Is the Latvian losing?

[Werewolf]

1.e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. Nc4 fxe4 5. Nc3 Qf7
6. Ne3 d5 7. Nexd5 c6 8. Ne3 Nf6 9. f3, but think the hey line is 6......c6 and not d5

I think 6...c6 might lose to 7.d3

in the line above I go 9...ef

[Dann Corbit]

As a side note, asking if Latvian Gambit is losing is like asking if Budapest Gambit is losing or Damiano Defence is losing. They are questions without answers IMHO because we do not have the tools for answer them.

We could answer that 1.g4 loses by force though, so I wonder what makes such gambits harder.

A demonstration with a few games is not a proof.
I saw a duck.
It was white.
I saw another duck.
It was also white.
All ducks are white.

[agnolauga]

10. Qxf3

[Dann Corbit]

Here is some data for the Latvian Gambit:

Code: Select all

rnb1k1nr/ppp3pp/6q1/3p4/2N1p3/2BP4/PPP2PPP/R2QKB1R w KQkq - acd 36; bm Ne5; ce 311; pm Ne5; pv Ne5 Qf5 dxe4 Qxe4+ Be2 Nf6 O-O O-O Bf3 Qf5 Bxd5+ Nxd5 Qxd5+ Qe6 Qd3 Na6 Qg3 Qh6 Rae1 Bf5 Re2 Qd6 Rd2 Qh6 Re1 Nc5 Rde2 Qd6 b4 Ne6 Rd2 Qe7 Nd7 Rfd8 Nf6+ Kh8 Qf3 gxf6 Qxf5 Rxd2 Bxd2 Ng7 Qb5 Qd6 Qxb7 Re8 Rd1 Qb6 Qd5 Qe6 Qxe6 Rxe6; white_wins 0; black_wins 0; draws 0; 
rnbqkr2/pppp1pQp/8/2b1P3/3P4/5N2/PPP3PP/RNB1KB1n b Qq - acd 36; bm Bxd4; ce -17; pm Bxd4; pv Bxd4 Bg5 f6 Bh6 Bc5 Nc3 Qe7 Nd5 Qxg7 Bxg7 Kd8 b4 Rf7 Bxf6+ Rxf6 exf6 Bf8 Bd3 c6 Ne3 d5 Ke2 Nd7 f7 Ke7 Bxh7 Kxf7 Rxh1 Bxb4 Bd3 Nf6 h4 Nh5 Ng5+ Ke7 Kf3 Bd7 Nh7 Ng7 g4 Rh8 h5 Ne6 Nf5+ Kd8 Nf6 Ng5+ Kf4 Bd2+ Kg3 Be6 Nd6 Bc3; white_wins 0; black_wins 0; draws 0; Opening Latvian: Behting variation *; 
rnbqkb1r/ppp2ppp/4n3/3pP3/8/3P1Q2/PPP3PP/RNB1KBNR w KQkq - acd 36; bm Nc3; ce -117; pm Nc3; pv Nc3 c6 Qg3 Nd4 Kd1 Nf5 Qf4 c5 Nf3 Nc6 g4 Nfd4 Nxd4 Nxd4 a4 Be7 Bg2 Be6 g5 h6 h4 hxg5 hxg5 Rxh1+ Bxh1 Qd7 Be3 Nf5 Bf2 g6 Bg2 Kf8 a5 Kg8 Qf3 Rd8 Qf4 Kg7 Qa4 Qxa4 Rxa4 d4 Nb5 Bxg5 Bxb7; white_wins 0; black_wins 0; draws 0; Opening Latvian: Nimzovich variation *; 
rnbqk2r/pppp1ppp/8/2b1P3/4n3/5N2/PPPP2PP/RNBQKB1R b KQkq - acd 36; bm Nf2; ce 299; pm Nf2; pv Nf2 Qe2 Nxh1 d4 Bb4+ Bd2 Bxd2+ Nbxd2 O-O O-O-O Nc6 Qe3 d6 a3 dxe5 dxe5 Re8 Bd3 Qe7 Re1 Bd7 Qg1 h6 Qxh1 Qc5 Nb3 Qf2 Kb1 Be6 Nbd2 Rad8 Ne4 Qb6 h3 Rd5 Nc3 Ra5 Ka1 Bd5 Nxd5 Rxd5 Bc4 Rd7 Re2; white_wins 0; black_wins 0; draws 0; Opening Latvian: corkscrew counter-gambit *; 
rnbqk2r/pppp1ppp/8/2b1P3/3Pn3/8/PPP3PP/RNBQKBNR b KQkq - acd 36; bm Qh4+; ce 30; pm Qh4+; pv Qh4+ g3 Nxg3 hxg3 Qxh1 Kf2 Qd5 Nf3 Be7 c4 Qe6 Nc3 c6 Bf4 h6 d5 Qg4 d6 Bd8 a3 Kf8 Be2 Qh3 Qc2 Bb6+ Be3 Bxe3+ Kxe3 c5 Nd5 Nc6 Nf4 Qg4 Kf2 g5 Ne1 Nd4 Bxg4 Nxc2 Nxc2 gxf4 gxf4 b6 Ne3 h5 Bf5 h4 Bh3; white_wins 0; black_wins 0; draws 0; Opening Latvian: Polerio variation *; 
rnb1kbnN/ppp3pp/8/3p4/2B5/8/PPPP1PqP/RNBQKR2 b Qq - acd 36; bm dxc4; ce 288; pm dxc4; pv dxc4 d4 Bh3 Qe2+ Be7 Bf4 Qxf1+ Qxf1 Bxf1 Kxf1 Na6 Nd2 O-O-O Be5 Bf6 Bxf6 gxf6 Re1 Nh6 Re4 Rxh8 Nxc4 Nb4 Ne3 f5 Rh4 Ng4 Nxf5 Rf8 Rxg4 Rxf5 Rg8+ Kd7 Rg7+ Kd6 c4 Rh5 a3 Nc2 c5+ Kc6 d5+ Rxd5 Rxh7 Rxc5 h4 Nd4 h5 Ne6 Rh8 Nf4; white_wins 0; black_wins 0; draws 0; Opening C40:Latvian, Behting variation; 
rnbqkbnr/pppp2pp/8/4pp2/4P1P1/5N2/PPPP1P1P/RNBQKB1R b KQkq - acd 36; bm fxe4; ce 199; pm fxe4; pv fxe4 Nxe5 Qe7 Nc4 d5 Ne3 Nc6 Nxd5 Qe5 Ne3 Be6 Bg2 Bc5 Nc3 Nf6 d3 exd3 cxd3 Bxg4 Qd2 O-O-O O-O Rhe8 Nc4 Qh5 Qg5 Rxd3 Qxh5 Bxh5 Bg5 Nd4 Rfe1 Nf3+ Bxf3 Rxf3 Be3 Bxe3 Nxe3 Rf4 Ned5 Rd4 Rxe8+ Bxe8 Re1 Nxd5 Rxe8+ Kd7 Re2 Kc6; white_wins 0; black_wins 0; draws 0; Opening Latvian Gambit: Lobster Gambit. 1.e4 e5 2.Nf3 f5 3.g4; CaxtonID: 1258; ECO: C40; 
rnbqkb1r/pppp1ppp/8/4p3/4nP2/2N5/PPPP2PP/R1BQKBNR b KQkq - acd 36; bm Qh4+; ce 259; pm Qh4+; pv Qh4+ g3 Nxg3 Nf3 Qh6 Rg1 Nxf1 Rxf1 exf4 Qe2+ Qe6 d3 d6 Nd5 Qxe2+ Kxe2 Na6 Nxf4 Bd7 b3 f6 Bb2 O-O-O Rae1 c6 Kd2 Nc7 Nd4 d5 Nfe6 Bxe6 Nxe6 Nxe6 Rxe6 Bb4+ c3 Bc5 Ree1 Kd7 h4 Rde8 h5 Rxe1 Rxe1 g6 h6 g5 d4 Bd6; white_wins 0; black_wins 0; draws 0; Opening Latvian: Fraser defense *; 
rnb1kb1N/ppp1q1pp/5n2/3p4/2B1p3/8/PPPP1PPP/RNBQK2R w KQq - acd 36; bm Bb5+; c2 "lichess.org"; c3 "Bb3"; ce 252; pm Be2 {4} Bxd5 {2}; pv Bb5+ Bd7 Bxd7+ Nbxd7 O-O Qe6 d3 O-O-O Nc3 Be7 Nb5 Qb6 a4 Rxh8 dxe4 a6 Be3 Bc5 Bxc5 Qxc5 e5 Nxe5 Qd4 Ned7 Qxc5 Nxc5 Nd4 Re8 Rfe1 Kd7 Rxe8 Nxe8 f3 Nd6 Kf2 Ne6 Nxe6 Kxe6 Re1+ Kf6 Ke2 c6 Kd3 h6 c3 g5 Kd4; white_wins 0; black_wins 0; draws 0; Opening C40 Latvian Gambit: Corkscrew Gambit; 
rnbqkbnr/pppp2pp/8/4pp2/1P2P3/5N2/P1PP1PPP/RNBQKB1R b KQkq - acd 36; bm fxe4; ce 107; pm fxe4 {5} Bxb4 {2} Nf6 {1} d6 {1}; pv fxe4 Nxe5 Nf6 d4 Bxb4+ c3 Be7 Be2 O-O O-O Kh8 Nd2 d6 Ng4 Bxg4 Bxg4 d5 Be2 Bd6 Rb1 Nbd7 c4 c5 Nb3 Qc7 Nxc5 Nxc5 dxc5 Bxc5 cxd5 Rad8 Qb3 Nxd5 Qxb7 Qd6 Bb2 Rd7 Qa6 Nf4 Bb5 Qxa6 Bxa6 Nd3 Bb5 Rdd8; white_wins 0; black_wins 0; draws 0; Opening Latvian Gambit: Senechaud Gambit. 1.e4 e5 2.Nf3 f5 3.b4; CaxtonID: 1266; ECO: C40; 
rnb1kbnr/ppp4p/3p1qp1/8/2NPp3/8/PPP1QPPP/RNB1KB1R b KQkq - acd 36; bm d5; ce 50; pm d5; pv d5 Ne3 Ne7 c4 Nbc6 Nc3 Nxd4 Qd1 Bg7 cxd5 O-O Nxe4 Qe5 Bd3 Nxd5 Nxd5 Qxd5 O-O Bf5 Nc3 Qf7 Bxf5 Qxf5 Be3 Rad8 Bxd4 Bxd4 Kh1 Qe6 Qc2 Qc4 f3 c6 Rfe1 Rfe8 Rad1 Rxe1+ Rxe1 b5 Qb1 Bxc3 bxc3 a5 Qb2 a4 Kg1 Kf7 Qf2 Kf8 Qe2 Qxe2 Rxe2 Kf7 Kf2; white_wins 0; black_wins 0; draws 0; Opening Latvian Gambit: Accepted. Bronstein Gambit 1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Qh5+ g6 7.Qe2; CaxtonID: 1246; ECO: C40; 
rnbqkbnr/pppp2pp/8/4pp2/2P1P3/5N2/PP1P1PPP/RNBQKB1R b KQkq - acd 38; bm Nc6; ce 0; pm Nc6; pv Nc6 d4 exd4 Nxd4 Bb4+ Bd2 Bxd2+ Qxd2 fxe4 Nf5 g6 Ng3 Nf6 Nc3 d6 O-O-O O-O Ncxe4 Nxe4 Nxe4 Bf5 Bd3 Qe7 Rhe1 Ne5 Bc2 Nxc4 Qd5+ Be6 Ng5 Bxd5 Rxe7 Bxg2 Rxh7 Rxf2 Bxg6 Ne5 Bb1 Nf7 Ne6 Re8 Rg7+ Kh8 Rh7+ Kg8; white_wins 0; black_wins 0; draws 0; Opening Latvian Gambit: Diepstraten Countergambit. 1.e4 e5 2.Nf3 f5 3.c4; CaxtonID: 1254; ECO: C40; 
rnbqk2r/pppp1ppp/5n2/2b1p3/4PP2/8/PPPP2PP/RNBQKBNR w KQkq - acd 41; bm fxe5; c3 "fxe5"; ce 13; pm fxe5; pv fxe5 Nxe4 Qg4 d5 Qxg7 Qh4+ g3 Bf2+ Kd1 Qg4+ Qxg4 Bxg4+ Be2 Bb6 Bxg4 Nf2+ Ke1 Nxg4 Ne2 Nxe5 Rf1 c5 Nf4 d4 d3 Nbc6 Nd5 O-O-O Nxb6+ axb6 Nd2 Rhe8 Ne4 Nc4 Rxf7 Nd6 Rf4 b5 Kd1 Nxe4 Rxe4 Rxe4 dxe4 d3 cxd3 Rxd3+ Ke2 Rd4 Be3 Rxe4 Rf1 c4 Kd2 Ne5 Rf5 c3+ Kxc3 Rxe3+ Kd4 Re2 Rxe5 Rxb2 a3 Rxh2 Rxb5 Kc7 Rf5 Kc6; white_wins 0; black_wins 0; draws 0; Opening Latvian gambit, 3.Bc4 *; 
rnb1kb1N/ppp1q1pp/8/3p1p2/2B1n3/8/PPPP1PPP/RNBQK2R w KQq - acd 42; bm Qh5+; c3 "Qh5+"; ce 526; pm Qh5+; pv Qh5+; white_wins 0; black_wins 0; draws 0; Opening Latvian Gambit: Corkscrew Gambit. 1.e4 e5 2.Nf3 f5 3.Nxe5 Nf6 4.Bc4 fxe4 5.Nf7 Qe7 6.Nxh8 d5; CaxtonID: 1253; ECO: C40; 
rnbqkb1r/pppp2pp/5n2/4N3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - acd 49; bm Nf7; cce 444; ce 301; pm Nf7 {4} Bf7+ {1}; pv Nf7 Qe7 Nxh8 d5 Bb5+ Bd7 Bxd7+ Nbxd7 O-O Qe6 Nc3 O-O-O d3 Bc5 dxe4 dxe4 Qe2 Bb4 Nb5 a6 c3 Be7 Nd4 Qd5 f3 Rxh8 fxe4 Qxe4 Qxe4 Nxe4 Rf7 Bf6 Bf4 Nec5 Rd1 Rf8 Rxf8+ Nxf8 Nf3 b5 Be5 Nfd7 Bxf6 Nxf6 Kf2 Na4 Rb1 Kd7 Ne5+ Kd6 Nd3 Ne4+ Ke3 Nec5 Nf4 Ne6 Rd1+ Ke7 Nd5+ Kd6 Nb6+ Kc6 Nxa4 bxa4; white_wins 5; black_wins 0; draws 0; Opening C40p Latvian: Blackburne Variation (Corkscrew Countergambit); 
rnbqkb1r/pppp1ppp/5n2/4p3/4PP2/8/PPPP2PP/RNBQKBNR b KQkq - acd 37; bm Nxe4; cce 296; ce 112; pm Nxe4 {4} exf4 {2}; pv Nxe4 Qf3 d5 d3 Nc5 fxe5 Nc6 Qg3 f6 Be2 fxe5 Nh3 Be6 Ng5 Qd7 Be3 Bf5 O-O Bd6 Qf2 d4 Qxf5 Qxf5 Rxf5 dxe3 c3 Be7 b4 g6 Rf1 Bxg5 bxc5 Be7 Na3 Rf8 Nc4 O-O-O Rab1 h5 Rxf8 Bxf8 g4 h4 Nxe3 Bxc5; white_wins 1; black_wins 5; draws 0; Opening Latvian counter-gambit *; 
rnb1k1nr/pppp2pp/6q1/8/1bN1P3/2N5/PPP2PPP/R1BQKB1R b KQkq - acd 36; bm Nf6; cce -338; ce -127; pm Nf6; pv Nf6 Ne3 Bxc3+ bxc3 Qxe4 Bd3 Qc6 O-O O-O Ng4 d5 Nxf6+ Qxf6 Rb1 Qf7 Rb4 Nd7 Rf4 Nf6 Qf3 b6 c4 Ba6 cxd5 Bxd3 Qxd3 Qg6 Qc4 Qf7 Qb3 Rad8 c4 Qh5 Bb2 Qg6 Bxf6 Rxf6 Rxf6 Qxf6 Re1 Qd4 Qe3 Qxe3 Rxe3 Kf7 Re1 Rf8; white_wins 120; black_wins 0; draws 39; 
rnb1k1nr/pp1p2pp/2p5/8/1b2q3/2N1N3/PPP2PPP/R1BQKB1R w KQkq - acd 36; bm Bd3; cce 444; ce 496; pm Bd3; pv Bd3 Qe6 O-O Ne7 Re1 O-O Bc4 d5 Nexd5 Qxe1+ Qxe1 cxd5 Bb3 Nbc6 Bd2 Bxc3 Bxc3 Bf5 h4 Rad8 Qd2 h6 Re1 Kh7 Bb4 Rd7 Bxe7 Nxe7 Qb4 Re8 Qa4 Red8 Qxa7 Bg6 f3 h5 Qb6 Nc6 Ba4 d4 Bb3 d3 cxd3 Rxd3 Qxb7 Nd4 Bd5 Rd2 Be4 Bxe4; white_wins 190; black_wins 0; draws 0; 
rnb1kbnr/pp1p2pp/2p1q3/7Q/2N1N3/8/PPPP1PPP/R1B1KB1R b KQkq - acd 36; bm Kd8; cce -444; ce -187; pm Kd8; pv Kd8 Qe2 Nf6 Ng5 Qe8 d4 h6 Qxe8+ Kxe8 Nf3 d5 Nce5 Bf5 Bd3 Bxd3 Nxd3 Nbd7 O-O Be7 Be3 g5 Rae1 Kd8 Nfe5 Rh7 f3 Kc7 g3 Bd6 b3 Re8 f4 Ne4 c4 Ndf6 fxg5 hxg5 Bxg5 Bxe5 Nxe5 Nxg5 Rxf6 Ne4 Rf4 Nc3 cxd5 Nxd5 Rf5 Nb4 Rf6 Nxa2; white_wins 273; black_wins 0; draws 0; 
rnb1k1nr/pppp2pp/8/8/1b2q3/2N1N3/PPP2PPP/R1BQKB1R b KQkq - acd 36; bm Bxc3+; cce -204; ce -126; pm Bxc3+; pv Bxc3+ bxc3 Nf6 Bd3 Qc6 Bb2 O-O O-O d6 c4 Be6 Nd5 Bxd5 cxd5 Qa4 Rb1 Nbd7 Bxf6 Nxf6 Rxb7 Rf7 Bf5 Kh8 Be6 Re7 Qb1 Rae8 Qb3 Qxb3 cxb3 c5 Rb5 Ne4 Ra5 Nc3 f3 Ne2+ Kf2 Nd4 Re1 g6 Re4 Rb7 h4 Rd8 Kg3 Rdb8 Bh3 Kg7 b4 Nb5 a3 Nc3 Re6 c4 Rxd6 Ne2+ Kf2 Nf4 Rd7+ Rxd7 Bxd7 Kf6; white_wins 133; black_wins 0; draws 145; 
rnb1kbnr/ppppq1pp/8/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - acd 37; bm Qh5+; c2 "lichess.org"; c3 "Qh5+"; cce 241; ce 213; pm Qh5+ {6} d4 {1}; pv Qh5+ g6 Nxg6 Qxe4+ Be2 Nf6 Qh3 hxg6 Qxh8 Qxg2 Rf1 Kf7 d3 Nc6 Qh4 Bg7 Be3 Ng4 Nc3 d5 O-O-O Qxh2 Qxh2 Nxh2 Rh1 d4 Rxh2 dxe3 fxe3 Be6 Rdh1 Rd8 Bf3 g5 a3 g4 Bg2 Ne5 Ne2 c6 Rh5 Nd7 Nf4 Rg8 Nxe6 Kxe6 Rf1 a6 Rfxf5 Rh8 Rxh8 Bxh8 Rg5 Nf6 e4; white_wins 209; black_wins 45; draws 40; Opening Latvian Gambit: Greco Variation. 1.e4 e5 2.Nf3 f5 3.Nxe5 Qe7; CaxtonID: 1257; ECO: C40; 
rnb1kbnr/pp3qpp/2p5/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R b KQkq - acd 37; bm Nf6; cce -197; ce -116; pm Nf6; pv Nf6 Bc4 Be6 Bxe6 Qxe6 d4 exd3 Qxd3 Nbd7 Qf5 Qxf5 Nxf5 Kf7 Be3 g6 Nh6+ Bxh6 Bxh6 Rhe8+ Be3 Nb6 O-O-O Nbd5 Nxd5 Nxd5 Rhe1 a5 g3 Nxe3 Rd7+ Re7 Rxe7+ Kxe7 Rxe3+ Kd6 Rf3 Ke6 Kd2 b5 g4 a4 g5 c5 Ke2 Rd8 Rd3 Rxd3 Kxd3; white_wins 204; black_wins 68; draws 34; 
rnb1kbnr/pp3qpp/2p5/3N4/4p3/2N5/PPPP1PPP/R1BQKB1R w KQkq - acd 37; bm Ne3; cce 296; ce 136; pm Ne3; pv Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Nc5 Nxe6 Qxe6 Re1 Qd7 Bf1 Qxd1 Nxd1 Nce4 Be3 Bb4 Re2 Bc5 f3 Bxe3+ Nxe3 Nd2 Rd1 Nxf1 Kxf1 Kc7 Kf2 b5 a3 a5 c4 Rxd1 Nxd1 Re8 cxb5 Rxe2+ Kxe2 cxb5 Nc3 Kc6 h3 a4 Ke3 Nd7; white_wins 238; black_wins 34; draws 34; 
rnb1kbnr/pppp2pp/5q2/8/2N1p3/3P4/PPP2PPP/RNBQKB1R b KQkq - acd 38; bm d5; cce -173; ce -21; pm d5 {7} Qe6 {1}; pv d5 Qh5+ Qf7 Qxf7+ Kxf7 Ne5+ Ke6 f4 exf3 Nxf3 Nf6 Nc3 c6 d4 Bd6 Bd3 Re8 O-O Kf7 Bg5 Nbd7 Nh4 g6 Rf3 Kg7 Raf1 Rf8 Ne2 a5 h3 c5 b3 b6 Re3 Ne4 Rxf8 Bxf8 Bxe4 dxe4 Rxe4 Bb7 Re3 a4 Nf3 axb3 axb3 Ra2 Nf4 Rxc2 Ne6+ Kg8 Nxf8 Rc1+ Kh2 Nxf8; white_wins 117; black_wins 0; draws 190; Opening Latvian Gambit: Accepted. Foltys Variation 1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4 fxe4 5.d3; CaxtonID: 1247; ECO: C40; 
rnb1kbnr/pp1p2pp/2p2q2/8/2N1N3/8/PPPP1PPP/R1BQKB1R b KQkq - acd 36; bm Qe6; cce -444; ce -186; pm Qe6; pv Qe6 Qh5+ Kd8 Qe2 Nf6 Ng5 Qe8 Qxe8+ Kxe8 d4 h6 Nf3 d5 Nce5 Bf5 Bd3 Bxd3 Nxd3 Nbd7 Be3 Ng4 Bf4 Be7 O-O-O Rf8 Bg3 Kf7 c3 a5 Rhe1 Rfe8 a4 Ngf6 Kc2 Ne4 Bc7 g6 Bf4 g5 Nfe5+ Nxe5 Bxe5 Nf6 h3 h5 Re2 b5 Ra1 Nd7 f4 bxa4 fxg5 Bxg5; white_wins 315; black_wins 0; draws 0; 
rnb1kbnr/pp1p2pp/2p1q3/8/2N1N3/8/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm Qh5+; cce 444; ce 178; pm Qh5+; pv Qh5+ Kd8 Qe2 Nf6 Ng5 Qe8 Qxe8+ Kxe8 d4 h6 Nf3 d5 Nce5 Bf5 Bd3 Bxd3 Nxd3 Nbd7 Be3 Ng4 Bf4 Be7 O-O-O Rf8 Rhf1 Kf7 c3 Rae8 Kc2 g5 Bg3 Ngf6 Nfe5+ Nxe5 Nxe5+ Kg7 Nd3 h5 Rde1 Kg6 f3 Nd7 Re2 h4 Bc7 Bf6 Rfe1 Rxe2+ Rxe2 Rf7 Re8 Re7 Rxe7; white_wins 315; black_wins 0; draws 0; 
rnb1kbnr/pp1p2pp/2p2q2/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm Nxe4; cce 439; ce 175; pm Nxe4; pv Nxe4 Qe6 Qh5+ Kd8 Qe2 Nf6 Ng5 Qe8 Qxe8+ Kxe8 d4 h6 Nf3 d5 Nce5 Bf5 Bd3 Bxd3 Nxd3 Nbd7 Be3 Ng4 Bf4 Be7 O-O-O Rf8 Bg3 Kf7 c3 Rfe8 Rhe1 a5 a4 Ngf6 b3 Ne4 Kb2 Nxg3 hxg3 g6 g4 Bd6 g5 hxg5 Nxg5+ Kg7 Nf3; white_wins 354; black_wins 1; draws 0; 
rnb1kb1r/pp3qpp/2p2n2/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R w KQkq - acd 37; bm d4; cce 242; ce 141; pm d4; pv d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Nc5 Nxe6 Qxe6 Re1 Qd7 Bf1 Qxd1 Nxd1 Nce4 Be3 Bb4 c3 Bc5 f3 Bxe3+ Nxe3 Nc5 Nc4 Kc7 Re7+ Rd7 Re5 Nd5 g3 Rdd8 Re2 Rhe8 Ne5 Nd7 Nxd7 Rxe2 Bxe2 Kxd7 Rd1 Kc7 Kf2 b5 f4 g6 Bf3; white_wins 272; black_wins 68; draws 34; 
rnb1k1nr/pppp2pp/8/8/1bN1q3/2N5/PPP2PPP/R1BQKB1R w KQkq - acd 36; bm Ne3; cce 209; ce 127; pm Ne3; pv Ne3 Bxc3+ bxc3 Nf6 Bd3 Qc6 Bb2 d6 c4 O-O O-O Be6 Nd5 Bxd5 cxd5 Qa4 Rb1 Nbd7 Bxf6 Nxf6 Rxb7 Rf7 Bf5 Kh8 Be6 Re7 Qb1 Rae8 Qb3 Qxb3 cxb3 c5 Rb5 g6 Ra5 Kg7 Ra6 Rd8 f4 Ne8 f5 g5 Ra4 Nf6 h4 gxh4; white_wins 247; black_wins 38; draws 145; 
rnb1k1nr/pppp2pp/8/8/4q3/2b1N3/PPP2PPP/R1BQKB1R w KQkq - acd 36; bm bxc3; cce 209; ce 117; pm bxc3; pv bxc3 Nf6 Bd3 Qc6 O-O O-O Ng4 d5 Nxf6+ Qxf6 Rb1 Qf7 Rb4 Nd7 Rf4 Nf6 Ba3 Re8 Qf3 Bd7 Bc5 Qe6 Bd4 Ne4 Qh5 Rf8 Rh4 Qf5 f3 Qxh5 Rxh5 Nf6 Bxf6 Rxf6 Rxd5 Bc6 Re5 Re8 Rfe1 Rxe5 Rxe5 Kf7 c4 g6 Kf2 Re6 Rxe6 Kxe6 Ke3 Bd7 Kd4 Kf6 Kd5 Be6+ Kc5 Bd7 g4 b6+ Kd5 a5 h4 h6; white_wins 247; black_wins 38; draws 145; 
rnb1kbnr/ppp2qpp/8/3N4/4p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - acd 36; bm c6; cce -295; ce -123; pm c6; pv c6 Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Bc5 Nxe6 Qxe6 Re1 Ne5 Bf4 Bd4 h3 Rhe8 Qd2 Qd7 Rad1 Nxd3 Qxd3 Rxe1+ Rxe1 Bb6 Qxd7+ Rxd7 g3 Bd4 Kg2 Bxc3 bxc3 b5 Re6 Kb7 Be5 Nd5 Re8 a5 Rb8+ Ka7 Rh8 g6 Bd4+ Kb7 f4 b4; white_wins 330; black_wins 38; draws 115; 
rnb1k1nr/pp1p2pp/2p1q3/8/1b2P3/2N1N3/PPP2PPP/R1BQKB1R b KQkq - acd 36; bm Nf6; cce -442; ce -264; pm Nf6; pv Nf6 Bc4 d5 exd5 cxd5 Bb3 O-O O-O Kh8 Ncxd5 Nxd5 Qxd5 Qxd5 Bxd5 Nc6 c3 Be7 Rd1 Bd7 Nc4 Rad8 Be3 b5 Nd2 Ne5 Nf3 Bc6 Bxc6 Nxc6 Ng5 Rxd1+ Rxd1 Bxg5 Bxg5 h6 Be3 a6 Kf1 Ne7 Rd7 Nf5 Bc5 Re8 f3 Kg8; white_wins 484; black_wins 0; draws 1; 
rnb1k1nr/pp1p2pp/2p1q3/8/1b2p3/2NPN3/PPP2PPP/R1BQKB1R w KQkq - acd 36; bm dxe4; cce 264; ce 294; pm dxe4; pv dxe4 Nf6 Bc4 d5 exd5 cxd5 Bb3 O-O O-O Kh8 Ncxd5 Nxd5 Qxd5 Qxd5 Bxd5 Nc6 c3 Be7 Rd1 Rd8 b3 a5 Bb2 Bf6 Rab1 a4 b4 a3 Ba1 Bg5 c4 Bxe3 fxe3 Ne7 Bf3 Re8 b5 Nf5 Rbc1 Ra4 c5 Rb4 e4 Ne3; white_wins 430; black_wins 91; draws 39; 
rnb1kbnr/ppp2qpp/8/3p4/4p3/2N1N3/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm Nexd5; cce 252; ce 126; pm Nexd5; pv Nexd5 c6 Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Bc5 Nxe6 Qxe6 Bf4 Ne5 Re1 Bd4 h3 Rhe8 Qd2 Qd7 Rad1 Nxd3 Qxd3 Rxe1+ Rxe1 Bb6 Qxd7+ Rxd7 g3 Bd4 Kg2 b5 Re6 Kb7 Be5 Bxe5 Rxe5 Kc7 Kf3 a5 Re6 Rf7 Ke3 g5 Ne4 Nxe4 Rxe4 Kd6 g4 c5 f4 gxf4+ Rxf4 Rxf4 Kxf4; white_wins 497; black_wins 91; draws 153; 
r1bqkbnr/pppp2pp/2n5/4pP2/8/3P1N2/PPP2PPP/RNBQKB1R b KQkq - acd 36; bm d5; cce 193; ce 25; pm d5 {14} Nf6 {4} d6 {2}; pv d5 Be2 Bxf5 O-O Qd7 c4 Nf6 d4 exd4 Nxd4 O-O-O Nxc6 Qxc6 cxd5 Qxd5 Nc3 Qe6 Qa4 Bc5 Qb5 Qb6 Bf4 Rhe8 Be3 Qxb5 Bxb5 Re5 Bxc5 Rxc5 Rfe1 Rd2 Bf1 Bd7 Rab1 Rc6 Re2 Rcd6 Rbe1 a5 f3 Rxe2 Rxe2 Kd8 Re3 h6 Bd3 Nd5 Nxd5 Rxd5 Kf2 c6 a3 Kc7; white_wins 116; black_wins 456; draws 194; Opening Latvian Gambit: Clam Gambit. 1.e4 e5 2.Nf3 f5 3.d3 Nc6 4.exf5; CaxtonID: 1252; ECO: C40; 
rnbqkbnr/pppp2pp/8/4pp2/4P3/3P1N2/PPP2PPP/RNBQKB1R b KQkq - acd 36; bm Nc6; cce 41; ce 0; pm d6 {6} Nc6 {5} Nf6 {5} fxe4 {1}; pv Nc6 Be2 Be7 exf5 d6 Be3 Bxf5 O-O Nf6 c4 O-O Nc3 Ng4 Qb3 Na5 Qc2 Nc6; white_wins 245; black_wins 283; draws 255; Opening C40k Latvian Gambit: 3.d3; 
rnb1kb1N/ppp3pp/5n2/3p4/2B1p3/8/PPPP1PqP/RNBQKR2 w Qq - acd 38; bm Bxd5; cce -325; ce 13; pm Bxd5 {15} Be2 {2} Bb5+ {1}; pv Bxd5 Bg4; white_wins 3; black_wins 575; draws 209; Opening ECO:C40; Opening: Latvian; Variation Behting variation; 1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6 *; 
rnb1kbnr/pp1p2pp/2p1q3/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm d3; cce 162; ce 239; pm d3; pv d3 Nf6 dxe4 b5 f4 b4 Bc4 Qe7 Na4 d5 exd5 cxd5 Bb3 d4 Qxd4 Ba6 Qe5 Nc6 Qxe7+ Bxe7 Nf5 Bf8 Bd2 Na5 Be6 Bc4 Bxc4 Nxc4 O-O-O Kf7 b3 g6 Ne3 Nxe3 Bxe3 Be7 Rhe1 Rhd8 Rxd8 Bxd8 Bc5 a5 a3 Nd5 Rd1 Nxf4 axb4 axb4 Rf1 Ke6 Rxf4 Bg5 g3 Bxf4+ gxf4 Kf5 Bxb4 Kxf4 Nb2; white_wins 528; black_wins 220; draws 92; 
rnb1kbnr/pp1p2pp/2p1q3/8/4p3/2NPN3/PPP2PPP/R1BQKB1R b KQkq - acd 36; bm Nf6; cce -352; ce -249; pm Nf6; pv Nf6 dxe4 b5 f4 b4 Bc4 Qe7 Na4 d5 exd5 cxd5 Bb3 d4 Qxd4 Ba6 Qe5 Nc6 Qxe7+ Bxe7 Nf5 Bf8 Be3 O-O-O Rd1 Re8 Kd2 Kc7 Nd4 Na5 Rhe1 Nc4+ Bxc4 Bxc4 f5 Bd6 b3 Bd5 Nb5+ Kc6 Nxd6 Kxd6 Bxa7 Kc6 Kc1 Rxe1 Rxe1 Re8 Rxe8 Nxe8 g3 Be4 Bc5 Nf6 Bxb4 Bxf5 Bc3 Ng4; white_wins 801; black_wins 76; draws 55; 
rnb1kbnr/pppp2pp/4q3/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R b KQkq - acd 36; bm c6; cce -304; ce -201; pm c6; pv c6 d3 Nf6 dxe4 b5 f4 b4 Bc4 Qe7 Na4 d5 exd5 cxd5 Bb3 d4 Qxd4 Ba6 Qe5 Nc6 Qxe7+ Bxe7 Nf5 Bf8 Bd2 O-O-O O-O-O Ng4 Nxg7 Nf2 Ne6 Re8 Nxf8 Rhxf8 Nc5 Nxd1 Nxa6 Nf2 Rf1 Ne4 Bxb4 Nxb4 Nxb4 Nf6 h3 Nh5 Nd3 Re4 f5 Ng3 Rf3 Ne2+ Kb1; white_wins 810; black_wins 129; draws 57; 
rnbqkb1r/pppp2pp/5n2/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - acd 36; bm Nxe5; cce 160; ce 145; pm Nxe5 {18} d4 {2} Nc3 {2} d3 {1}; pv Nxe5 Qe7 d4 Nc6 O-O fxe4 Bf4 d5 Bb3 Be6 c4 dxc4 Ba4 Bd7 Nc3 O-O-O Bxc6 Bxc6 Nxc6 bxc6 Rb1 Qb4 Be5 Bd6 Bxf6 gxf6 Qg4+ Kb7 Qxe4 Rhe8 Qf3 Qb6 Rfd1 Bb4 d5 Qc5 b3 Ka8 Na4 Qb5 dxc6 Rxd1+ Rxd1 cxb3 axb3 Qe5 g3 Qe6; white_wins 702; black_wins 284; draws 69; Opening C40o Latvian Gambit: Morgado Variation; 
rnb1kbnr/ppp3pp/3p1q2/8/3Pp3/4N3/PPP2PPP/RNBQKB1R b KQkq - acd 45; bm Nc6; cce -59; ce -101; pm Nc6 {17} c6 {6} Qg6 {2} Qd8 {1} Qf7 {1}; pv Nc6 c3; white_wins 509; black_wins 316; draws 392; Opening C40w Latvian Gambit: Nimzowitsch Variation; 
rnbqkbnr/p1pp2pp/8/1p2pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R w KQkq - acd 36; bm Bb3; cce 155; ce 191; pm Bxg8 {13} Bb3 {11} Bxb5 {4}; pv Bb3 fxe4 d3 Qe7 Ng5 Nf6 Bf7+ Kd8 Bb3 Ke8 dxe4 Bb7 Nf7 Rg8 Nc3 a5 a3 Na6 Ng5 Rh8 f4 Nc5 fxe5 Qxe5 Nf7 Qe7 Nxh8 Nxb3 cxb3 b4 axb4 axb4 Rxa8+ Bxa8 Na4 Qxe4+ Qe2 Qxe2+ Kxe2 Bd6 Re1 Kf8 Kf2 Bxh2 Kf1; white_wins 846; black_wins 404; draws 0; Opening C40o Latvian Gambit: Strautins Variation; 
rnb1k2r/pppp2pp/5nq1/8/2N1p3/2BP4/PPP2PPP/R2QKB1R w KQkq - acd 36; bm h4; cce 237; ce 160; pm h4; pv h4 O-O h5 Qf7 h6 g6 Ne5 Qe7 dxe4 d6 Nf3 Qxe4+ Be2 Bg4 Qd2 Bxf3 gxf3 Qd5 Qxd5+ Nxd5 Bc4 Rf5 O-O-O c6 Rhe1 Kf7 Rd2 Nd7 Bxd5+ cxd5 Rde2 Ne5 Bxe5 dxe5 Rxe5 Rxe5 Rxe5 Re8 Rxe8 Kxe8 Kd2 Kd7 Ke3 Ke6 f4 Kf5 b4 Kg4 a4 Kh5 Kd4 Kxh6 Kxd5 Kh5 f3 Kh4 f5 gxf5; white_wins 986; black_wins 222; draws 184; 
rnb1k1nr/pppp2pp/6q1/8/2N1p3/2bP4/PPPB1PPP/R2QKB1R w KQkq - acd 36; bm Bxc3; cce 266; ce 154; pm Bxc3; pv Bxc3 Nf6 h4 d5 Ne5 Qf5 g3 O-O Bh3 Qh5 Qxh5 Nxh5 Bxc8 Rxc8 dxe4 dxe4 Rd1 Na6 Ng4 Rd8 Ke2 c5 Ne3 Kf7 Nc4 b6 Nd6+ Ke7 Nxe4 Nb4 Rxd8 Rxd8 Bxb4 cxb4 Rd1 Rxd1 Kxd1 Nf6 Nxf6 Kxf6 Ke2 h6 Kd3 Ke5 f3 Kd5 g4 a5 h5 a4 Ke3 Ke6; white_wins 1101; black_wins 184; draws 186; 
rnbqkb1r/ppp4p/5nN1/3p3Q/2B1p3/8/PPPP1PPP/RNB1K2R w KQkq - acd 36; bm Qe5+; cce -30; ce 109; pm Qe5+ {31} Bb5+ {4}; pv Qe5+ Be7 Nxe7 Qxe7 Qxe7+ Kxe7 Bf1 Bf5 Nc3 Rg8 d3 exd3 cxd3 Nc6 Bf4 d4 Ne2 Nd5 Kd2 Raf8 Bg3 Kd7 Rc1 Ndb4 Nf4 Nxa2 Rc5 Nab4 Be2 Kc8 Re1 Rg7 Bf3 Rgf7 Bh5 Re7 Rxe7 Nxe7 Bh4 Nbc6 Bf3 Bd7 g3 h6 Be4 Nf5; white_wins 469; black_wins 565; draws 499; Opening C40p Latvian Gambit: Svedenborg, 6.Nxg6 Nf6; 
rnb1k1nr/pppp2pp/6q1/8/2N1p3/2BP4/PPP2PPP/R2QKB1R b KQkq - acd 36; bm Nf6; cce -344; ce -150; pm Nf6; pv Nf6 h4 d5 Ne5 Qf5 g3 O-O Bh3 Qh5 Qxh5 Nxh5 Bxc8 Rxc8 dxe4 dxe4 Rd1 Na6 Ng4 Rd8 Ke2 c5 Ne3 b6 Rxd8+ Rxd8 Rd1 Rxd1 Nxd1 Nb4 Bxb4 cxb4 Ke3 Nf6 Kd4 Kf7 c3 bxc3 Nxc3 e3 fxe3 Ke6 Ne4 Nxe4 Kxe4 g6 g4 h6 a4 a5 h5 gxh5 gxh5 Kf6 Kd5 Kg5 Kc6; white_wins 1397; black_wins 93; draws 148; 
rnb1kbnr/pppp2pp/4q3/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R w KQkq - acd 42; bm Ne3; cce 72; ce 267; pm Ne3; pv Ne3 Nc6 Bc4 Qg6 O-O Nf6 d3 Kd8 dxe4 Bc5 Bd3 Qf7 Na4 Bxe3 Bxe3 Re8 f3 d6 Rc1 Ke7 c4 Kf8 Nc3 Kg8 Nd5 b6 Bg5 a5 a3 Bb7 Be2 Kh8 b3 Rac8 Qd2 Ne5 Be3 Qg6 b4 axb4 axb4 h6 Nf4 Qf7 b5 Nfd7 Bd4 Qe7 h3 Nc5 Nd5; white_wins 811; black_wins 535; draws 384; 
rnb1k1nr/pppp2pp/6q1/8/1bN1p3/2NP4/PPPB1PPP/R2QKB1R b KQkq - acd 36; bm Nf6; cce -323; ce -109; pm Nf6; pv Nf6 Nb5 Bxd2+ Qxd2 Na6 dxe4 Qxe4+ Ne3 O-O O-O-O d6 Nc3 Qe7 Bxa6 bxa6 Rhe1 Qf7 f3 Bb7 Qd4 Rfe8 Nc4 Rxe1 Rxe1 Re8 Rxe8+ Nxe8 b4 Bc8 Kb2 Be6 Ne3 Qf6 Ne2 Kf7 a3 Qxd4+ Nxd4 Nf6 c4 h6 Kc3 g5 h3 Bd7 c5 dxc5 bxc5 a5 Kc4 Bc8 Kb5; white_wins 1683; black_wins 134; draws 302; 
rnb1k1nr/pppp2pp/6q1/8/1bN1p3/2NP4/PPP2PPP/R1BQKB1R w KQkq - acd 40; bm Ne3; cce 243; ce 112; pm Bd2 {43} dxe4 {8} a3 {1}; pv Ne3 Nf6; white_wins 1547; black_wins 339; draws 341; 
rnb1kbnr/pppp2pp/6q1/8/2N1p3/2NP4/PPP2PPP/R1BQKB1R b KQkq - acd 36; bm Nf6; cce -304; ce -127; pm Nf6; pv Nf6 dxe4 Bb4 Ne3 Bxc3+ bxc3 Qxe4 Bd3 Qc6 O-O O-O Ng4 d5 Nxf6+ Qxf6 Rb1 Qf7 Rb4 Nd7 Bg5 Nf6 Rf4 Be6 Bxf6 gxf6 Re1 f5 Re5 Rae8 Qe2 a5 Bxf5 Bxf5 Rfxf5 Qxf5 Rxe8 Rxe8 Qxe8+ Kg7 h4 c6 Qe7+ Qf7 Qg5+ Qg6 Kh2 Qxg5 hxg5 h6 gxh6+ Kxh6 f4 Kg6 g4 c5 Kg2 Kf6 Kf3; white_wins 1938; black_wins 248; draws 304; 
rnbqkb1r/pppp2pp/5n2/4N3/3Pp3/8/PPP2PPP/RNBQKB1R w KQkq - acd 36; bm Be2; cce 78; ce 41; pm Be2 {21} Bg5 {21} Nc3 {8} Bc4 {6} Ng4 {4} Bb5 {3} c3 {1}; pv Be2 Be7 O-O d6 Ng4 O-O c4 c5 d5 Nxg4 Bxg4 Bf6 Nc3 Bxc3 bxc3 Nd7 Be6+ Kh8 Qe2 Re8 a4 Nf6 Bxc8 Rxc8 h3 Qd7 Bf4 h6 a5 Rf8 Rfe1 Nxd5 Bxh6 Nxc3 Qd2 gxh6 Qxc3+ Qg7 Qxg7+ Kxg7 Rxe4 Kf6 Rb1; white_wins 1395; black_wins 845; draws 537; Opening C40m Latvian Gambit: 3.d4 fxe4 5.Nxe5 Nf6; 
rnbk1bnr/pppp1B1p/6p1/4N2Q/3Pp3/8/PPP2PqP/RNB1K2R w KQ - acd 50; bm Bxg6; c2 "lichess.org"; c3 "Bxg6"; c5 "2018.12.11; hs;"; cce 139; ce 103; pm Bxg6 {53} Qg5+ {9} Bg5+ {1}; pv Bxg6 Qxh1+ Ke2 Qxc1 Nf7+ Ke8 Nxh8+ hxg6 Qxg6+ Kd8 Nf7+ Ke7 Nc3 Qxc2+ Ke1 d6 Nd5+ Kd7 Qxg8 e3 fxe3 Na6 Qxf8 Qxb2 Rd1 Kc6 Ne7+ Kb6 Nxc8+ Ka5 Ng5 Qxh2 Qf5+ b5 Nh3 Nb4 Rd2 Qh1+ Ke2 Qg2+ Ke1 Qd5 Ne7 Qxf5 Nxf5 Rf8 e4 d5 Nf2 dxe4 Ne3 c6 Ke2 Re8 a3 Na6 Rc2 Rd8 Rd2 Re8 Rd1 Nc7 Kd2 Ka4 Rb1 a6 Kc2 Ne6 Rb4+ Ka5 Nxe4 Rh8 Nf5 Rh2+ Kb1 Rh1+ Ka2 Kb6 Rb2; white_wins 1566; black_wins 641; draws 584; Opening C40q Latvian Gambit: Poisoned Pawn, Main Line; 
rnb1kbnr/pppp2pp/6q1/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R w KQkq - acd 37; bm Nd5; cce 253; ce 104; pm d3 {55} d4 {6} Ne5 {4} Nd5 {2} f3 {1} Ne3 {1}; pv Nd5 Kd8 Nf4 Qf7 d3 exd3 Bxd3 Nc6 O-O d6 Be2 Bd7 b3 Kc8 a4 Nf6 Bb2 a5 Re1 Be7 Bf3 Re8 h3 Ra6 Qd3 Kb8 Rad1 g5 Nd5 Nxd5 Qxd5 Qxd5 Rxd5 h6 Bh5 Rf8 Bg4 Bxg4 hxg4 Re8 Rdd1; white_wins 2150; black_wins 468; draws 309; 
rnbqkbnr/pppp2pp/8/4p3/3Pp3/5N2/PPP2PPP/RNBQKB1R w KQkq - acd 36; bm Nxe5; cce 56; ce 45; pm Nxe5 {63} Nfd2 {2} Ng5 {2} Bg5 {1}; pv Nxe5 Nf6 Be2 Be7 O-O O-O c4 c5 d5 d6 Ng4 Nxg4 Bxg4 Bf6 Nc3 Bxc3 bxc3 Nd7 Be6+ Kh8 Re1 Nf6 Bg5 h6 Bxc8 Rxc8 Bh4 g5 Bg3 Qd7 Re3 Kg7 Qc2 Rce8 a4 Nh5 a5 Nf6 Rb1 Rf7 Rbe1 Rff8 h3 Qd8 Rb1 Re7 h4 g4; white_wins 1395; black_wins 995; draws 538; Opening C40 Latvian Gambit: 3.d4 Nf6 fxe4 5.Nxe5; 1.e4 e5 2.Nf3 f5 3.d4 Nf6 fxe4 5.Nxe5 *; 
rnb1kbnr/pppp2pp/8/4N3/2BPp3/8/PPP2PqP/RNBQK2R w KQkq - acd 40; bm Qh5+; cce 115; ce 105; pm Qh5+ {67} Rf1 {1}; pv Qh5+ g6; white_wins 1621; black_wins 811; draws 584; Opening Latvian Gambit: Mayet Attack. Poisoned Pawn Variation 1.e4 e5 2.Nf3 f5 3.Bc4 fxe4 4.Nxe5 Qg5 5.d4 Qxg2; CaxtonID: 1262; ECO: C40; 
rnbqkbnr/pppp2pp/8/4pp2/4P3/2N2N2/PPPP1PPP/R1BQKB1R b KQkq - acd 36; bm fxe4; cce -268; ce -94; pm fxe4 {44} Nf6 {16} d6 {11} c6 {1} Nc6 {1}; pv fxe4 Nxe5 Nf6 Ng4 c6 Nxf6+ Qxf6 Nxe4 Qe6 Qh5+ g6 Qe2 d5 Ng5 Qxe2+ Bxe2 Bd6 d3 O-O Be3 Kg7 c3 Re8 O-O Nd7 Nf3 Ne5 Nxe5 Bxe5 Rfe1 Be6 a4 d4 cxd4 Bf6 a5 Bd5 h3 Rf8 a6 bxa6 Rxa6 Rfb8 Bf3 Bxf3 gxf3; white_wins 2329; black_wins 459; draws 470; Opening C40l Latvian Gambit: 3.Nc3; 
rnbqkbnr/pppp2pp/8/4pp2/3PP3/5N2/PPP2PPP/RNBQKB1R b KQkq - acd 36; bm fxe4; cce -86; ce -44; pm fxe4 {78} exd4 {3} d6 {1}; pv fxe4 Nfd2 d6 Nxe4 exd4 Bc4 d5 Qh5+ g6 Qxd5 Qxd5 Bxd5 Ne7 Bb3 Bf5 Nbd2 Bg7 O-O Nbc6 Re1 O-O-O Nf3 h6 Nc5 Kb8 Ne6 Bxe6 Rxe6 d3 c3 g5 Bd2 g4 Nh4 Rd6 Rxd6 cxd6 Be6 Bf6 Nf5 Nxf5 Bxf5 Ne5 a3 Kc7 Be4; white_wins 1743; black_wins 1016; draws 751; Opening C40m Latvian Gambit: 3.d4; 
rnb1kbnr/ppp3pp/3p1q2/8/2NPp3/8/PPP1BPPP/RNBQK2R b KQkq - acd 42; bm Nc6; c3 "Qd8"; cce -213; ce -79; pm Qd8 {38} Nc6 {23} d5 {12} Qf7 {3} h5 {1}; pv Nc6 d5 Nd4 Nc3 Nxe2 Qxe2 Be7 Nxe4 Qg6 O-O Nf6 Bg5 O-O Nxf6+ Bxf6 Bxf6 Qxf6 Qd2 Bd7 Ne3 Qg5 Rae1 b6 c4 a5 b3 a4 Re2 Rae8 Rfe1 Re4 Qd3 Ref4 Nf1 axb3 axb3 h5 Ne3 h4 Qc2 h3 g3 Rf3 Kf1 Re8 Qc3 b5 c5 dxc5 Qxc5; white_wins 2127; black_wins 437; draws 961; Opening C40v Latvian Gambit: 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Be2; 
rnb1kbnr/pp3qpp/2p5/3p2N1/8/4N3/PPPP1PPP/R1BQKB1R b KQkq - acd 36; bm Qf6; cce -189; ce -176; pm Qf6; pv Qf6 h4 h6 Qe2 Ne7 Nf3 Be6 c3 Nd7 Nd4 O-O-O g3 Kb8 Nxe6 Qxe6 d4 Qf7 Bg2 Re8 O-O g5 Qf3 Qh7 Bh3 Nc8 Qf5 Ndb6 a4 Nd6 Qxh7 Rxh7 a5 Nbc4 Nxc4 dxc4 Be3 gxh4 gxh4 Rf7 Rfe1 Ne4 Bg2 Nd6; white_wins 2380; black_wins 713; draws 802; 
rnb1kbnr/pppp2pp/8/4N1q1/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - acd 42; bm d4; c3 "Nf7"; cce 29; ce 118; pm d4 {68} Nf7 {21}; pv d4 Qxg2; white_wins 1744; black_wins 1439; draws 759; Opening C40q Latvian Gambit: Poisoned Pawn Variation; 
rnb1kbnr/pp4pp/2p2q2/3p2N1/8/4N3/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm h4; cce 161; ce 162; pm h4; pv h4 h6 Qe2 Ne7 Nf3 Be6 c3 Nd7 g3 O-O-O Nd4 Kb8 Nxe6 Qxe6 d4 Nc8 Ng4 Qf7 f4 Be7 Bg2 Nd6 Ne5 Nxe5 fxe5 Nf5 Qf3 Rhf8 O-O Qe6 Qd3 Qg6 Bf4 Nxh4 Qxg6 Nxg6 Be3 Bg5 Bxg5 hxg5 Bh3 c5 e6 Ne7 Rf7 Nc6 Bf5 cxd4; white_wins 2183; black_wins 751; draws 1052; 
rnbqkbnr/ppp5/6p1/3p3Q/2B1p3/8/PPPP1PPP/RNB1K2R w KQkq - acd 36; bm Qxh8; cce -3; ce 85; pm Qxg6+ {51} Qxh8 {42}; pv Qxh8 Kf7 Qd4 Be6 Be2 Nc6 Qe3 Qf6 Na3 Nd4 c3 Nf5 Qh3 Ngh6 g4 Nh4 Qg3 Bd6 g5 Bxg3 gxf6 Be5 d4 exd3 Bxd3 Rh8 Nc2 Bxf6 Be3 Ng4 O-O-O Ng2 Rd2 Ne5 Be2 Nxe3 Nxe3 Bg5 h4 Rxh4 Rxh4 Bxh4 Nxd5 Bxf2 Nxc7; white_wins 1566; black_wins 1645; draws 1009; Opening C40p Latvian Gambit: Svedenborg, 6.Nxg6 hxg6; 
rnb1kbnr/pp1p1qpp/2p5/8/4N3/4N3/PPPP1PPP/R1BQKB1R b KQkq - acd 41; bm d5; cce -200; ce -104; pm d5 {95} Be7 {1}; pv d5 Ng5 Qf6 h4 h6 Qe2 Kd8 c4 d4 Nc2 Qg6 Ne4 Nf6 d3 Nxe4 dxe4 c5 h5 Qe6 Bd2 Nc6 O-O-O Bd7 g3 Qg4 Bf4 Qxe2 Bxe2 Ke7 Kb1 Re8 Ne1 Kf7 Bf3 Be7 Nd3 Rhf8 e5 Be6 b3 Rd8 Be4 Kg8 Kb2 Rfe8 f3 Rf8 Bxc6 bxc6; white_wins 2696; black_wins 753; draws 878; 
rnb1kbnr/pp3qpp/2p5/3p4/4N3/4N3/PPPP1PPP/R1BQKB1R w KQkq - acd 40; bm Ng5; cce 174; ce 100; pm Ng5 {90} Ng3 {15}; pv Ng5 Qf6 h4 h6 Qe2 Kd8 Nf3 Bd6 d4 Ne7 Bd2 Nf5 O-O-O Re8 Re1 a5 Qd3 Re7 Ng4 Rxe1+ Bxe1 Qe6 Nge5 Nd7 Bc3 Nxe5 Nxe5 Bxe5 dxe5 c5 Kb1 Kc7 Qf3 Bd7 Bd3 Ne7 Qg3 Qg4 Qxg4 Bxg4 b3 a4 Re1 axb3; white_wins 2669; black_wins 829; draws 1257; 
rnbqkbnr/ppp3pp/8/3pN3/2B1p3/8/PPPP1PPP/RNBQK2R w KQkq - acd 37; bm Qh5+; cce -38; ce 97; pm Qh5+ {111} Bb5+ {2} Bb3 {1}; pv Qh5+; white_wins 1666; black_wins 2157; draws 1365; Opening C40p Latvian Gambit: Svedenborg Variation; 
rnbqkbnr/pppp2pp/8/5P2/4p3/5N2/PPPP1PPP/RNBQKB1R w KQkq - acd 36; bm Nd4; cce 78; ce 128; pm Ne5 {81} Qe2 {13} Nd4 {12} Ng1 {11}; pv Nd4 Qf6 c3 Nc6 d3 Nxd4 cxd4 Qxf5 Nc3 d5 dxe4 dxe4 Be2 Nf6 O-O Bd6 f3 Qh5 g3 e3 Qb3 Bh3 Re1 O-O-O Nb5 Kb8 Bxe3 Qd5 Qxd5 Nxd5 Nxd6 Rxd6 Bd2 Rhd8 Rac1 h6 f4 c6 Bd3 Nc7 Bc3 R6d7 Bc4 Nb5 Bxb5 cxb5 Re5 g6 Rxb5 b6 Re5; white_wins 2546; black_wins 1554; draws 1237; Opening C40n Latvian Gambit: 3.exf5 e4; 
r1bqkbnr/pppp2pp/2n5/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - acd 44; bm Qh5+; cce 190; ce 237; pm Nxc6 {71} Qh5+ {38} d4 {20} Nc4 {1}; pv Qh5+ g6 Nxg6 Nf6 Qh3 Rg8 Nxf8 Rxf8 exf5 Qe7+ Qe3 d6 d3 Nd4 Qxe7+ Kxe7 Na3 Nxf5 g3 Kf7 Bg2 Re8+ Kf1 Rb8 b3 b5 Bb2 Bb7 Bxb7 Rxb7 Re1 Rxe1+ Kxe1 d5 c3 c5 Kd2 Ng4 Nc2 Ne5 Ba3 Rc7 d4 Nf3+ Ke2 cxd4 Kxf3 Rxc3+ Kg4 Rxc2 Kxf5 Rxf2+ Ke5 Rxa2 Bb4 d3 Kxd5; white_wins 3602; black_wins 1092; draws 1150; Opening C40s Latvian Gambit: 3.Nxe5 Nc6; 
rnbqkbnr/pppp2pp/8/4pP2/8/5N2/PPPP1PPP/RNBQKB1R b KQkq - acd 36; bm Nc6; cce -108; ce -66; pm e4 {106} d6 {29} Bc5 {4} Qe7 {3} Nf6 {2}; pv Nc6 d4 exd4 Nxd4 Nf6 Nc3 Bb4 Nxc6 bxc6 a3 Bxc3+ bxc3 Qe7+ Qe2 d6 Qxe7+ Kxe7 Bd3 Nd7 O-O Nc5 Re1+ Kf6 g4 Nxd3 cxd3 Rb8 Be3 c5 h4 h6 d4 cxd4 cxd4 Bb7 Rac1 Rhc8 Rc3 Bf3 Bxh6 Bxg4 Bg5+ Kxf5 Re7 Kg6; white_wins 3314; black_wins 1671; draws 1601; Opening C40n Latvian Gambit: 3.exf5; 
rnb1kbnr/pppp1qpp/8/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R b KQkq - acd 39; bm d5; cce -227; ce -90; pm c6 {146} Nf6 {11} d5 {9} Nc6 {1}; pv d5 Nexd5 c6 Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Nc5 Nxe6 Qxe6 Qe2 Qd7 Bc4 Bd6 Be3 Rhe8 Rad1 Qf5 Qf3 Qxf3 gxf3 Kc7 Rxd6 Kxd6 Rd1+ Kc7 Rxd8 Rxe3 fxe3 Kxd8 Kf2 Kc7 a3 Ncd7 Ne2 Ne5 Be6 Kd6 Bb3; white_wins 4950; black_wins 1036; draws 1650; 
rnb1kbnr/pp1p1qpp/2p5/8/4p3/2N1N3/PPPP1PPP/R1BQKB1R w KQkq - acd 41; bm d3; cce 199; ce 137; pm Nxe4 {98} d3 {75}; pv d3 exd3 Bxd3 d5 O-O Nf6 Re1 Kd8 Nf5 Nbd7 Nd4 Nc5 Bf4 Be7 Qd2 Bd7 Bf5 Bxf5 Nxf5 Re8 b4 Nh5 bxc5 Qxf5 Nxd5 Qxd5 Rad1 Qxd2 Rxd2+ Kc8 Bd6 Nf6 Rxe7 Rxe7 Bxe7 Kc7 Bd6+ Kd7 Bf8+ Kc7 Bxg7 Nd7 Bd4 Re8 Be3 Nf6 Rd1 Nd5 Bd4; white_wins 4627; black_wins 1147; draws 2069; 
rnbqkbnr/pppp2pp/8/4p3/2B1p3/5N2/PPPP1PPP/RNBQK2R w KQkq - acd 41; bm Nxe5; c2 "lichess.org"; c3 "O-O"; cce -23; ce -2; pm Nxe5 {175} Bxg8 {1} Ng1 {1}; pv Nxe5 Qg5 d4 Qxg2 Qh5+ g6 Bf7+ Kd8 Qg5+ Qxg5 Bxg5+ Be7 Bb3 Bxg5 Nf7+ Ke8 Nxg5 Ne7 Nxe4 Rf8 c4 Nf5 d5 d6 Nbc3 Nd4 O-O-O Nxb3+ axb3 Nd7 Rhe1 Ne5 Nc5 Rxf2 Nd3 Rf5 b4 Kd8 Nxe5 Rxe5 Rxe5 dxe5 d6 cxd6 Rxd6+ Ke7 Rd5 Be6 Rxe5 Rf8 c5 Rf2 Re2 Rxe2; white_wins 2839; black_wins 3146; draws 2050; Opening C40p Latvian Gambit: 3.Bc4 fxe4; 
rnb1kbnr/ppp3pp/3p1q2/8/2NPp3/2N5/PPP2PPP/R1BQKB1R b KQkq - acd 40; bm Qf7; c3 "Qg6"; cce -181; ce -115; pm Qg6 {191} Qf7 {12} Bf5 {10} Ne7 {5} Qe6 {1}; pv Qf7 Be2 Nf6 Bg5 Be7 Bxf6 Bxf6 Nxe4 O-O O-O Nd7 Ne3 d5 Bd3 Re8 Nxf6+ Nxf6 Qf3 c6 c3 g6 Rae1 Be6 Nc2 Nh5 Qxf7+ Kxf7 g3 Ng7 Kg2 a5 Ne3 Nf5 Nxf5 Bxf5 Bxf5 gxf5 Re5 Rxe5 dxe5 a4 a3 Ke6 f4 b6; white_wins 5835; black_wins 1886; draws 1920; Opening C40x Latvian Gambit: 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4 6.Nc3; 
rnb1kbnr/pppp1qpp/8/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R w KQkq - acd 36; bm Ne3; cce 166; ce 87; pm Ne3 {185} d4 {30} Ne5 {3} d3 {1} Nxe4 {1} Qe2 {1}; pv Ne3 d5 Nexd5 c6 Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Bg4 f3 Bc5 Be3 Rhe8 Bf2 Bh5 Na4 Bxd4 Bxd4 Qd5 c3 c5 Bf2 Ne5 Bf5+ Kb8 Qxd5 Rxd5 Bh3 b6 Rad1 Kb7 Rxd5 Nxd5 b3 Nf6 c4; white_wins 5578; black_wins 1782; draws 2756; 
rnbqkbnr/pppp2pp/8/4pp2/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - acd 44; bm fxe4; c3 "fxe4"; c5 "Jereon.TCEC.13.50"; cce -32; ce -39; pm fxe4 {181} b5 {18} Nc6 {13} d6 {9} Nf6 {8} c6 {1} d5 {1} Qe7 {1}; pv fxe4; white_wins 4535; black_wins 3752; draws 2185; Opening C40o Latvian Gambit: 3.Bc4; 
rnb1kbnr/pppp2pp/5q2/8/2N1p3/2N5/PPPP1PPP/R1BQKB1R b KQkq - acd 40; bm Qf7; cce -235; ce -92; pm Qf7 {169} Qg6 {54} Qe6 {25} c6 {7} Na6 {3} Ne7 {3} Bc5 {1} d6 {1} Qe7 {1}; pv Qf7 Ne3 d5 Nexd5 c6 Ne3 Nf6 d4 exd3 Bxd3 Be6 O-O Nbd7 Nf5 O-O-O Nd4 Bg4 f3 Bc5 fxg4 Bxd4+ Kh1 h6 Bf4 Be5 Qf3 Rhe8 Bf5 Kb8 Rad1 Bxf4 Qxf4+ Ka8 Qd6 Qg8 Qc7 Nc5 Rxd8+ Rxd8 Qe7 Qf8 Qxf8 Rxf8 Kg1 Kb8 h3; white_wins 8110; black_wins 1751; draws 2145; Opening Latvian Gambit: Accepted. Leonhardt Variation 1.e4 e5 2.Nf3 f5 3.Nxe5 Qf6 4.Nc4 fxe4 5.Nc3; CaxtonID: 1249; ECO: C40; 
rnb1kbnr/ppp3pp/3p1q2/5p2/2NPP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 40; bm fxe4; c3 "fxe4"; cce -183; ce -110; pm fxe4 {273} c6 {1} d5 {1}; pv fxe4 Nc3 Qf7 Be2 Nf6 Bg5 Be7 Bxf6 Bxf6 Nxe4 O-O O-O Nd7 Ne3 d5 c3 Bh4 g3 Bd8 Qc2 Nb6 Nc5 Be7 Bd3 Qh5 f4 Bxc5 dxc5 Nd7 b4 Nf6 c4 Be6 Be2 Qh3 cxd5 Nxd5 Nxd5 Bxd5 Bc4 c6 Bxd5+ cxd5 a3; white_wins 7276; black_wins 2194; draws 2780; Opening C40u Latvian Gambit: 3.Nxe5 Qf6 4.d4 d6 5.Nc4; 
rnb1kbnr/pppp2pp/5q2/5p2/2N1P3/8/PPPP1PPP/RNBQKB1R b KQkq - acd 45; bm fxe4; cce -235; ce -110; pm fxe4 {265} b5 {2} Bc5 {1} Nc6 {1}; pv fxe4; white_wins 8305; black_wins 1798; draws 2153; Opening C40t Latvian Gambit: 3.Nxe5 Qf6 4.Nc4; 
rnb1kbnr/pppp2pp/5q2/4Np2/3PP3/8/PPP2PPP/RNBQKB1R b KQkq - acd 40; bm d6; c3 "d6"; cce -183; ce -114; pm d6 {274} fxe4 {3} Qh4 {1}; pv d6 Nc4 fxe4 Nc3 Qf7 Be2 Nf6 Bg5 Be7 O-O O-O Bxf6 Bxf6 Nxe4 Nd7 c3 Kh8 Ne3 d5 Nxf6 Nxf6 Qb3 b6 a4 a5 Qc2 Be6 Bf3 Kg8 Rfe1 Rac8 b4 c6 bxa5 bxa5 Rab1 Rb8 Rxb8 Rxb8 Rb1 Rxb1+ Qxb1 Qc7 g3 Kf7 Bg2 Qe7; white_wins 7374; black_wins 2235; draws 2781; Opening C40u Latvian Gambit: 3.Nxe5 Qf6 4.d4; 
rnb1kbnr/pppp2pp/5q2/8/2N1p3/8/PPPP1PPP/RNBQKB1R w KQkq - acd 40; bm Nc3; cce 172; ce 93; pm Nc3 {278} b3 {5} Ne3 {3} d3 {1}; pv Nc3 Qf7 Ne5 Qf5 Ng4 c6 Ne3 Qf7 Nxe4 d5 Ng5 Qf6 Nf3 Bd6 d4 Ne7 c3 O-O Qc2 h6 Bd3 Be6 h3 Nd7 Bd2 Qf7 O-O-O c5 c4 Rac8 Kb1 Kh8 Bc3 dxc4 Be4 Nd5 Nxd5 Bxd5 Bxd5 Qxd5 dxc5 Qxc5; white_wins 7489; black_wins 2408; draws 3214; 
rnb1kbnr/ppp3pp/3p1q2/8/2NPp3/8/PPP2PPP/RNBQKB1R w KQkq - acd 40; bm Nc3; c3 "Ne3"; cce 160; ce 122; pm Nc3 {219} Be2 {61} Ne3 {27}; pv Nc3 Qf7 Ne3 Nf6 f3 exf3 Qxf3 c6 Bd3 Be6 Nf5 Nbd7 Bf4 O-O-O O-O Nb6 Rae1 Kb8 Qe2 Bxf5 Bxf5 Re8 Be6 Qc7 Qd3 Nh5 Bg4 Rxe1 Rxe1 Nf6 Bf3 Be7 a4 Rf8 Bg3 a5 Qe3 Re8 Qg5 g6 Qxa5 Nc4 Qxc7+ Kxc7 d5 Nxb2 dxc6 bxc6 Re6 Kd7; white_wins 7679; black_wins 2621; draws 3290; Opening C40u Latvian Gambit: 3.Nxe5 Qf6 4.d4 d6 5.Nc4 fxe4; 
rnb1kbnr/ppp3pp/3p1q2/4Np2/3PP3/8/PPP2PPP/RNBQKB1R w KQkq - acd 40; bm Nc4; c3 "Nc4"; cce 162; ce 116; pm Nc4 {314} Nf3 {4} Nd3 {1}; pv Nc4 fxe4 Nc3 Qf7 Be2 Be7 O-O Nf6 Bg5 O-O Bxf6 Bxf6 Nxe4 Nd7 c3 Bh4 Ne3 Nb6 g3 Be7 f4 Bd7 Bh5 g6 Bf3 Rae8 d5 Bf6 Ng4 Bxg4 Nxf6+ Qxf6 Bxg4 Kh8 Qd3 Na4 Qd2 Nc5 Rae1 Kg8 Rxe8 Rxe8 Re1 Rxe1+ Qxe1 Nd3 Qe6+ Qxe6 dxe6; white_wins 8023; black_wins 2744; draws 3314; Opening C40u Latvian Gambit: 3.Nxe5 Qf6 4.d4 d6; 
rnbqkbnr/pppp2pp/8/4Np2/4P3/8/PPPP1PPP/RNBQKB1R b KQkq - acd 41; bm Qf6; c3 "Qf6"; cce -212; ce -144; pm Qf6 {408} Nc6 {69} Nf6 {27} Qe7 {4} d6 {3} fxe4 {2}; pv Qf6 d4 d6 Nc4 fxe4 Nc3 Qg6 f3 Nc6 d5 Ne5 Nxe4 Nf6 Nxf6+ Qxf6 Qe2 Qh4+ Qf2 Qxf2+ Kxf2 Bf5 Nxe5 dxe5 Be3 Bd6 Bb5+ Kf7 Bd3 Bxd3 cxd3 a5 Rac1 Rhc8 Bc5 Ke7 Rhe1 Kd7 Re4 a4 d4 Re8 Bxd6 cxd6 dxe5 Rxe5 Rxe5; white_wins 14921; black_wins 3700; draws 4685; Opening C40r Latvian Gambit: 3.Nxe5; 
rnb1kbnr/pppp2pp/5q2/4Np2/4P3/8/PPPP1PPP/RNBQKB1R w KQkq - acd 46; bm d4; c2 "lichess.org"; c3 "Qh5+"; cce 170; ce 144; pm d4 {299} Nc4 {269} f4 {1}; pv d4; white_wins 14598; black_wins 4761; draws 6114; Opening C40t Latvian Gambit: 3.Nxe5 Qf6; 
rnbqkbnr/pppp2pp/8/4pp2/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - acd 48; bm Nxe5; c3 "Bc4"; cce 127; ce 149; pm Nxe5 {668} Bc4 {140} exf5 {105} d4 {45} Nc3 {40} d3 {16} Qe2 {1}; pv Nxe5 Nf6 Bc4 Qe7 d4 Nc6 O-O fxe4 Bf4 d5 Bb3 Be6 c4 dxc4 Ba4 Bd7 Nc3 O-O-O Bxc6 Bxc6 Nxc6 bxc6 Rb1 Qb4 Be5 Be7 Qe2 Rhe8 Rfc1 Bd6 Bxf6 gxf6 Nxe4 Kb8 Qf3 c5 dxc5 Bxc5 a3 Qb5 b3 c3 a4 Qc6 Nxc5 Qxc5 Rxc3 Qd5 Qxd5 Rxd5 Rbc1 Re7 g3 Kb7 Kg2 Kc8 Rc5 Rd2; white_wins 24421; black_wins 10941; draws 10482; Opening C40j Latvian Gambit; 

The problem is (as I see it) not that Latvian Gambit players {playing as black, obviously} have to carefully step through a mine field and not step on any mines, but that they have to step right on the detonators and have the mines not explode.

I have it in my list of nearly unplayable gambits.
There are, as you can see, many eminently playable positions in the Latvian Gambit. The problem is getting to those positions.

But the Latvians do have Kristaps Porzingis, who can play some pretty good basketball.

[Ovyron]

A demonstration with a few games is not a proof.

People have demonstrated to themselves that 1.g4 is lost. If you played a game and couldn't find a defense for 1.g4 you'd also prove it to yourself. Not unlike any other position you think is lost.

[jdart]

Here is some data for the Latvian Gambit:

I don't think those are all Latvian positions, for example:

[d]rnbqkb1r/ppp2ppp/4n3/3pP3/8/3P1Q2/PPP3PP/RNB1KBNR w KQkq -

Black apparently hasn't played .. f5.

But your comment about the opening is valid. A lot of the entertaining positions for Black are in lines White is not obliged to play, and won't play, if he has book knowledge.

[bob]

I used to play this all the time (black obviously) when I needed a full point. It is filled with tactical opportunities. Is it winnable by black? Absolutely. Is it a forced win for white with perfect play? Probably, but not proven. But dangerous for white. Certainly. Dangerous for black as well.

Did you ever encounter 4.Nc4!?

Too long ago. late 60's into 70's. 50ish years ago...

[bob]

As a side note, asking if Latvian Gambit is losing is like asking if Budapest Gambit is losing or Damiano Defence is losing. They are questions without answers IMHO because we do not have the tools for answer them.

We could answer that 1.g4 loses by force though, so I wonder what makes such gambits harder.

How can you answer that g4 loses? Only way to prove it is to search to the end of all lines. Not doable. So probably? Sure. Definitely? Nope.

[Werewolf]

10. Qxf3

10...Be6

[Ovyron]

How can you answer that g4 loses? Only way to prove it is to search to the end of all lines. Not doable. So probably? Sure. Definitely? Nope.

Yes, definitively. I'm willing to provide lines one by one (where black mates against anything) but that'd require you to send your best defense of the move (and continue playing until you're convinced your line loses).

Beating the best defense is enough to demonstrate it.

You don't need to search all lines, just a method to find a win from the black side for any line (which has been done... for all lines that have been tried.)

I can also state that 1.e4 is definitively drawn and that I can provide a series of moves by black that draw against any attack by white you send (again, just the defense against THE BEST attack is enough.)

The ship already sailed, and we didn't need nowhere to check every line. It's actually sad that most people will not know, and others will not believe it.