rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP3PPP/R1BQKBNR w KQkq - 0 5 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1qk2r/pbpp1ppp/1p2pn2/8/1bPP4/2NBPN2/PP3PPP/R1BQK2R b KQkq - 3 6 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1q1rk1/pbpp1ppp/1p2pn2/8/1bPP4/2NBPN2/PP3PPP/R1BQK2R w KQ - 4 7 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1q1rk1/pbpp1ppp/1p2pn2/8/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 b - - 5 7 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1q1rk1/pb1p1ppp/1p2pn2/2p5/1bPP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - 0 8 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1q1rk1/pb1pbppp/1p2pn2/8/N1Pp4/P2BPN2/1P3PPP/R1BQ1RK1 w - - 1 10 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1qk2r/pbpp2pp/1p2p3/5p2/1bPPn3/2NBPN2/PPQ2PPP/R1B1K2R w KQkq - 2 8 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn3rk1/pb1pqppp/1p2pn2/2p5/NbPP4/3BPN2/PP3PPP/R1BQ1RK1 w - - 4 9 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1q1rk1/pbpp1ppp/1p2pn2/8/2PP4/2PBPN2/P4PPP/R1BQ1RK1 b - - 4 8 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rnbqk2r/p1pp1ppp/1p2p3/8/1bPPn3/2N1PN2/PPQ2PPP/R1B1KB1R b KQkq - 2 6 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1qk2r/pbpp2pp/1p2p3/5p2/2PPn3/2PBPN2/P1Q2PPP/R1B2RK1 b kq - 1 9 ; E43 Nimzo-Indian Defense: St. Petersburg Variation
rn1qk2r/pbpp1ppp/1p2p3/8/1bPPn3/2NBPN2/PP3PPP/R1BQK2R w KQkq - 4 7 ; E43 Nimzo-Indian Defense: St. Petersburg Variation, with Ne4
rnbqk2r/p1pp1ppp/1p2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R b KQkq - 1 5 ; E44 Nimzo-Indian Defense: St. Petersburg Variation
rnbqk2r/p1pp1ppp/1p2p3/8/1bPPn3/2N1P3/PP2NPPP/R1BQKB1R w KQkq - 2 6 ; E44 Nimzo-Indian Defense: St. Petersburg Variation, American Variation
rnbqk2r/p2p1ppp/1p2pn2/b1p5/2PP4/P1N1P3/1P2NPPP/R1BQKB1R w KQkq - 1 7 ; E44 Nimzo-Indian Defense: St. Petersburg Variation, Romanishin-Psakhis Variation
rn1qk2r/p1pp1ppp/bp2pn2/8/1bPP4/2N1P3/PP2NPPP/R1BQKB1R w KQkq - 2 6 ; E45 Nimzo-Indian Defense: St. Petersburg Variation, Fischer Variation