rnbqk2r/ppp1bppp/4p3/3p2B1/2PPn3/2N1P3/PP3PPP/R2QKBNR w KQkq - 1 6 ; D53 Queen's Gambit Declined: Lasker Defense
rnbq1rk1/ppp1bpp1/4p2p/3p4/2PPn2B/2N1PN2/PP3PPP/R2QKB1R w KQ - 1 8 ; D56 Queen's Gambit Declined: Lasker Defense
r1bq1rk1/ppp1bpp1/2n1p2p/3p4/2PPn2B/2N1PN2/PP3PPP/2RQKB1R w K - 2 9 ; D56 Queen's Gambit Declined: Lasker Defense
r4rk1/pp1bqpp1/2n1pn1p/2p5/2BP4/2N1PN2/PPQ2PPP/R2R2K1 w - - 4 14 ; D56 Queen's Gambit Declined: Lasker Defense, Russian Variation
rnb2rk1/ppp1qpp1/4p2p/3p4/2PPn3/2N1PN2/PPQ2PPP/R3KB1R b KQ - 1 9 ; D56 Queen's Gambit Declined: Lasker Defense, Teichmann Variation
rnb2rk1/ppp2pp1/3q3p/3p4/3P4/1QP1PN2/P4PPP/R3KB1R w KQ - 2 12 ; D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation
rn1r2k1/ppp1qpp1/4b2p/3p4/2PP4/1Q2PN2/P4PPP/R3KB1R w KQ - 1 13 ; D57 Queen's Gambit Declined: Lasker Defense, Bernstein Variation, Mar del Plata Gambit
rnb2rk1/ppp1qpp1/4p2p/3P4/3P4/2P1PN2/P4PPP/R2QKB1R b KQ - 0 10 ; D57 Queen's Gambit Declined: Lasker Defense, Main Line