rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N2N2/1P2PPPP/R1BQKB1R w KQkq - 1 6 ; D17 Slav Defense: Czech Variation rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP3N/2N5/1P2PPPP/R1BQKB1R b KQkq - 2 6 ; D17 Slav Defense: Czech Variation, Bled Attack r3kb1r/ppqn1ppp/2p2n2/4pb2/P1NP4/2N3P1/1P2PP1P/R1BQKB1R w KQkq - 0 9 ; D17 Slav Defense: Czech Variation, Carlsbad Variation r3kb1r/ppqn1p1p/2p5/4nbp1/P1N2B2/2N3P1/1P2PPBP/R2QK2R w KQkq - 0 12 ; D17 Slav Defense: Czech Variation, Carlsbad Variation, Morozevich Variation rn1qkb1r/pp2pppp/2p2n2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R b KQkq - 2 6 ; D17 Slav Defense: Czech Variation, Krause Attack r2qkb1r/pp2pppp/n1p2n2/4Nb2/P1pPP3/2N5/1P3PPP/R1BQKB1R b KQkq - 0 7 ; D17 Slav Defense: Czech Variation, Krause Attack, Fazekas Gambit rn1qkb1r/pp3ppp/2p1pn2/4Nb2/P1pP4/2N5/1P2PPPP/R1BQKB1R w KQkq - 0 7 ; D17 Slav Defense: Czech Variation, Wiesbaden Variation rn1qk2r/pp3ppp/2p1pn2/4Nb2/PbpPP3/2N2P2/1P4PP/R1BQKB1R b KQkq - 0 8 ; D17 Slav Defense: Czech Variation, Wiesbaden Variation, Sharp Line rn1qkb1r/pp2pppp/2p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R b KQkq - 0 6 ; D18 Slav Defense: Czech Variation, Classical System r2qkb1r/pp2pppp/n1p2n2/5b2/P1pP4/2N1PN2/1P3PPP/R1BQKB1R w KQkq - 1 7 ; D18 Slav Defense: Czech Variation, Lasker Variation rn1q1rk1/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P2QPPP/R1B2RK1 b - - 4 9 ; D19 Slav Defense: Czech Variation, Classical System, Main Line rn1qk2r/pp3ppp/2p1pn2/5b2/PbBP4/2N1PN2/1P3PPP/R1BQ1RK1 b kq - 2 8 ; D19 Slav Defense: Czech Variation, Dutch Variation rn1q1rk1/pp3ppp/2p1p3/5b2/PbBPn1P1/2N1PN2/1P2QP1P/R1B2RK1 b - - 0 10 ; D19 Slav Defense: Czech Variation, Dutch Variation, Sämisch Variation