rn1qkbnr/pp3ppp/2p1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 5 ; D02 Queen's Gambit Declined: Baltic Defense, Pseudo-Slav
rnbqkbnr/pp2pppp/8/2P5/2Pp4/8/PP2PPPP/RNBQKBNR w KQkq - 0 4 ; D06 Queen's Gambit Declined: Austrian Attack, Salvio Countergambit
rnbqkbnr/pp2pppp/8/2pp4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 ; D06 Queen's Gambit Declined: Austrian Defense
rnbqkb1r/pp2pppp/5n2/2pP4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - 1 4 ; D06 Queen's Gambit Declined: Austrian Defense, Gusev Countergambit
rnb1kb1r/pp2pppp/8/q1PP4/4n3/8/PP3PPP/RNBQKBNR w KQkq - 1 6 ; D06 Queen's Gambit Declined: Austrian Defense, Haberditz Variation
rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 1 3 ; D06 Queen's Gambit Declined: Baltic Defense
r2qkbnr/pp2pppp/2n5/8/Q2P4/8/PP2PPPP/RbB1KBNR w KQkq - 0 6 ; D06 Queen's Gambit Declined: Baltic Defense, Argentinian Gambit
r2qkbnr/ppp2ppp/2n1p3/3p1b2/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 2 5 ; D06 Queen's Gambit Declined: Baltic Defense, Pseudo-Chigorin
rn1qkbnr/ppp1pppp/8/3p1b2/2PP4/1Q6/PP2PPPP/RNB1KBNR b KQkq - 2 3 ; D06 Queen's Gambit Declined: Baltic Defense, Queen Attack
rn1qkbnr/ppp2ppp/4p3/3p1b2/2PP4/1QN5/PP2PPPP/R1B1KBNR b KQkq - 1 4 ; D06 Queen's Gambit Declined: Baltic Defense, Queen Attack Deferred
rnbqkb1r/ppp1pppp/5n2/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 1 3 ; D06 Queen's Gambit Declined: Marshall Defense
rnbqkb1r/pp2pppp/2p2n2/3P4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - 0 4 ; D06 Queen's Gambit Declined: Marshall Defense, Tan Gambit
rnbqkbnr/p1p1pppp/8/1p1p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 ; D06 Queen's Gambit Declined: Zilbermints Gambit
r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 1 3 ; D07 Queen's Gambit Declined: Chigorin Defense
r1bqkbnr/ppp1pppp/2n5/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - 2 3 ; D07 Queen's Gambit Declined: Chigorin Defense
r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 4 ; D07 Queen's Gambit Declined: Chigorin Defense
r1b1kbnr/ppp1pppp/2n5/3q4/3P4/8/PP2PPPP/RNBQKBNR w KQkq - 0 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation
r1b1k1nr/ppp2ppp/2n5/3q4/3p4/2B1P3/PP2NPPP/R2QKB1R b KQkq - 1 8 ; D07 Queen's Gambit Declined: Chigorin Defense, Exchange Variation, Costa's Line
r1bqkbnr/ppp1pppp/2n5/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - 1 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Janowski Variation
r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Lazard Gambit
r2qkbnr/ppp1pppp/2n5/3p4/2PP2b1/5N2/PP2PPPP/RNBQKB1R w KQkq - 3 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Main Line
r2qkbnr/ppp1pppp/2n5/3p4/Q1PP2b1/5N2/PP2PPPP/RNB1KB1R b KQkq - 4 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Main Line, Alekhine Variation
r1bqkb1r/ppp1pppp/2n2n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 2 5 ; D07 Queen's Gambit Declined: Chigorin Defense, Modern Gambit
r1bqkbnr/ppp2ppp/2n5/3pp3/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 4 ; D07 Queen's Gambit Declined: Chigorin Defense, Tartakower Gambit
rnbqkbnr/ppp2ppp/8/3pp3/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 ; D08 Queen's Gambit Declined: Albin Countergambit
r1b1kbnr/ppp1qppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - 4 6 ; D08 Queen's Gambit Declined: Albin Countergambit, Balogh Variation
r1bqkbnr/ppp3pp/2n2p2/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R w KQkq - 0 6 ; D08 Queen's Gambit Declined: Albin Countergambit, Janowski Variation
r3k1nr/ppp1qppp/2n5/4P3/1bPp4/5N1P/PP1BPPP1/R2QKB1R w KQkq - 3 9 ; D08 Queen's Gambit Declined: Albin Countergambit, Krenosz Variation
rnbqk1nr/ppp2ppp/8/4P3/1bP5/4p3/PP1B1PPP/RN1QKBNR w KQkq - 0 6 ; D08 Queen's Gambit Declined: Albin Countergambit, Lasker Trap
r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5N2/PP1NPPPP/R1BQKB1R b KQkq - 3 5 ; D08 Queen's Gambit Declined: Albin Countergambit, Modern Line
rnbqkbnr/ppp2ppp/8/4P3/2Pp4/5N2/PP2PPPP/RNBQKB1R b KQkq - 1 4 ; D08 Queen's Gambit Declined: Albin Countergambit, Normal Line
rnbqkbnr/ppp2ppp/8/4P3/2PpP3/8/PP3PPP/RNBQKBNR b KQkq e3 0 4 ; D08 Queen's Gambit Declined: Albin Countergambit, Spassky Variation
rnbqkbnr/pp3ppp/8/2p1P3/2Pp4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 5 ; D08 Queen's Gambit Declined: Albin Countergambit, Tartakower Defense
r1bqkbnr/ppp2ppp/2n5/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R b KQkq - 0 5 ; D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation
r2qkbnr/ppp2ppp/2n1b3/4P3/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - 1 6 ; D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Be6 Line
r2qkbnr/ppp2ppp/2n5/4Pb2/2Pp4/5NP1/PP2PP1P/RNBQKB1R w KQkq - 1 6 ; D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bf5 Line
r2qkbnr/ppp2ppp/2n5/4P3/2Pp2b1/5NP1/PP2PP1P/RNBQKB1R w KQkq - 1 6 ; D09 Queen's Gambit Declined: Albin Countergambit, Fianchetto Variation, Bg4 Line
rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 ; D30 Queen's Gambit Declined
rnbqkb1r/ppp2pp1/4pn1p/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R w KQkq - 0 5 ; D30 Queen's Gambit Declined: Capablanca Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/4PN2/PP1N1PPP/R2QKB1R b KQkq - 0 6 ; D30 Queen's Gambit Declined: Capablanca Variation
r1bqkb1r/pp1n1ppp/4pn2/2pp4/2PP4/3BPN2/PP1N1PPP/R1BQK2R w KQkq - 0 7 ; D30 Queen's Gambit Declined: Semmering Variation
rnbqkb1r/pp3p1p/2p1pnp1/3p4/2PP4/4PN2/PP1N1PPP/R1BQKB1R w KQkq - 0 6 ; D30 Queen's Gambit Declined: Spielmann Variation
rnbqkb1r/pp4pp/2p1p3/3p1p2/2PPn3/3BPN2/PP1N1PPP/R1BQK2R w KQkq - 0 7 ; D30 Queen's Gambit Declined: Stonewall Variation
rnbqkbnr/pp3ppp/4p3/2pp4/2PP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch
rnbqkbnr/pp3ppp/8/2pp2B1/3P4/5N2/PP2PPPP/RN1QKB1R b KQkq - 1 5 ; D30 Queen's Gambit Declined: Tarrasch Defense, Pseudo-Tarrasch Bishop Attack
rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/5N2/PP2PPPP/RN1QKB1R b KQkq - 1 4 ; D30 Queen's Gambit Declined: Traditional Variation
rnbqk2r/ppp2ppp/4pn2/3p2B1/1bPP4/5N2/PP2PPPP/RN1QKB1R w KQkq - 2 5 ; D30 Queen's Gambit Declined: Vienna Variation
rnbqkbnr/p1p2ppp/1p2p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 4 ; D31 Queen's Gambit Declined: Alapin Variation
rnbqk1nr/ppp1bppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 2 4 ; D31 Queen's Gambit Declined: Charousek Variation
rnbqk1nr/ppp1bppp/4p3/8/2PPp3/2N2P2/PP4PP/R1BQKBNR b KQkq - 0 5 ; D31 Queen's Gambit Declined: Charousek Variation, Miladinovic Gambit
rnbqkbnr/1pp2ppp/p3p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 4 ; D31 Queen's Gambit Declined: Janowski Variation
rnbqkbnr/ppp2ppp/4p3/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR b KQkq - 1 3 ; D31 Queen's Gambit Declined: Queen's Knight Variation
rnbqk1nr/5ppp/2p1p3/pp6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - 0 8 ; D31 Queen's Gambit Declined: Semi-Slav, Abrahams Variation
rnb1k1nr/p4ppp/1qp1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - 2 8 ; D31 Queen's Gambit Declined: Semi-Slav, Junge Variation
rnb1k1nr/p3qppp/2p1p3/1p6/PbpP4/2N1PN2/1P1B1PPP/R2QKB1R w KQkq - 3 8 ; D31 Queen's Gambit Declined: Semi-Slav, Koomen Variation
rnbqkbnr/pp3ppp/8/2pp4/3P4/2N5/PP2PPPP/R1BQKBNR w KQkq - 0 5 ; D32 Queen's Gambit Declined: Tarrasch Defense
r1bqk1nr/pp2bppp/2n5/2pp2B1/3P4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 4 7 ; D32 Queen's Gambit Declined: Tarrasch Defense
r1bqk2r/pp2nppp/2n5/2pp4/3P4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 0 8 ; D32 Queen's Gambit Declined: Tarrasch Defense
r1bqkb1r/1p3ppp/p1n2n2/2pp4/3P4/2N1PN2/PP2BPPP/R1BQK2R w KQkq - 2 8 ; D32 Queen's Gambit Declined: Tarrasch Defense
r2q1rk1/p3bppp/1pn1bn2/2pp2B1/3P4/2N2NP1/PP2PPBP/2RQ1RK1 w - - 0 11 ; D34 Queen's Gambit Declined: Tarrasch Defense, Stoltz Variation
rnbqkb1r/ppp2ppp/4pn2/3P4/3P4/2N5/PP2PPPP/R1BQKBNR b KQkq - 0 4 ; D35 Queen's Gambit Declined: Exchange Variation
rnbqk2r/p1p2ppp/1p1b1n2/3p4/3P4/2N1PN2/PP3PPP/R1BQKB1R w KQkq - 0 7 ; D35 Queen's Gambit Declined: Exchange Variation
rnbq1rk1/pp2bppp/2p2n2/3p4/3P4/2NBPN2/PP3PPP/R1BQK2R w KQ - 0 8 ; D35 Queen's Gambit Declined: Exchange Variation
rn1qk2r/ppp1bpp1/5n1p/3p4/3P2bB/2N1P3/PP3PPP/R2QKBNR w KQkq - 2 8 ; D35 Queen's Gambit Declined: Exchange Variation, Carlsen Variation
r1bqrnk1/ppp1bppp/5n2/3p2B1/3P4/2NBP3/PPQ1NPPP/2KR3R b - - 8 10 ; D35 Queen's Gambit Declined: Exchange Variation, Chameleon Variation
rnbqkb1r/ppp2ppp/5n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - 1 5 ; D35 Queen's Gambit Declined: Exchange Variation, Positional Variation
rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - 0 6 ; D35 Queen's Gambit Declined: Exchange Variation, Positional Variation
r1bqkb1r/pppn1ppp/5n2/3p4/3P1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - 1 6 ; D35 Queen's Gambit Declined: Exchange Variation, Sämisch Variation
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP1B2/2N5/PP2PPPP/R2QKBNR b KQkq - 3 4 ; D35 Queen's Gambit Declined: Harrwitz Attack
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N5/PP2PPPP/R1BQKBNR w KQkq - 2 4 ; D35 Queen's Gambit Declined: Normal Defense
rnbqkb1r/pp3ppp/2p2n2/3p2B1/3P4/2N5/PPQ1PPPP/R3KBNR b KQkq - 1 6 ; D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
r1bqk2r/pp1nbppp/2p2n2/3p2B1/3P4/2NBP3/PPQ2PPP/R3K1NR b KQkq - 2 8 ; D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
rnbq1rk1/pp2bppp/2p2n2/3p2B1/3P4/2NBP3/PPQ2PPP/R3K1NR b KQ - 2 8 ; D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
rnbq1rk1/pp2bpp1/2p2n1p/3p4/3P3B/2NBP3/PPQ2PPP/R3K1NR b KQ - 1 9 ; D36 Queen's Gambit Declined: Exchange Variation, Reshevsky Variation
r1bqkb1r/pppn1ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 2 5 ; D37 Queen's Gambit Declined: Barmen Variation
rnbqk2r/ppp1bppp/4pn2/3p4/2PP1B2/2N2N2/PP2PPPP/R2QKB1R b KQkq - 3 5 ; D37 Queen's Gambit Declined: Harrwitz Attack
r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/3RKB1R b K - 0 10 ; D37 Queen's Gambit Declined: Harrwitz Attack
r1b2rk1/pp3ppp/2n1pn2/q1bp4/2P2B2/P1N1PN2/1PQ2PPP/2KR1B1R b - - 2 10 ; D37 Queen's Gambit Declined: Harrwitz Attack
rnbq1rk1/p1p1bppp/1p2pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 7 ; D37 Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense
rnbq1rk1/pp3ppp/4pn2/2bp4/2P2B2/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 8 ; D37 Queen's Gambit Declined: Harrwitz Attack, Main Line
rnbq1rk1/pp2bppp/2p1pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 7 ; D37 Queen's Gambit Declined: Harrwitz Attack, Orthodox Defense
r1bq1rk1/pppnbppp/4pn2/3p4/2PP1B2/2N1PN2/PP3PPP/R2QKB1R w KQ - 1 7 ; D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense
r1bq1rk1/pppnbppp/4pn2/2Pp4/3P1B2/2N1PN2/PP3PPP/R2QKB1R b KQ - 0 7 ; D37 Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line
r1bqkb1r/pppn1pp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/R2QKB1R w KQkq - 0 7 ; D37 Queen's Gambit Declined: Knight Defense, Alekhine Gambit
rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PPQ1PPPP/R3KB1R b KQ - 5 6 ; D37 Queen's Gambit Declined: Miles Variation
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - 1 4 ; D37 Queen's Gambit Declined: Three Knights Variation
rnbq1rk1/ppp1bppp/4pn2/3p4/2PP4/2N1PN2/PP3PPP/R1BQKB1R w KQ - 1 6 ; D37 Queen's Gambit Declined: Three Knights Variation
rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 5 ; D37 Queen's Gambit Declined: Three Knights, Vienna Variation
rnbqkb1r/ppp2ppp/4pn2/8/2pP4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - 0 5 ; D37 Queen's Gambit Declined: Vienna Variation, Quiet Variation
rnbqk2r/ppp2ppp/4pn2/3p4/1bPP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 2 5 ; D38 Queen's Gambit Declined: Ragozin Defense
rnbqk2r/ppp2ppp/4pn2/3p4/QbPP4/2N2N2/PP2PPPP/R1B1KB1R b KQkq - 3 5 ; D38 Queen's Gambit Declined: Ragozin Defense, Alekhine Variation
r1bqk2r/pp1n1ppp/4pn2/2pp2B1/1bPP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - 0 7 ; D38 Queen's Gambit Declined: Westphalian Variation
rnbqk2r/ppp2ppp/4pn2/6B1/1bpP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 0 6 ; D39 Queen's Gambit Declined: Ragozin Defense, Vienna Variation
rnbqkb1r/pp3ppp/4pn2/2pp4/2PP4/2N2N2/PP2PPPP/R1BQKB1R w KQkq - 0 5 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense
r1bqk2r/pp3ppp/2nbpn2/3p4/2PP4/P1N2N2/1P3PPP/R1BQKB1R w KQkq - 1 8 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense
r1b2rk1/pp2qppp/2n1pn2/2bp4/2P1P3/2NB1N2/PP2QPPP/R1B2RK1 b - - 0 10 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Levenfish Variation
rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - 1 5 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation
r1bq1rk1/pp3ppp/2nbpn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQ1RK1 w - - 5 8 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense, Symmetrical Variation
r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQkq - 2 6 ; D40 Queen's Gambit Declined: Semi-Tarrasch Defense, with e3
r1bqkb1r/pp3ppp/2n1pn2/2pp4/2PP4/2N2NP1/PP2PP1P/R1BQKB1R w KQkq - 0 6 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense
rnbqkb1r/pp3ppp/4pn2/2pP4/3P4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - 0 5 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense
rnbqkb1r/pp3ppp/4p3/2pn4/3P4/2N2NP1/PP2PP1P/R1BQKB1R b KQkq - 0 6 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense
r1bqkb1r/pp3ppp/2n1p3/2pn4/3P4/2N2NP1/PP2PPBP/R1BQK2R b KQkq - 2 7 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense
rnbQkb1r/pp3ppp/5n2/8/4p3/2N2N2/PP3PPP/R1B1KB1R b KQkq - 0 8 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Endgame Variation
rnbqkb1r/pp3ppp/4p3/2pn4/3PP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - 0 6 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation
rnbqkb1r/pp3ppp/4p3/2p5/3PP3/2P2N2/P4PPP/R1BQKB1R b KQkq - 0 7 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Exchange Variation
rnbq1rk1/pp3ppp/4p3/1B6/3PP3/5N2/P2Q1PPP/R3K2R b KQ - 2 11 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Kmoch Variation
rnbqkb1r/pp3ppp/4p3/2pn4/3P4/2N1PN2/PP3PPP/R1BQKB1R b KQkq - 0 6 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, Pillsbury Variation
rnb1k2r/pp3ppp/4p3/q7/1b1PP3/5N2/P2B1PPP/R2QKB1R w KQkq - 3 10 ; D41 Queen's Gambit Declined: Semi-Tarrasch Defense, San Sebastian Variation
r1bqkb1r/pp3ppp/2n1p3/2pn4/3P4/2NBPN2/PP3PPP/R1BQK2R b KQkq - 2 7 ; D42 Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line
rnbqkb1r/pp3ppp/4pn2/2pp2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - 0 5 ; D50 Queen's Gambit Declined: Been-Koomen Variation
rnbqkb1r/ppp2ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - 3 4 ; D50 Queen's Gambit Declined: Modern Variation
rnbqkb1r/pp3ppp/4pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR b KQkq - 0 5 ; D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation
rnb1kb1r/pp3ppp/1q2pn2/2pP2B1/3P4/2N5/PP2PPPP/R2QKBNR w KQkq - 1 6 ; D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Canal Variation
rnbqkb1r/pp3ppp/4pn2/3p2B1/2PQ4/2N2N2/PP2PPPP/R3KB1R b KQkq - 0 6 ; D50 Queen's Gambit Declined: Pseudo-Tarrasch Variation, Primitive Pillsbury Variation
rnbqkb1r/1p3ppp/p4n2/1N1pp1B1/Q1P5/2N5/PP2PPPP/R3KB1R b KQkq - 1 8 ; D50 Queen's Gambit Declined: Semi-Tarrasch Defense, Krause Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - 0 6 ; D51 Queen's Gambit Declined: Alekhine Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/P1N1P3/1P3PPP/R2QKBNR b KQkq - 0 6 ; D51 Queen's Gambit Declined: Capablanca Variation, Anti-Cambridge Springs Variation
r1bqk2r/pppn1ppp/4pn2/3p2B1/1bPP4/2N1P3/PP3PPP/R2QKBNR w KQkq - 1 6 ; D51 Queen's Gambit Declined: Manhattan Variation
r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - 4 5 ; D51 Queen's Gambit Declined: Modern Variation, Knight Defense
r1bqkb1r/pppn1ppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR b KQkq - 0 5 ; D51 Queen's Gambit Declined: Modern Variation, Knight Defense
r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1P3/PP3PPP/R2QKBNR w KQkq - 0 6 ; D51 Queen's Gambit Declined: Modern Variation, Knight Defense
r1b1kb1r/pp1n1ppp/2p1pn2/q2p4/2PP4/2N2N2/PP1BPPPP/2RQKB1R b Kkq - 3 7 ; D51 Queen's Gambit Declined: Rochlin Variation
r1bqkb1r/pp1n1ppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - 0 6 ; D52 Queen's Gambit Declined
r1b1kb1r/pp1n1ppp/2p1pn2/q2p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQkq - 1 7 ; D52 Queen's Gambit Declined: Cambridge Springs Defense
r1b1kb1r/pp1n1ppp/2p1pn2/q2P2B1/3P4/2N1PN2/PP3PPP/R2QKB1R b KQkq - 0 7 ; D52 Queen's Gambit Declined: Cambridge Springs Defense
r1b2rk1/pp1n1ppp/2p1pn2/q2p4/1bPP3B/2N1P3/PPQN1PPP/R3KB1R b KQ - 7 9 ; D52 Queen's Gambit Declined: Cambridge Springs Defense, Argentine Variation
r1b1k2r/pp1n1ppp/2p1pn2/q2p2B1/1bPP4/2N1P3/PPQN1PPP/R3KB1R b KQkq - 4 8 ; D52 Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubow Variation
r1b1kb1r/pp1n1ppp/2p1pB2/q2p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQkq - 0 7 ; D52 Queen's Gambit Declined: Cambridge Springs Defense, Capablanca Variation
r1b1kb1r/pp1n1ppp/2p1pn2/q5B1/2pP4/2N1P3/PP1N1PPP/R2QKB1R w KQkq - 0 8 ; D52 Queen's Gambit Declined: Cambridge Springs Defense, Rubinstein Variation
r1b1kb1r/pp1n1ppp/2p1p3/q2n2B1/3P4/2N1PN2/PP3PPP/R2QKB1R w KQkq - 0 8 ; D52 Queen's Gambit Declined: Cambridge Springs Defense, Yugoslav Variation
rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N5/PP2PPPP/R2QKBNR w KQkq - 4 5 ; D53 Queen's Gambit Declined
rnbqk2r/ppp1bppp/4pn2/3p2B1/2PP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - 5 5 ; D53 Queen's Gambit Declined
rnbqk2r/pp2bppp/2p1pn2/6B1/2BP4/2N1PN2/PP3PPP/R2QK2R b KQkq - 0 7 ; D53 Queen's Gambit Declined
rnbqk2r/ppp1bppp/4pn2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R w KQkq - 2 6 ; D53 Queen's Gambit Declined
rnbqk2r/ppp1bppp/4pn2/6B1/2pPP3/2N2N2/PP3PPP/R2QKB1R b KQkq - 0 6 ; D53 Queen's Gambit Declined
r1bq1rk1/ppp1bppp/2n1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - 1 7 ; D53 Queen's Gambit Declined
rnbqk2r/ppp1bppp/4p3/3p2B1/2PPn3/2N1P3/PP3PPP/R2QKBNR w KQkq - 1 6 ; D53 Queen's Gambit Declined: Lasker Defense
rnbqk2r/ppp1bppp/4pB2/3p4/2PP4/2N5/PP2PPPP/R2QKBNR b KQkq - 0 5 ; D53 Queen's Gambit Declined: Modern Variation, Heral Variation
rnbq1rk1/ppp1bpp1/4pn1p/8/2pP3B/2N2N2/PP2PPPP/2RQKB1R w K - 0 8 ; D53 Queen's Gambit Declined: Uhlmann Variation
rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1P3/PP3PPP/2RQKBNR b K - 2 6 ; D54 Queen's Gambit Declined: Neo-Orthodox Variation
rnbq1rk1/ppp1bpp1/4pB1p/3p4/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - 0 7 ; D55 Queen's Gambit Declined: Anti-Tartakower Variation
r1bq1rk1/pp1n1pp1/2p1pb1p/8/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - 0 11 ; D55 Queen's Gambit Declined: Anti-Tartakower Variation, Petrosian Variation
rnbq1rk1/ppp1bppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R b KQ - 0 6 ; D55 Queen's Gambit Declined: Modern Variation, Normal Line
rnbq1rk1/ppp1bpp1/4pn1p/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 7 ; D55 Queen's Gambit Declined: Neo-Orthodox Variation
rnbq1rk1/ppp1bpp1/4pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R b KQ - 0 7 ; D55 Queen's Gambit Declined: Neo-Orthodox Variation, Main Line
rn1q1rk1/pbp1bppp/1p3n2/3pN1B1/3P4/2NBP3/PP3PPP/R2QK2R b KQ - 4 9 ; D55 Queen's Gambit Declined: Pillsbury Attack
r1bq1rk1/ppp1bpp1/2n1pn1p/3p4/2PP3B/2N1PN2/PP3PPP/2RQKB1R b K - 1 8 ; D56 Queen's Gambit Declined
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
rnbq1rk1/p1p1bpp1/1p2pn1p/3p4/2PP3B/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 8 ; D58 Queen's Gambit Declined: Tartakower Defense
rnbq1rk1/p1p1bpp1/1p3n1p/3p4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 9 ; D58 Queen's Gambit Declined: Tartakower Defense, Exchange Variation
rn3rk1/p1p1qpp1/1p2b2p/3p4/3P4/4PN2/PP3PPP/2RQKB1R w K - 2 12 ; D59 Queen's Gambit Declined: Tartakower Defense
rnbq1rk1/p1p1bpp1/1p2p2p/3n4/3P3B/2N1PN2/PP3PPP/R2QKB1R w KQ - 0 9 ; D59 Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/R2QKB1R w KQ - 1 7 ; D60 Queen's Gambit Declined: Orthodox Defense
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2NBPN2/PP3PPP/R2QK2R b KQ - 2 7 ; D60 Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2NBPN2/PP3PPP/R2QK2R w KQ - 0 8 ; D60 Queen's Gambit Declined: Orthodox Defense, Botvinnik Variation
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/1QN1PN2/PP3PPP/R3KB1R b KQ - 2 7 ; D60 Queen's Gambit Declined: Orthodox Defense, Rauzer Variation
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R b KQ - 4 7 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bq1rk1/pp1nbppp/4pn2/2pp2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R w KQ - 0 8 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/R3KB1R w KQ - 0 8 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/P1N1PN2/1PQ2PPP/R3KB1R b KQ - 0 8 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bqr1k1/1ppnbppp/p4n2/3p2B1/3P4/2NBPN2/PPQ2PPP/R3K2R w KQ - 2 10 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/3RKB1R w K - 0 9 ; D61 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation
r1bq1rk1/pp1nbppp/4pn2/2pP2B1/3P4/2N1PN2/PPQ2PPP/R3KB1R b KQ - 0 8 ; D62 Queen's Gambit Declined: Orthodox Defense, Rubinstein Variation, Flohr Line
r1bq1rk1/p1pnbppp/1p3n2/1B1p2B1/3P4/2N1PN2/PP3PPP/2RQK2R b K - 1 9 ; D63 Queen's Gambit Declined: Orthodox Defense, Capablanca Variation
r1bq1rk1/1ppnbppp/p3pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - 0 8 ; D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation
r1bq1rk1/1ppnbppp/p3pn2/2Pp2B1/3P4/2N1PN2/PP3PPP/2RQKB1R b K - 0 8 ; D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation
r1bq1rk1/1p1nbppp/p1p1pn2/2Pp2B1/3P4/2N1PN2/PP3PPP/2RQKB1R w K - 0 9 ; D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation
r1bq1rk1/1p1nbppp/p1p1pn2/2Pp2B1/3P4/2NBPN2/PP3PPP/2RQK2R b K - 1 9 ; D63 Queen's Gambit Declined: Orthodox Defense, Henneberger Variation
r1bq1rk1/pppnbppp/4pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R b K - 2 7 ; D63 Queen's Gambit Declined: Orthodox Defense, Main Line
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PP3PPP/2RQKB1R w K - 0 8 ; D63 Queen's Gambit Declined: Orthodox Defense, Main Line
r1bq1rk1/pp1nbpp1/4pn1p/2pp4/2PP3B/2N1PN2/PP3PPP/2RQKB1R w K - 0 9 ; D63 Queen's Gambit Declined: Orthodox Defense, Main Line
r1bq1rk1/p1pnbppp/1p3n2/3p2B1/3P4/2NBPN2/PP3PPP/2RQK2R b K - 1 9 ; D63 Queen's Gambit Declined: Orthodox Defense, Pillsbury Variation
r1bq1rk1/1ppnbppp/p3pn2/3P2B1/3P4/2N1PN2/PP3PPP/2RQKB1R b K - 0 8 ; D63 Queen's Gambit Declined: Orthodox Defense, Swiss, Carlsbad Variation
r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/P1N1PN2/1PQ2PPP/2R1KB1R b K - 1 9 ; D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R b K - 1 8 ; D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/1p1nbppp/p1p1pn2/3p2B1/2PP4/2N1PN2/PPQ2PPP/2R1KB1R w K - 0 9 ; D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/pp1nbppp/2p1p3/3p2B1/2PPn3/2N1PN2/PPQ2PPP/2R1KB1R w K - 2 9 ; D64 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/1p1nbppp/p1p1pn2/3P2B1/3P4/2N1PN2/PPQ2PPP/2R1KB1R b K - 0 9 ; D65 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/1p1nbppp/p1p2n2/3p2B1/3P4/2NBPN2/PPQ2PPP/2R1K2R b K - 1 10 ; D65 Queen's Gambit Declined: Orthodox Defense, Rubinstein Attack
r1bq1rk1/pp1nbppp/2p1pn2/3p2B1/2PP4/2NBPN2/PP3PPP/2RQK2R b K - 1 8 ; D66 Queen's Gambit Declined: Orthodox Defense, Bd3 Line
r1bq1rk1/pp1nbpp1/2p1pn1p/3p4/2PP3B/2NBPN2/PP3PPP/2RQK2R b K - 1 9 ; D66 Queen's Gambit Declined: Orthodox Defense, Bd3 Line
r1bq1rk1/p2nbppp/2p1pn2/1p4B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - 0 10 ; D66 Queen's Gambit Declined: Orthodox Defense, Fianchetto Variation
r1b2rk1/pp1nqppp/2p1p3/3n4/2BPN3/4PN2/PP3PPP/2RQK2R b K - 1 11 ; D67 Queen's Gambit Declined: Orthodox Defense, Alekhine Variation
r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQK2R w K - 0 11 ; D67 Queen's Gambit Declined: Orthodox Defense, Bd3 Line
r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP4/2N1PN2/PP3PPP/2RQK2R w K - 1 10 ; D67 Queen's Gambit Declined: Orthodox Defense, Capablanca System
r1bq1rk1/pp1nbppp/2p1p3/3n2B1/2BP3P/2N1PN2/PP3PP1/2RQK2R b K - 0 10 ; D67 Queen's Gambit Declined: Orthodox Defense, Janowski Variation
r1b2rk1/pp1nqppp/2p1p3/3n4/2BP4/2N1PN2/PP3PPP/2RQ1RK1 b - - 1 11 ; D67 Queen's Gambit Declined: Orthodox Defense, Main Line
r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/3Q1RK1 w - - 0 13 ; D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation
r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PP3PPP/1Q3RK1 b - - 1 13 ; D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation
r1b2rk1/pp1nqppp/2p5/4p3/2BP4/2R1PN2/PPQ2PPP/5RK1 b - - 1 13 ; D68 Queen's Gambit Declined: Orthodox Defense, Classical Variation
r1b2rk1/pp3ppp/2p5/4q3/2B5/2R1P3/PP3PPP/3Q1RK1 w - - 0 15 ; D69 Queen's Gambit Declined: Orthodox Defense, Classical Variation