black_wins 8794; draws 11209; Opening Queen's Gambit Accepted: Classical Defense. Main Lines 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6; CaxtonID: 1643; ECO: D27;
rn1qkb1r/pbpp1ppp/1p2pn2/8/2PP4/P1N2N2/1P2PPPP/R1BQKB1R b KQkq - acd 46; ce -17; white_wins 11217; black_wins 8938; draws 9276; Opening Queen's Indian Defense: Kasparov-Petrosian Variation. 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3; CaxtonID: 1817; ECO: E17;
rnbqkb1r/pp2pppp/2p2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - acd 46; ce 31; white_wins 11043; black_wins 7801; draws 9695; Opening Slav Defense: Two Knights Attack. 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4; CaxtonID: 2342; ECO: D15;
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2N1PN2/PPQ1BPPP/R1B1K2R b KQkq - acd 46; ce -10; white_wins 8664; black_wins 7639; draws 7376; Opening ECO:D45v; Semi-Slav: 6.Qc2 Bd6 7.Be2; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Qc2 Bd6 7.Be2 *;
r1bqk1nr/pppp1ppp/2n5/2b5/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 46; ce 10; white_wins 5356; black_wins 4347; draws 4199; Opening Scotch Game: Classical Variation. 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5; CaxtonID: 1925; ECO: C45;
rnbqkb1r/pp1ppppp/8/2pnP3/8/2P2N2/PP1P1PPP/RNBQKB1R b KQkq - acd 46; ce -10; white_wins 4529; black_wins 3552; draws 3320; Opening ECO:B22p; Sicilian: Alapin, 2...Nf6 3.e5 Nd5 4.Nf3; 1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 *;
r1bq1rk1/1p2bppp/p1nppn2/8/P2NPP2/2N1B3/1PP1B1PP/R2Q1RK1 b - - acd 46; ce -18; white_wins 3586; black_wins 3029; draws 2383; Opening ECO:B85; Sicilian: Scheveningen, Classical, Main Line, 9...Nc6 10.a4; 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be2 a6 7.O-O Be7 8.f4 O-O 9.Be3 Nc6 10.a4 *;
rnbqkb1r/pppppppp/8/8/3PnB2/8/PPP1PPPP/RN1QKBNR b KQkq - acd 46; ce -16; white_wins 3347; black_wins 2506; draws 2239; Opening ECO:A45u; Trompowsky: 2...Ne4 3.Bf4; 1.d4 Nf6 2.Bg5 Ne4 3.Bf4 *;
rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPPNPPP/RNBQKB1R b KQkq - acd 46; ce -27; white_wins 2915; black_wins 2189; draws 1861; Opening Sicilian Defense: Chameleon. 1.e4 c5 2.Ne2; CaxtonID: 2043; ECO: B20;
r1bqk1nr/pp1pppbp/2n3p1/1Bp5/4P3/5N2/PPPP1PPP/RNBQR1K1 b kq - acd 46; ce -39; white_wins 2312; black_wins 1609; draws 2025; Opening ECO:B31j; Sicilian: Rossolimo, 3...g6 4.O-O Bg7 5.Re1; 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 *;
rnbqkbnr/pp2pppp/8/3p4/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq - acd 46; ce -28; white_wins 1538; black_wins 1357; draws 2779; Opening ECO:D10e; Slav: Exchange, 4.Nc3; 1.d4 d5 2.c4 c6 3.cxd5 cxd5 4.Nc3 *;
rnbqkbnr/ppp1pp1p/3p2p1/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - acd 46; ce 36; white_wins 1941; black_wins 1402; draws 1896; Opening ECO:A41e; Neo-Old Indian / Modern; 1.d4 d6 2.Nf3 g6 *;
r1bqkb1r/pp2pp1p/2np1np1/8/3NP3/2N5/PPP1BPPP/R1BQK2R w KQkq - acd 46; ce 27; white_wins 1237; black_wins 1437; draws 1240; Opening ECO:B70i; Sicilian: Dragon, 6.Be2 Nc6; 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Nc6 *;
r1b1kb1r/pp3ppp/3qpn2/8/2BN4/8/PPP2PPP/R1BQ1RK1 b kq - acd 46; ce -21; white_wins 1323; black_wins 1010; draws 1463; Opening ECO:C07q; French: Tarrasch, Open, 4.exd5 Qxd5, Main Line, 10.Nxd4; 1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 Qxd5 5.Ngf3 cxd4 6.Bc4 Qd6 7.O-O Nf6 8.Nb3 Nc6 9.Nbxd4 Nxd4 10.Nxd4 *;
rnbqk2r/pp3ppp/4p3/3n4/1b1P4/2N2N2/PP1B1PPP/R2QKB1R b KQkq - acd 46; ce -10; white_wins 1271; black_wins 1050; draws 1430; Opening ECO:B14v; Caro-Kann: Panov-Botvinnik, 5...e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Bd2; 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 e6 6.Nf3 Bb4 7.cxd5 Nxd5 8.Bd2 *;
r1bqk2r/pppp1ppp/2n1pn2/8/1bPP4/2N2N2/PPQ1PPPP/R1B1KB1R b KQkq - acd 46; ce -38; white_wins 1583; black_wins 1088; draws 1072; Opening ECO:E33; Nimzo-Indian: Classical, 4...Nc6 5.Nf3; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qc2 Nc6 5.Nf3 *;
rnbqkb1r/ppp2ppp/4pn2/3p4/3P4/3BPN2/PPP2PPP/RNBQK2R b KQkq - acd 46; ce -17; white_wins 1361; black_wins 1229; draws 892; Opening Queen Pawn Game: Zukertort Variation. 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3; CaxtonID: 1621; ECO: D05;
rnbq1rk1/1pp2pbp/3p1np1/p2Pp1B1/2P1P3/2N2N2/PP2BPPP/R2QK2R b KQ - acd 46; ce -33; white_wins 1422; black_wins 1143; draws 913; Opening ECO:E92s; King's Indian: Petrosian, Stein, 8.Bg5; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.d5 a5 8.Bg5 *;
rnbqkbnr/ppp1pppp/8/3p4/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - acd 46; ce 14; white_wins 1365; black_wins 1175; draws 852; Opening Queen Pawn Game: Veresov Attack. 1.d4 d5 2.Nc3; CaxtonID: 1615; ECO: D00;
rnbqkbnr/1p3ppp/p7/2pp4/3P4/5N2/PPPN1PPP/R1BQKB1R w KQkq - acd 46; ce 22; white_wins 1203; black_wins 861; draws 1192; Opening ECO:C08h; French: Tarrasch, Open, 4.exd5 exd5 5.Ngf3 a6; 1.e4 e6 2.d4 d5 3.Nd2 c5 4.exd5 exd5 5.Ngf3 a6 *;
rn1q1rk1/pbpp1ppp/1p2pn2/8/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 b - - acd 46; ce -20; white_wins 1298; black_wins 1045; draws 894; Opening ECO:E43; Nimzo-Indian: Nimzowitsch, 5.Nf3 Bb7 6.Bd3 O-O 7.O-O; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Nf3 Bb7 6.Bd3 O-O 7.O-O *;
r1bqkb1r/pppp1ppp/2n2n2/4p3/2P5/P1N2N2/1P1PPPPP/R1BQKB1R b KQkq - acd 46; ce 9; white_wins 1191; black_wins 1033; draws 906; Opening English Opening: King's English Variation. Four Knights Variation Korchnoi Line 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.a3; CaxtonID: 481; ECO: A28;
rnbqkbnr/1pp2ppp/p3p3/8/2BP4/4PN2/PP3PPP/RNBQK2R b KQkq - acd 46; ce -28; white_wins 960; black_wins 746; draws 1031; Opening ECO:D22d; QGA: Alekhine, 4.e3 e6 5.Bxc4; 1.d4 d5 2.c4 dxc4 3.Nf3 a6 4.e3 e6 5.Bxc4 *;
rnbqkbnr/ppp1pppp/8/8/3Pp3/8/PPP2PPP/RNBQKBNR w KQkq - acd 46; ce -55; white_wins 865; black_wins 1087; draws 645; Opening ECO:D00l; Blackmar-Diemer Gambit (BDG): 2.e4 dxe4; 1.d4 d5 2.e4 dxe4 *;
r3kb1r/pp1qpppp/2np1n2/2p5/2P1P3/2N2N2/PP1P1PPP/R1BQK2R w KQkq - acd 46; ce 27; white_wins 873; black_wins 772; draws 895; Opening ECO:B52l; Sicilian: 3.Bb5+, Sokolsky, 5...Nc6 6.Nc3 Nf6; 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4 Nc6 6.Nc3 Nf6 *;
r1bqkb1r/pp3ppp/2P2n2/nB2p1N1/8/8/PPPP1PPP/RNBQK2R b KQkq - acd 46; ce -20; white_wins 991; black_wins 791; draws 524; Opening C58:two knights defence, Bogolyubov variation;
r1bqkb1r/1ppn1ppp/p3pn2/8/Q1pP4/5NP1/PP2PPBP/RNB1K2R w KQkq - acd 46; ce 16; white_wins 562; black_wins 641; draws 679; Opening ECO:E02; Catalan: Open, 5.Qa4+ Nbd7 6.Nf3 a6; 1.d4 Nf6 2.c4 e6 3.g3 d5 4.Bg2 dxc4 5.Qa4+ Nbd7 6.Nf3 a6 *;
rnbqkbnr/ppp1pppp/8/3p4/3P4/4P3/PPP2PPP/RNBQKBNR b KQkq - acd 46; ce -16; white_wins 528; black_wins 756; draws 396; Opening ECO:D00d; Queen's Pawn: 2.e3; 1.d4 d5 2.e3 *;
rnbqk2r/pp2ppbp/5np1/3P4/3P4/2N5/PP3PPP/R1BQKBNR w KQkq - acd 46; ce 30; white_wins 433; black_wins 287; draws 404; Opening Caro-Kann Defense: Panov Attack. Fianchetto Defense Fianchetto Gambit 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 Nf6 5.Nc3 g6 6.cxd5 Bg7; CaxtonID: 299; ECO: B13;
rnbq1rk1/pp3pb1/3p1npp/2pP4/4P3/2N1BP2/PP1Q2PP/R3KBNR b KQ - acd 46; ce -32; white_wins 312; black_wins 271; draws 234; Opening ECO:A65t; Benoni: Sämisch, 8.Bg5 h6 9.Be3 O-O 10.Qd2; 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f3 Bg7 8.Bg5 h6 9.Be3 O-O 10.Qd2 *;
rnbqkb1r/pp3p1p/3p1np1/2pP2B1/8/2N2N2/PP2PPPP/R2QKB1R b KQkq - acd 46; ce -11; white_wins 313; black_wins 262; draws 200; Opening Benoni Defense: Uhlmann Variation. 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.Bg5; CaxtonID: 120; ECO: A61;
rn3rk1/p1p1qpp1/1p2p2p/3b4/3P4/4PN2/PP3PPP/2RQKB1R w K - acd 46; ce -9; white_wins 188; black_wins 238; draws 328; Opening ECO:D59f; QGD: Tartakower, 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Rc1 Bb7 11.Nxd5 Bxd5; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Rc1 Bb7 11.Nxd5 Bxd5 *;
r1bqk1nr/pppp1ppp/2n5/b7/2B1P3/2p2N2/P4PPP/RNBQ1RK1 w kq - acd 46; ce 17; white_wins 139; black_wins 162; draws 77; Opening Italian Game: Evans Gambit. Compromised Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 exd4 7.O-O dxc3; CaxtonID: 884; ECO: C52;
r1bqkb1r/pp3ppp/2n1pn2/2pp4/3P1B2/2PBPN2/PP3PPP/RN1QK2R b KQkq - acd 46; ce 16; white_wins 130; black_wins 141; draws 33; Opening D02q; Queen's Pawn; London;
rnbqk2r/pp2ppbp/1n1p2p1/8/2PP4/5N2/PP2BPPP/RNBQK2R w KQkq - acd 46; ce 56; white_wins 123; black_wins 95; draws 76; Opening ECO:B03; Variation Alekhine's defence: exchange, Karpov variation; Comment (orig) shortened; 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nf3 g6 7. Be2 Bg7 *;
rn3rk1/pbp1qpp1/1p2p2p/3n4/3P4/2NBPN2/PP3PPP/2RQK2R b K - acd 46; ce 15; white_wins 49; black_wins 81; draws 112; Opening ECO:D59g; QGD: Tartakower, 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Rc1 Bb7 11.Bd3; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 h6 7.Bh4 b6 8.cxd5 Nxd5 9.Bxe7 Qxe7 10.Rc1 Bb7 11.Bd3 *;
r4rk1/p2q1ppp/1np1pb1B/8/3P2Q1/2N5/PP3PPP/R2R2K1 b - - acd 46; ce -30; white_wins 6; black_wins 5; draws 7; Opening B22; Sicilian Alapin;
rnbqkbnr/pppp1ppp/8/4p3/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 45; ce 25; white_wins 152711; black_wins 118397; draws 123323; Opening King Pawn Game: General. 1.e4 e5; CaxtonID: 971; ECO: C20;
rnbqkbnr/pp2pppp/3p4/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 45; ce 24; white_wins 155399; black_wins 132865; draws 88772; Opening ECO:B53; Variation Sicilian defence; 1. e4 c5 2. Nf3 d6 3. d4 cxd4 *;
rnbqkb1r/pp2pppp/3p1n2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 45; ce 30; white_wins 146973; black_wins 125286; draws 83647; Opening Sicilian Defense: Modern Variations. Main Line 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6; CaxtonID: 2145; ECO: B57;
rnbqkb1r/pppp1ppp/4pn2/8/3P4/5N2/PPP1PPPP/RNBQKB1R w KQkq - acd 45; ce 11; white_wins 30725; black_wins 25337; draws 28116; Opening ECO:A46; Variation Queen's pawn game; 1. d4 Nf6 2. Nf3 e6 *;
rnbqkbnr/ppp1pppp/3p4/8/3P4/8/PPP1PPPP/RNBQKBNR w KQkq - acd 45; ce 44; white_wins 15136; black_wins 10663; draws 12126; Opening Rat Defense: See also: Modern Defense (for lines with ...g6). 1.d4 d6; CaxtonID: 1834; ECO: A41;
r1bqkbnr/1p1p1ppp/p1n1p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - acd 45; ce 29; white_wins 10325; black_wins 7630; draws 7235; Opening Sicilian Defense: Paulsen Variation. 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6; CaxtonID: 2211; ECO: B46;
rnbqkbnr/ppp1pp1p/3p2p1/8/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - acd 45; ce 47; white_wins 8851; black_wins 6118; draws 6534; Opening ECO:B06; Variation Robatsch defence; Comment *pwo (corrected fm A10); 1. e4 g6 2. d4 d6 *;
r1b1kbnr/ppqp1ppp/2n1p3/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - acd 45; ce -30; white_wins 7476; black_wins 5633; draws 5892; Opening ECO:B47q; Sicilian: Taimanov, 6.Be2; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 *;
rnbqkb1r/pp3pp1/2p1pn1p/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - acd 45; ce 20; white_wins 6460; black_wins 5889; draws 5551; Opening ECO:D43k; Semi-Slav: Moscow Variation; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 h6 *;
rnbqkb1r/ppp2ppp/4pn2/6B1/3Pp3/2N5/PPP2PPP/R2QKBNR w KQkq - acd 45; ce 26; white_wins 5962; black_wins 4520; draws 5184; Opening French Defense: Classical Variation. Burn Variation 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 dxe4; CaxtonID: 611; ECO: C11;
rnbqkb1r/ppp2ppp/4pn2/3p4/2P5/5NP1/PP1PPPBP/RNBQK2R b KQkq - acd 45; ce -14; white_wins 5349; black_wins 4560; draws 5726; Opening ECO:A13s; English: Neo-Catalan; 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 *;
rnb1kb1r/pp2pppp/5n2/2pq4/3P4/2P2N2/PP3PPP/RNBQKB1R b KQkq - acd 45; ce -15; white_wins 5378; black_wins 4541; draws 5491; Opening ECO:B22j; Sicilian: Alapin, 2...d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3; 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 *;
r1bq1rk1/pp3ppp/2n1pn2/2pp4/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - acd 45; ce 50; white_wins 4446; black_wins 4132; draws 3578; Opening Nimzo-Indian Defense: Normal Variation. Gligoric System Bernstein Defense 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O Nc6; CaxtonID: 1378; ECO: E56;
r1b1k2r/1pqp1ppp/p1n1pn2/8/Nb1NP3/4B3/PPP1BPPP/R2Q1RK1 b kq - acd 45; ce -45; white_wins 3436; black_wins 2348; draws 2393; Opening ECO:B49j; Sicilian: Taimanov, 6.Be3 a6 7.Be2 Nf6 8.O-O Bb4 9.Na4; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2 Nf6 8.O-O Bb4 9.Na4 *;
rnbqkb1r/pp1p1ppp/4pn2/2p5/2PP4/6P1/PP2PP1P/RNBQKBNR w KQkq - acd 45; ce 28; white_wins 2933; black_wins 2387; draws 2093; Opening ECO:E00h; Catalan: 3...c5; 1.d4 Nf6 2.c4 e6 3.g3 c5 *;
rnbqk2r/pppp1ppp/4pn2/8/1bPP4/6P1/PP2PP1P/RNBQKBNR w KQkq - acd 45; ce 23; white_wins 2912; black_wins 2132; draws 2349; Opening ECO:E00i; Catalan: 3...Bb4+; 1.d4 Nf6 2.c4 e6 3.g3 Bb4+ *;
rn2kb1r/pp2pppp/5n2/2pq4/3P2b1/2P2N2/PP3PPP/RNBQKB1R w KQkq - acd 45; ce 27; white_wins 2281; black_wins 1840; draws 2503; Opening Sicilian Defense: Alapin Variation. Barmen Defense Modern Line 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4; CaxtonID: 2024; ECO: B22;
r1b1kbnr/pp3ppp/1qn1p3/2ppP3/3P4/P1P2N2/1P3PPP/RNBQKB1R b KQkq - acd 45; ce -23; white_wins 2839; black_wins 2073; draws 1624; Opening French Defense: Advance Variation. Main Line 1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6 6.a3; CaxtonID: 588; ECO: C02;
r1bqkbnr/pppp1ppp/2n5/4p3/2P5/6P1/PP1PPPBP/RNBQK1NR b KQkq - acd 45; ce -14; white_wins 2185; black_wins 1808; draws 1854; Opening ECO:A20; English: King's, 2.g3 Nc6 3.Bg2; 1.c4 e5 2.g3 Nc6 3.Bg2 *;
r1bq1rk1/2ppbppp/p1n2n2/1p2p3/P3P3/1B3N2/1PPP1PPP/RNBQR1K1 b - - acd 45; ce -21; white_wins 2311; black_wins 1745; draws 1649; Opening ECO:C88; Opening: Ruy Lopez; Variation closed, anti-Marshall 8.a4; 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. a4 *;
r1bqkb1r/pppp1ppp/2n2n2/4p1N1/2B1P3/8/PPPP1PPP/RNBQK2R b KQkq - acd 45; ce -22; white_wins 1991; black_wins 1425; draws 965; Opening Italian Game: Two Knights Defense. Knight Attack 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5; CaxtonID: 931; ECO: C57;
r1bq1rk1/ppp1ppbp/1nn3p1/8/3P4/2N1PNP1/PP3PBP/R1BQ1RK1 b - - acd 45; ce -14; white_wins 1567; black_wins 1023; draws 1550; Opening ECO:D76; Variation Neo-Gruenfeld: 6.cxd5 Nxd5; Comment *pwo 11/01 add, nat (same as above D76/24); 1. Nf3 Nf6 2. g3 g6 3. c4 Bg7 4. Bg2 O-O 5. O-O d5 6. cxd5 Nxd5 7. Nc3 Nb6 8. d4 Nc6 9. e3 *;
r1bq1rk1/pp1pppbp/2n2np1/2p5/2PP4/2N2NP1/PP2PPBP/R1BQ1RK1 b - - acd 45; ce -18; white_wins 1547; black_wins 1028; draws 1550; Opening English Opening: Symmetrical Variation. Mecking Variation 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6 6.O-O O-O 7.d4; CaxtonID: 521; ECO: A39;
r2qkb1r/pp2pppp/2n2n2/3p1b2/3P1B2/2N2N2/PP2PPPP/R2QKB1R w KQkq - acd 45; ce 17; white_wins 833; black_wins 689; draws 2448; Opening Slav Defense: Exchange Variation. Symmetrical Line 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.cxd5 cxd5 5.Nc3 Nc6 6.Bf4 Bf5; CaxtonID: 2326; ECO: D14;
rnbqkbnr/pp1ppp1p/6p1/2p5/2P5/6P1/PP1PPP1P/RNBQKBNR w KQkq - acd 45; ce 17; white_wins 1334; black_wins 1121; draws 1368; Opening ECO:A30a; English: Symmetrical, 2.g3 g6; 1.c4 c5 2.g3 g6 *;
rnbqkb1r/pppppp1p/5np1/8/2P5/2N3P1/PP1PPP1P/R1BQKBNR b KQkq - acd 45; ce -27; white_wins 1402; black_wins 1019; draws 1295; Opening ECO:A16; English: Anglo-Indian, 2.Nc3 g6 3.g3; 1.c4 Nf6 2.Nc3 g6 3.g3 *;
rnbqkb1r/3ppppp/pP3n2/2pP4/8/8/PP2PPPP/RNBQKBNR b KQkq - acd 45; ce -27; white_wins 1328; black_wins 971; draws 883; Opening Benko Gambit: Accepted. Pawn Return Variation 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.b6; CaxtonID: 63; ECO: A57;
rnbqkb1r/pp3ppp/3p1n2/2pP4/8/6P1/PP2PP1P/RNBQKBNR w KQkq - acd 45; ce 24; white_wins 1245; black_wins 987; draws 788; Opening BI 2;
r1bqk2r/pp3ppp/2nppn2/2p5/2PP4/2PBPN2/P4PPP/R1BQK2R w KQkq - acd 45; ce 24; white_wins 1027; black_wins 1112; draws 815; Opening Nimzo-Indian Defense: Huebner Variation. Main Line 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 Bxc3+ 7.bxc3 d6; CaxtonID: 1360; ECO: E41;
rnbqkbnr/1pp1pppp/p7/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq - acd 45; ce -33; white_wins 1123; black_wins 728; draws 1065; Opening ECO:D22; Variation QGA: Alekhine defence (4.e3); Comment *pwo 11/01 add; 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 *;
rnbqkbnr/ppp1pppp/8/8/3Pp3/2N5/PPP2PPP/R1BQKBNR b KQkq - acd 45; ce 49; white_wins 858; black_wins 1075; draws 645; Opening ECO:D00; Variation Blackmar-Diemer gambit; Comment *pwo 3/01; 1. d4 d5 2. e4 dxe4 3. Nc3 *;
rnbq1rk1/pp2bppp/2p2n2/3p2B1/3P4/2NBP3/PPQ2PPP/R3K1NR b KQ - acd 45; ce -18; white_wins 853; black_wins 564; draws 792; Opening ECO:D36f; QGD: Exchange, 6.Qc2 Be7 7.e3 O-O 8.Bd3; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5 5.Bg5 c6 6.Qc2 Be7 7.e3 O-O 8.Bd3 *;
rn1qkb1r/ppp1pppp/5n2/8/3P2b1/2N2N2/PPP3PP/R1BQKB1R w KQkq - acd 45; ce -32; white_wins 630; black_wins 789; draws 520; Opening Blackmar-Diemer Gambit: Teichmann Variation. 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nxf3 Bg4; CaxtonID: 212; ECO: D00;
r1bq1rk1/pp1nppbp/2pp1np1/8/P2PP3/2N2N2/1PP1BPPP/R1BQ1RK1 w - - acd 45; ce 51; white_wins 553; black_wins 417; draws 544; Opening ECO:B08s; Pirc: Classical, 5.Be2 O-O 6.O-O c6 7.a4 Nbd7; 1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.Nf3 Bg7 5.Be2 O-O 6.O-O c6 7.a4 Nbd7 *;
r2qkbnr/1pp3pp/p1p2p2/4p3/3PP1b1/2P2N2/PP3PPP/RNBQ1RK1 b kq - acd 45; ce 16; white_wins 623; black_wins 484; draws 307; Opening ECO:C69c; Spanish: Exchange, Gligoric, 6.d4 Bg4 7.c3; 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Bxc6 dxc6 5.O-O f6 6.d4 Bg4 7.c3 *;
r2q1rk1/pp1n1ppp/2p1pn2/7b/Pb1PP3/2NB1N2/1P2QPPP/R1B2RK1 w - - acd 45; ce 31; white_wins 506; black_wins 431; draws 470; Opening ECO:D19n; Slav: Dutch, 8...O-O 9.Qe2 Nbd7 10.e4 Bg6 11.Bd3 Bh5; 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O 9.Qe2 Nbd7 10.e4 Bg6 11.Bd3 Bh5 *;
rnbqkbnr/pppppp1p/6p1/8/5P2/8/PPPPP1PP/RNBQKBNR w KQkq - acd 45; ce -17; white_wins 436; black_wins 481; draws 327; Opening ECO:A02; Bird: 1..g6; 1.f4 g6 *;
rnbqk2r/pppp1ppp/5n2/4p3/1b2P3/2N2N2/PPPP1PPP/R1BQKB1R w KQkq - acd 45; ce 23; white_wins 369; black_wins 275; draws 347; Opening ECO:C42c; Russian-Three Knights Game; 1.e4 e5 2.Nf3 Nf6 3.Nc3 Bb4 *;
r2qrbk1/1bp2pp1/p1np1n1p/1p2p3/P2PP3/1BP2N1P/1P1N1PP1/R1BQR1K1 w - - acd 45; ce 18; white_wins 337; black_wins 253; draws 346; Opening ECO:C92r; Spanish: Closed, Zaitsev, 12.a4 h6; 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 O-O 8.c3 d6 9.h3 Bb7 10.d4 Re8 11.Nbd2 Bf8 12.a4 h6 *;
rnbqkb1r/ppp2ppp/4pn2/8/3P4/2N2N2/PPP3PP/R1BQKB1R w KQkq - acd 45; ce -22; white_wins 168; black_wins 194; draws 117; Opening Blackmar-Diemer Gambit: Euwe Defense. 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 exf3 5.Nf3 e6; CaxtonID: 193; ECO: D00;
rnbqkb1r/pppp2pp/4pn2/5p2/2PP4/2N3P1/PP2PP1P/R1BQKBNR b KQkq - acd 45; ce -40; white_wins 138; black_wins 127; draws 118; Opening ECO:A90; Dutch: 2.c4 Nf6 3.g3 e6 4.Nc3; 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Nc3 *;
rnbq1rk1/pp2ppbp/2p2np1/3p4/2PP4/1QN1PN2/PP3PPP/R1B1KB1R w KQ - acd 45; ce 22; white_wins 50; black_wins 38; draws 47; Opening ECO:D95c; Grünfeld: 5.e3 O-O 6.Qb3 c6; 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.e3 O-O 6.Qb3 c6 *;
rnbqkbnr/pp2pppp/3p4/8/3NP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 44; ce -26; white_wins 151906; black_wins 129222; draws 85885; Opening Sicilian Defense: Modern Variations. 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4; CaxtonID: 2140; ECO: B54;
rn1qkbnr/pp2pppp/2p5/3pPb2/3P4/8/PPP2PPP/RNBQKBNR w KQkq - acd 44; ce 22; white_wins 17856; black_wins 13365; draws 11212; Opening ECO:B12; Variation Caro-Kann: advance variation; Comment (shortened) *pwo; 1. e4 c6 2. d4 d5 3. e5 Bf5 *;
rnbqkb1r/pp1p1ppp/4pn2/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 44; ce 38; white_wins 16104; black_wins 11445; draws 11628; Opening Sicilian Defense: French Variation. Normal 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6; CaxtonID: 2096; ECO: B40;
rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - acd 44; ce 55; white_wins 11752; black_wins 8688; draws 12093; Opening ECO:D10r; Slav: 3.Nc3 Nf6; 1.d4 d5 2.c4 c6 3.Nc3 Nf6 *;
rnbqkb1r/pp2pppp/2p2n2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R b KQkq - acd 44; ce -24; white_wins 10707; black_wins 7819; draws 10910; Opening Slav Defense: Quiet Variation. 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3; CaxtonID: 2332; ECO: D11;
rnbqkb1r/pp2pppp/2p2n2/8/P1pP4/2N2N2/1P2PPPP/R1BQKB1R b KQkq - acd 44; ce -33; white_wins 10634; black_wins 7398; draws 9313; Opening Slav Defense: Alapin Variation. 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4; CaxtonID: 2305; ECO: D16;
r1bqkb1r/1p3ppp/p1np1n2/1N2p1B1/4P3/2N5/PPP2PPP/R2QKB1R w KQkq - acd 44; ce 38; white_wins 9464; black_wins 6613; draws 7215; Opening ECO:B33i; Sicilian: Pelikan, 7.Bg5 a6; 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 *;
rnbqkb1r/pp1p1ppp/4pn2/2p5/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - acd 44; ce 55; white_wins 8790; black_wins 6129; draws 6567; Opening ECO:E10g; Neo-Indian: Blumenfeld/Benoni; 1.d4 Nf6 2.c4 e6 3.Nf3 c5 *;
rnb1kbnr/1pqp1ppp/p3p3/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - acd 44; ce 10; white_wins 7315; black_wins 6219; draws 5802; Opening ECO:B43g; Sicilian: Kan, 5.Nc3 Qc7; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 Qc7 *;
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PPQ2PPP/R1B1K2R b KQkq - acd 44; ce -23; white_wins 5888; black_wins 5053; draws 5500; Opening ECO:D46f; Semi-Slav: Chigorin, 7.Qc2; 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.e3 Nbd7 6.Bd3 Bd6 7.Qc2 *;
rnbq1rk1/pp3ppp/4pn2/2p5/1bBP4/2N1PN2/PP3PPP/R1BQ1RK1 b - - acd 44; ce -17; white_wins 3931; black_wins 3347; draws 4074; Opening Nimzo-Indian Defense: Normal Variation. Gligoric System Exchange at c4 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4; CaxtonID: 1380; ECO: E54;
r1b1kb1r/1pqp1ppp/p1n1pn2/8/3NP3/2NBB3/PPP2PPP/R2Q1RK1 b kq - acd 44; ce -10; white_wins 4048; black_wins 3618; draws 3122; Opening ECO:B48n; Sicilian: Taimanov, 6.Be3 a6 7.Bd3 Nf6 8.O-O; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Bd3 Nf6 8.O-O *;
r1bqkbnr/pppp1p1p/2n3p1/4p3/2P5/2N3P1/PP1PPPBP/R1BQK1NR b KQkq - acd 44; ce -10; white_wins 4036; black_wins 3170; draws 3351; Opening ECO:A25; English: Closed; 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 *;
r1bqkbnr/pp1ppppp/2n5/2p5/4P3/2N5/PPPPNPPP/R1BQKB1R b KQkq - acd 44; ce -35; white_wins 4181; black_wins 3294; draws 2755; Opening Sicilian Defense: Closed Variation. Chameleon Variation 1.e4 c5 2.Nc3 Nc6 3.Nge2; CaxtonID: 2056; ECO: B23;
r1bqk2r/pp2bppp/2nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - acd 44; ce 50; white_wins 4247; black_wins 2949; draws 2375; Opening Sicilian Defense: Richter-Rauzer Variation. Classical Variation 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7; CaxtonID: 2232; ECO: B63;
r1bqkb1r/1ppp1ppp/p1n5/4p3/B3n3/5N2/PPPP1PPP/RNBQ1RK1 w kq - acd 44; ce 16; white_wins 3572; black_wins 2510; draws 2949; Opening Spanish Game: Open Variations. Open Variation 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Nxe4; CaxtonID: 2504; ECO: C80;
rnbqkbnr/pppppp1p/6p1/8/2P5/5N2/PP1PPPPP/RNBQKB1R b KQkq - acd 44; ce -31; white_wins 2299; black_wins 1889; draws 2203; Opening ECO:A10; English: 1...g6; 1.c4 g6 2.Nf3 *;
rnbqk2r/ppppppbp/5np1/8/2P5/2N3P1/PP1PPPBP/R1BQK1NR b KQkq - acd 44; ce -14; white_wins 2308; black_wins 1686; draws 2231; Opening ECO:A16; English: Anglo-Indian, 2.Nc3 g6 3.g3; 1.c4 Nf6 2.Nc3 g6 3.g3 Bg7 4.Bg2 *;
rnbqkb1r/3ppp1p/P4np1/2pP4/8/8/PP2PPPP/RNBQKBNR w KQkq - acd 44; ce 59; white_wins 2163; black_wins 1485; draws 1730; Opening ECO:A58b; Benko Gambit: 5.bxa6 g6; 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 g6 *;
r1b1kb1r/pp1p1ppp/1qn1pn2/8/4P3/1NN5/PPP2PPP/R1BQKB1R w KQkq - acd 44; ce 50; white_wins 1954; black_wins 1584; draws 1356; Opening ECO:B33b; Sicilian: Open, 2...Nc6, 5...Qb6 6.Nb3 e6; 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6 6.Nb3 e6 *;
rnbqkb1r/pp2pp1p/3p1np1/8/3NP3/2N5/PPP1BPPP/R1BQK2R b KQkq - acd 44; ce -23; white_wins 1714; black_wins 1515; draws 1665; Opening Sicilian Defense: Dragon Variation. Classical Variation General 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2; CaxtonID: 2071; ECO: B72;
rnbq1rk1/pp3pbp/3p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQK2R w KQ - acd 44; ce 22; white_wins 1869; black_wins 1475; draws 1358; Opening Benoni Defense: Fianchetto Variation. 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O; CaxtonID: 92; ECO: A62;
rnbqkbnr/pp3ppp/3pp3/8/3NP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 44; ce 52; white_wins 1846; black_wins 1439; draws 1031; Opening ECO:B40l; Sicilian: Open, 2...e6, 4.Nxd4 d6; 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 d6 *;
rnbqkb1r/pp1p1ppp/5n2/2pP4/8/6P1/PP2PP1P/RNBQKBNR b KQkq - acd 44; ce -38; white_wins 1746; black_wins 1417; draws 1070; Opening ECO:A60; Variation Benoni: fianchetto variation; Comment *pwo 1/02 nat, mcmo root to A64; 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 *;
r1bq1rk1/pp2npbp/2npp1p1/2p5/4PP2/2NP1NP1/PPP3BP/R1BQ1RK1 w - - acd 44; ce -14; white_wins 1129; black_wins 1580; draws 1417; Opening ECO:B25p; Sicilian: Closed, 6.f4 e6; 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e6 7.Nf3 Nge7 8.O-O O-O *;
rnbqk2r/pppp1ppp/4pn2/8/2PP4/P1P5/4PPPP/R1BQKBNR b KQkq - acd 44; ce 10; white_wins 1455; black_wins 1551; draws 1004; Opening Nimzo-Indian Defense: Saemisch Variation. Accelerated 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.a3 Bxc3+ 5.bxc3; CaxtonID: 1400; ECO: E24;
rnbqkbnr/ppppp1pp/8/5p2/3P4/2N5/PPP1PPPP/R1BQKBNR b KQkq - acd 44; ce -28; white_wins 1676; black_wins 1182; draws 1116; Opening Dutch Defense: Raphael Variation. 1.d4 f5 2.Nc3; CaxtonID: 394; ECO: A80;
r1bqk1nr/pppp1ppp/2n5/4p3/1bB1P3/2P2N2/P2P1PPP/RNBQK2R b KQkq - acd 44; ce 17; white_wins 1369; black_wins 1549; draws 917; Opening ECO:C51; Evans Gambit Accepted, 5.c3; 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 *;
r1bqkb1r/ppp2ppp/2n2n2/3pp1N1/2B1P3/8/PPPP1PPP/RNBQK2R w KQkq - acd 44; ce 17; white_wins 1550; black_wins 1245; draws 835; Opening Italian Game: Two Knights Defense. Knight Attack Normal Variation 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5; CaxtonID: 932; ECO: C57;
rnbqkbnr/pp1ppppp/8/2p5/8/2N2N2/PPPPPPPP/R1BQKB1R b KQkq - acd 44; ce 15; white_wins 1208; black_wins 1377; draws 1021; Opening ECO:A00; Variation Proto-Sicilian; Comment *pwo add; 1. Nc3 c5 2. Nf3 *;
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R b KQ - acd 44; ce -35; white_wins 1309; black_wins 893; draws 1240; Opening Queen's Gambit Declined: Orthodox Defense. Rubinstein Variation 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Bg5 Be7 5.e3 O-O 6.Nf3 Nbd7 7.Qc2; CaxtonID: 1738; ECO: D61;
rnbqk1nr/ppp1bppp/8/3p4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - acd 44; ce 37; white_wins 1149; black_wins 756; draws 1097; Opening ECO:D31e; QGD: Alatortsev, Exchange; 1.d4 d5 2.c4 e6 3.Nc3 Be7 4.cxd5 exd5 *;
rnbqkbnr/ppp1pp1p/3p2p1/8/2PP4/5N2/PP2PPPP/RNBQKB1R b KQkq - acd 44; ce -26; white_wins 1163; black_wins 759; draws 1050; Opening ECO:A41r; Neo-Old Indian: Modern, 3.Nf3; 1.d4 d6 2.c4 g6 3.Nf3 *;
rnbqk2r/ppp1bppp/3p1n2/8/3NP3/2N5/PPP2PPP/R1BQKB1R w KQkq - acd 44; ce 44; white_wins 1050; black_wins 747; draws 1001; Opening ECO:C41k; Philidor: 3...exd4 4.Nxd4 Nf6 5.Nc3 Be7; 1.e4 e5 2.Nf3 d6 3.d4 exd4 4.Nxd4 Nf6 5.Nc3 Be7 *;
r1bqkb1r/ppp2ppp/5n2/n2Pp1N1/2B5/8/PPPP1PPP/RNBQK2R w KQkq - acd 44; ce -10; white_wins 1147; black_wins 898; draws 630; Opening Italian Game: Two Knights Defense. Polerio Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Na5; CaxtonID: 937; ECO: C57;
rnbqkbnr/pppp1ppp/8/8/2B1Pp2/8/PPPP2PP/RNBQK1NR b KQkq - acd 44; ce 40; white_wins 934; black_wins 1119; draws 533; Opening King's Gambit: Accepted. Bishop's Gambit 1.e4 e5 2.f4 exf4 3.Bc4; CaxtonID: 1002; ECO: C33;
r1bq1rk1/p2n1ppp/1p2pn2/2p5/1bBP4/2N1PN2/PP2QPPP/R1B2RK1 w - - acd 44; ce 43; white_wins 889; black_wins 764; draws 927; Opening ECO:E55; Nimzo-Indian: Main Line, Bronstein, 9.Qe2 b6; 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 O-O 5.Nf3 d5 6.Bd3 c5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 b6 *;
r1bq1rk1/pp2bppp/2n1pn2/2pp4/2P5/1P3NP1/PB1PPPBP/RN1Q1RK1 w - - acd 44; ce 17; white_wins 795; black_wins 730; draws 716; Opening ECO:A14; English: Neo-Catalan Declined, 5...O-O 6.b3 c5 7.Bb2 Nc6; 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7 5.O-O O-O 6.b3 c5 7.Bb2 Nc6 *;
rnbq1rk1/1p3pbp/p2p1np1/2pP4/8/2N2NP1/PP2PPBP/R1BQ1RK1 w - - acd 44; ce 53; white_wins 769; black_wins 602; draws 582; Opening ECO:A62; Benoni: Fianchetto, 9.O-O a6; 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 O-O 9.O-O a6 *;
rnbqkb1r/1p3p1p/p2p1np1/2pP4/4P3/2N2N2/PP3PPP/R1BQKB1R w KQkq - acd 44; ce 45; white_wins 622; black_wins 575; draws 426; Opening ECO:A70b; Benoni: Classical, 7...a6; 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 a6 *;
r2qk2r/pppb1ppp/3b4/3p4/3Pn3/3B4/PPP2PPP/RNBQ1RK1 w kq - acd 44; ce 30; white_wins 496; black_wins 358; draws 662; Opening ECO:C43t; Russian Game: Modern Attack, 3...Nxe4, Main Line, 7...Bd6; 1.e4 e5 2.Nf3 Nf6 3.d4 Nxe4 4.Bd3 d5 5.Nxe5 Nd7 6.Nxd7 Bxd7 7.O-O Bd6 *;
rnbqk2r/pp3p2/4p1pp/2ppP3/3P2Q1/2PB4/P1PK1PPP/R5NR w kq - acd 44; ce 16; white_wins 504; black_wins 387; draws 379; Opening ECO:C12p; French: MacCutcheon, Main Line; 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.e5 h6 6.Bd2 Bxc3 7.bxc3 Ne4 8.Qg4 g6 9.Bd3 Nxd2 10.Kxd2 c5 *;
r1bq1rk1/pppnppbp/3p1np1/8/2PPP3/2N1BP2/PP4PP/R2QKBNR w KQ - acd 44; ce 55; white_wins 507; black_wins 368; draws 368; Opening ECO:E81q; King's Indian: Sämisch, 5...O-O 6.Be3 Nbd7; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Be3 Nbd7 *;
rn1qk2r/pb1pbppp/1p2pn2/8/2Pp4/2NBPN2/PP3PPP/R1BQ1RK1 w kq - acd 44; ce 29; white_wins 398; black_wins 317; draws 413; Opening ECO:E14x; Queen's Indian: 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.Nc3 cxd4; 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.Nc3 cxd4 *;
rnbqkb1r/ppp1pppp/5n2/3p4/3PP3/2N5/PPP2PPP/R1BQKBNR b KQkq - acd 44; ce 56; white_wins 333; black_wins 413; draws 284; Opening ECO:D00; Opening: Blackmar-Diemer gambit; 1. d4 d5 2. Nc3 Nf6 3. e4 *;
rnbq1rk1/pp2ppbp/3p1np1/2p5/2PPP3/2N2P2/PP2N1PP/R1BQKB1R w KQ - acd 44; ce 21; white_wins 367; black_wins 260; draws 251; Opening ECO:E81d; King's Indian: Sämisch, 5...O-O 6.Nge2 c5; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 O-O 6.Nge2 c5 *;
rnb1k2r/1p3ppp/p3pn2/2b5/2B5/4PN2/PP1N1PPP/R1BR2K1 b kq - acd 44; ce -10; white_wins 214; black_wins 148; draws 336; Opening ECO:D27n; QGA: Classical, Spassky, 9.Nbd2; 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.O-O a6 7.dxc5 Qxd1 8.Rxd1 Bxc5 9.Nbd2 *;
rnbq1rk1/ppp1ppbp/3p1np1/8/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - acd 44; ce 34; white_wins 218; black_wins 193; draws 151; Opening ECO:E61m; King's Indian: 4.Nf3 O-O 5.e3 d6; 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.Nf3 O-O 5.e3 d6 *;
rnbq1rk1/ppp1ppbp/3p1np1/8/2PPP3/2N1B3/PP2BPPP/R2QK1NR b KQ - acd 44; ce -42; white_wins 239; black_wins 172; draws 130; Opening King's Indian Defense: Semi-Averbakh System. 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 O-O 6.Be3; CaxtonID: 1234; ECO: E73;
r1b1kbnr/pp3ppp/2n1p3/3q4/3P4/2N2N2/PP3PPP/R1BQKB1R b KQkq - acd 44; ce -29; white_wins 104; black_wins 74; draws 63; Opening ECO:B22; Variation Sicilian: Alapin (...d5 exd5...Qxd5); Comment *pwo; 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 e6 7. Nc3 *;
r1b1rnk1/pp2qppp/2p5/3p4/3Pn3/2NBPN2/PPQ2PPP/4RRK1 w - - acd 44; ce 33; white_wins 69; black_wins 55; draws 111; Opening ECO:D36; Variation QGD: exchange, modern line; Comment *pwo 6/01 add, nat; 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 Nbd7 6. cxd5 exd5 7. Bd3 O-O 8. Nf3 Re8 9. Qc2 Nf8 10. O-O c6 11. Rae1 Ne4 12. Bxe7 Qxe7 *;
r1bqk2r/pppp1ppp/2n5/3P4/2B1n3/2b2N2/PP3PPP/R1BQ1RK1 b kq - acd 44; ce 40; white_wins 54; black_wins 79; draws 58; Opening Italian Game: Classical Variation. Greco Gambit Moeller-Therkatz Attack 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 exd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.O-O Bxc3 9.d5; CaxtonID: 876; ECO: C54;
r2qkb1r/pb1n1p2/2p1pn1p/1p2N1p1/2pPP3/2N3B1/PP2BPPP/R2QK2R w KQkq - acd 44; ce 10; white_wins 45; black_wins 39; draws 32; Opening ECO:D43; Variation QGD: semi-Slav (6.Bh4); Comment *pwo 3/02 nat, footnote 44 (10.Ne5), oob w/ 10...Nbd7; 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Bb7 10. Ne5 Nbd7 *;
r1bqk1nr/pppp1ppp/2n5/2b1p3/2BPP3/5N2/PPP2PPP/RNBQK2R b KQkq - acd 44; ce 16; white_wins 29; black_wins 32; draws 12; Opening Italian Game: Rosentreter Gambit. 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.d4; CaxtonID: 913; ECO: C50;
rnbqkbnr/pppppppp/8/8/2P5/8/PP1PPPPP/RNBQKBNR b KQkq - acd 43; ce -17; white_wins 151467; black_wins 119944; draws 125655; Opening English Opening: General. 1.c4; CaxtonID: 464; ECO: A10;
rnbqkbnr/pp1ppppp/2p5/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 43; ce 24; white_wins 69573; black_wins 52774; draws 57654; Opening Caro-Kann Defense: General. 1.e4 c6; CaxtonID: 273; ECO: B10;
rnbqkbnr/pp1p1ppp/4p3/8/3pP3/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 43; ce 16; white_wins 66369; black_wins 51383; draws 51322; Opening Sicilian Defense: French Variation. Open 1.e4 c5 2.Nf3 e6 3.d4 cxd4; CaxtonID: 2097; ECO: B40;
rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - acd 43; ce 22; white_wins 38594; black_wins 28484; draws 37389; Opening Queen's Gambit Declined: General. 1.d4 d5 2.c4 e6; CaxtonID: 1688; ECO: D30;
r1bqkb1r/1ppp1ppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - acd 43; ce -25; white_wins 41176; black_wins 28844; draws 32709; Opening Spanish Game: Morphy Defense. 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O; CaxtonID: 2441; ECO: C78;
r1bqk2r/1pppbppp/p1n2n2/4p3/B3P3/5N2/PPPP1PPP/RNBQ1RK1 w kq - acd 43; ce 14; white_wins 30426; black_wins 21560; draws 24444; Opening Spanish Game: Closed Variations. 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7; CaxtonID: 2387; ECO: C84;
rnbqkbnr/pppp1ppp/8/4p3/2P5/2N5/PP1PPPPP/R1BQKBNR b KQkq - acd 43; ce -10; white_wins 28456; black_wins 25463; draws 21734; Opening English Opening: King's English Variation. Reversed Sicilian 1.c4 e5 2.Nc3; CaxtonID: 493; ECO: A21;
r1bqkb1r/pp2pppp/2np1n2/6B1/3NP3/2N5/PPP2PPP/R2QKB1R b KQkq - acd 43; ce -51; white_wins 30307; black_wins 23621; draws 15753; Opening Sicilian Defense: Richter-Rauzer Variation. General 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5; CaxtonID: 2238; ECO: B60;
rnbqkbnr/pp1ppppp/8/2p5/2P5/8/PP1PPPPP/RNBQKBNR w KQkq - acd 43; ce 15; white_wins 22854; black_wins 17270; draws 20513; Opening English Opening: Symmetrical Variation. General 1.c4 c5; CaxtonID: 519; ECO: A30;
rnbqkbnr/pp2pppp/2p5/8/3PN3/8/PPP2PPP/R1BQKBNR b KQkq - acd 43; ce -18; white_wins 21387; black_wins 15649; draws 21049; Opening Caro-Kann Defense: Main Line. 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4; CaxtonID: 287; ECO: B15;
rnbqkbnr/pppppp1p/6p1/8/4P3/8/PPPP1PPP/RNBQKBNR w KQkq - acd 43; ce 58; white_wins 21792; black_wins 16283; draws 17270; Opening Modern Defense: King Pawn Fianchetto. 1.e4 g6; CaxtonID: 1298; ECO: B06;
r1bqkb1r/1p3ppp/p1nppn2/6B1/3NP3/2N5/PPPQ1PPP/R3KB1R w KQkq - acd 43; ce 32; white_wins 21244; black_wins 17078; draws 10655; Opening Sicilian Defense: Richter-Rauzer Variation. Neo-Modern Variation Early deviations 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6; CaxtonID: 2243; ECO: B62;
rnbqkb1r/pp1ppppp/8/2pnP3/8/2P5/PP1P1PPP/RNBQKBNR w KQkq - acd 43; ce 26; white_wins 12084; black_wins 10637; draws 9795; Opening ECO:B22o; Sicilian: Alapin, 2...Nf6 3.e5 Nd5; 1.e4 c5 2.c3 Nf6 3.e5 Nd5 *;
rnbqkb1r/ppp1pppp/5n2/3p4/8/5NP1/PPPPPPBP/RNBQK2R b KQkq - acd 43; ce -29; white_wins 10592; black_wins 8516; draws 10032; Opening ECO:A07; Variation Reti: King's Indian attack; Comment (nat; A07 catch all) *pwo; 1. Nf3 d5 2. g3 Nf6 3. Bg2 *;
rnbqkbnr/pppppppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQkq - acd 43; ce 17; white_wins 8522; black_wins 9582; draws 4629; Opening Bird Opening: General. 1.f4; CaxtonID: 132; ECO: A02;