rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R b KQkq - 1 5 ; D30 Semi-Slav Defense: Quiet Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - 2 6 ; D30 Semi-Slav Defense: Quiet Variation
rnbqkbnr/pp3ppp/2p1p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 4 ; D31 Semi-Slav Defense: Accelerated Move Order
rnbqkbnr/pp4pp/2p1p3/3p1p2/2PP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - 0 5 ; D31 Semi-Slav Defense: Anti-Noteboom, Stonewall Variation
rnbqkbnr/pp4pp/2p1p3/3p1p2/2PP2P1/2N1P3/PP3P1P/R1BQKBNR b KQkq - 0 5 ; D31 Semi-Slav Defense: Anti-Noteboom, Stonewall Variation, Portisch Gambit
rnbqkbnr/pp3ppp/2p1p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - 0 5 ; D31 Semi-Slav Defense: Gunderam Gambit
rnbqkbnr/pp3ppp/2p1p3/3p4/2PPP3/2N5/PP3PPP/R1BQKBNR b KQkq - 0 4 ; D31 Semi-Slav Defense: Marshall Gambit
rnbqk1nr/pp3ppp/2p1p3/8/1bPP4/2N5/PP3PPP/R1BQKBNR b KQkq - 2 6 ; D31 Semi-Slav Defense: Marshall Gambit, Forgotten Variation
rnbqk1nr/pp3ppp/2p1p3/8/1bPPN3/8/PP1B1PPP/R2QKBNR b KQkq - 2 6 ; D31 Semi-Slav Defense: Marshall Gambit, Main Line
rnb1k1nr/pp3ppp/4p3/2B5/2P5/8/PP2BPqP/R2QK1NR w KQkq - 0 10 ; D31 Semi-Slav Defense: Marshall Gambit, Tolush Variation
rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 5 ; D31 Semi-Slav Defense: Noteboom Variation
rnbqk1nr/p4ppp/4p3/1p6/2pP4/2P1PN2/5PPP/R1BQKB1R w KQkq - 0 9 ; D31 Semi-Slav Defense: Noteboom Variation, Abrahams Variation
rnbqkbnr/pp3ppp/2p1p3/8/2pP4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - 0 5 ; D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Gambit
rnbqkbnr/pp3ppp/2p1p3/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - 1 5 ; D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation
rnbqkbnr/pp4pp/2p1pp2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 0 6 ; D31 Semi-Slav Defense: Noteboom Variation, Anti-Noteboom Variation, Belyavsky Line
rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 5 ; D43 Semi-Slav Defense
rnbqkb1r/pp3pp1/2p1pn1p/3p4/2PP3B/2N2N2/PP2PPPP/R2QKB1R b KQkq - 1 6 ; D43 Semi-Slav Defense: Anti-Moscow Gambit
rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/1QN2N2/PP2PPPP/R3KB1R b KQkq - 1 7 ; D43 Semi-Slav Defense: Hastings Variation
rnb1kb1r/pp3pp1/2p1pq1p/3p4/2PP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 0 7 ; D43 Semi-Slav Defense: Moscow Variation
rnbqkb1r/pp3ppp/2p1pn2/6B1/2pPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - 0 6 ; D44 Semi-Slav Defense: Botvinnik Variation
rnbqkb1r/p4p2/2p1pn1p/1p2P1N1/2pP3B/2N5/PP3PPP/R2QKB1R b KQkq - 0 9 ; D44 Semi-Slav Defense: Botvinnik Variation
rnbqkb1r/p4p2/2p1p2p/1p1nP1N1/2pP3B/2N5/PP3PPP/R2QKB1R w KQkq - 1 10 ; D44 Semi-Slav Defense: Botvinnik Variation, Alatortsev System
rnbqkb1r/p4p2/2p1pP1p/1p2N3/2pP3p/2N5/PP3PPP/R2QKB1R b KQkq - 1 10 ; D44 Semi-Slav Defense: Botvinnik Variation, Ekstrom Variation
r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N3P1/PP3P1P/R2QKB1R b KQkq - 0 11 ; D44 Semi-Slav Defense: Botvinnik Variation, Lilienthal Variation
r1bqkb1r/p2n1p2/2p1pn2/1p2P1B1/2pP4/2N2Q2/PP3PPP/R3KB1R b KQkq - 2 11 ; D44 Semi-Slav Defense: Botvinnik Variation, Szabo Variation
rnbqkb1r/1p3ppp/p1p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - 0 6 ; D45 Semi-Slav Defense: Accelerated Meran Variation
rnbqkb1r/pp3ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - 1 5 ; D45 Semi-Slav Defense: Main Line
r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - 2 6 ; D45 Semi-Slav Defense: Normal Variation
r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/1PN1PN2/PB3PPP/R2QKB1R w KQ - 1 8 ; D45 Semi-Slav Defense: Normal Variation
r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/1PN1PN2/PB2BPPP/R2QK2R b KQ - 4 8 ; D45 Semi-Slav Defense: Normal Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3pN3/2PP4/2N1P3/PP3PPP/R1BQKB1R b KQkq - 2 6 ; D45 Semi-Slav Defense: Rubinstein System
r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2N1PN2/PPQ2PPP/R1B1KB1R b KQkq - 3 6 ; D45 Semi-Slav Defense: Stoltz Variation
r1bqkb1r/p2n1ppp/1pp1pn2/3p4/2PP4/1PN1PN2/P1Q2PPP/R1B1KB1R b KQkq - 0 7 ; D45 Semi-Slav Defense: Stoltz Variation
r2qkb1r/pb1n1ppp/1pp1pn2/3p4/2PP4/1PN1PN2/P1Q2PPP/R1B1KB1R w KQkq - 1 8 ; D45 Semi-Slav Defense: Stoltz Variation
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/1PN1PN2/P1Q2PPP/R1B1KB1R b KQkq - 0 7 ; D45 Semi-Slav Defense: Stoltz Variation
r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/1PN1PN2/PBQ2PPP/R3KB1R b KQ - 2 8 ; D45 Semi-Slav Defense: Stoltz Variation
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PPP3/2N2N2/PPQ2PPP/R1B1KB1R b KQkq - 0 7 ; D45 Semi-Slav Defense: Stoltz Variation, Center Variation
r1bqk2r/pp1n1ppp/2pb4/4P3/2P1Q3/5N2/PP3PPP/R1B1KB1R b KQkq - 0 10 ; D45 Semi-Slav Defense: Stoltz Variation, Center Variation, Mikhalchishin Line
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP2P1/2N1PN2/PPQ2P1P/R1B1KB1R b KQkq - 0 7 ; D45 Semi-Slav Defense: Stoltz Variation, Shabalov Attack
rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq - 0 7 ; D45 Semi-Slav Defense: Stonewall Defense
r1bqk2r/pp1nbppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 4 7 ; D46 Semi-Slav Defense: Bogoljubow Variation
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 4 7 ; D46 Semi-Slav Defense: Chigorin Defense
r1bqk2r/pp1n1ppp/2pbpn2/3p4/2PP4/2NBPN2/PPQ2PPP/R1B1K2R b KQkq - 5 7 ; D46 Semi-Slav Defense: Chigorin Defense
r1bq1rk1/pp1n1ppp/2pbpn2/3p4/2PP4/1PNBPN2/PB3PPP/R2QK2R b KQ - 4 8 ; D46 Semi-Slav Defense: Chigorin Defense
r2qkb1r/pb1n1ppp/1pp1pn2/3p4/2PP4/1PNBPN2/P1Q2PPP/R1B1K2R b KQkq - 2 8 ; D46 Semi-Slav Defense: Chigorin Defense
r1bqr1k1/pp1n1ppp/2pbpn2/3p4/2PP4/1PNBPN2/PBQ2PPP/R3K2R b KQ - 4 9 ; D46 Semi-Slav Defense: Chigorin Defense
r1b2rk1/pp1nqppp/2pbpn2/3p4/2PP4/1PNBPN2/PBQ2PPP/R3K2R b KQ - 4 9 ; D46 Semi-Slav Defense: Chigorin Defense
r1bq1rk1/p2n1ppp/2pbpn2/1p6/3P4/2NBPN2/PPQ2PPP/R1B2RK1 b - - 5 10 ; D46 Semi-Slav Defense: Chigorin Defense
r2q1rk1/pb1n1ppp/2pbpn2/1p6/3P4/P1NBPN2/1PQ2PPP/R1B2RK1 b - - 2 11 ; D46 Semi-Slav Defense: Chigorin Defense
r1bqkb1r/pp1n1ppp/2p1pn2/3p4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQkq - 3 6 ; D46 Semi-Slav Defense: Main Line
r2q1rk1/pb1nbppp/1pp1pn2/3p4/2PP4/1PNBPN2/PBQ2PPP/R4RK1 b - - 6 10 ; D46 Semi-Slav Defense: Main Line
r1bqk2r/pp1n1ppp/2p1pn2/3p4/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 4 7 ; D46 Semi-Slav Defense: Romih Variation
r1bqkb1r/p2n1ppp/2p1pn2/1p6/2BP4/2N1PN2/PP3PPP/R1BQK2R w KQkq - 0 8 ; D47 Semi-Slav Defense: Meran Variation
r1bqkb1r/p2n1ppp/2p1pn2/8/1p1P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 0 9 ; D47 Semi-Slav Defense: Meran Variation, Lundin Variation
r2qkb1r/pb1n1ppp/2p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 2 9 ; D47 Semi-Slav Defense: Meran Variation, Wade Variation
r2qkb1r/pb1n1ppp/4p3/3nP3/Np1N4/3B4/PP3PPP/R1BQ1RK1 b kq - 0 13 ; D47 Semi-Slav Defense: Meran Variation, Wade Variation, Kaidanov Gambit
r2qkb1r/pb1n1ppp/4p3/2pnP3/Np1P4/3B1N2/PP3PPP/R1BQK2R w KQkq - 1 12 ; D47 Semi-Slav Defense: Meran Variation, Wade Variation, Larsen Variation
r1bqkb1r/pp1n1ppp/2p1pn2/8/2BP4/2N1PN2/PP3PPP/R1BQK2R b KQkq - 0 7 ; D47 Semi-Slav Defense: Semi-Meran Variation
r1bqkb1r/3n1ppp/p1p1pn2/1p6/3P4/2NBPN2/PP3PPP/R1BQK2R w KQkq - 0 9 ; D48 Semi-Slav Defense: Meran Variation
r1bqkb1r/3n1ppp/p3pn2/1pp5/3PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - 0 10 ; D48 Semi-Slav Defense: Meran Variation
r1bqkb1r/3n1ppp/p3pn2/1pp1P3/3P4/2NB1N2/PP3PPP/R1BQK2R b KQkq - 0 10 ; D48 Semi-Slav Defense: Meran Variation, Old Variation
r1bqkb1r/3n1ppp/p1p1pn2/8/1p1PP3/2NB1N2/PP3PPP/R1BQK2R w KQkq - 0 10 ; D48 Semi-Slav Defense: Meran Variation, Pirc Variation
r1bqkb1r/3n1ppp/p3pn2/1ppP4/4P3/2NB1N2/PP3PPP/R1BQK2R b KQkq - 0 10 ; D48 Semi-Slav Defense: Meran Variation, Reynolds' Variation
r1bqkb1r/3n1ppp/p3pn2/1N2P3/3p4/3B1N2/PP3PPP/R1BQK2R b KQkq - 0 11 ; D49 Semi-Slav Defense: Meran Variation, Blumenfeld Variation
r1bqkb1r/3n1ppp/p3p3/1N2P3/3p2n1/3B1N2/PP3PPP/R1BQK2R w KQkq - 1 12 ; D49 Semi-Slav Defense: Meran Variation, Rabinovich Variation
r3kb1r/5ppp/b3pn2/1p1qN1B1/3p4/3B4/PP2QPPP/R4RK1 b kq - 5 15 ; D49 Semi-Slav Defense: Meran Variation, Rellstab Attack
r1bqkb1r/5ppp/p3pn2/1N2n3/3p4/3B1N2/PP3PPP/R1BQK2R w KQkq - 0 12 ; D49 Semi-Slav Defense: Meran Variation, Sozin Variation
r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B4/PP3PPP/R1BQ1RK1 b kq - 1 13 ; D49 Semi-Slav Defense: Meran Variation, Sozin Variation
r1bqkb1r/5ppp/4pn2/1p2N3/3p4/3B1Q2/PP3PPP/R1B1K2R b KQkq - 1 13 ; D49 Semi-Slav Defense: Meran Variation, Stahlberg Variation