rnbqkbnr/ppp1pppp/8/8/2pP4/8/PP2PPPP/RNBQKBNR w KQkq - 0 3 ; D20 Queen's Gambit Accepted
rnbqkbnr/ppp1pppp/8/8/Q1pP4/8/PP2PPPP/RNB1KBNR b KQkq - 1 3 ; D20 Queen's Gambit Accepted: Accelerated Mannheim Variation
rnbqkb1r/ppp1pppp/5n2/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 1 4 ; D20 Queen's Gambit Accepted: Central Variation, Alekhine System
rnbqkbnr/p1p1pppp/8/1p6/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 0 4 ; D20 Queen's Gambit Accepted: Central Variation, Greco Variation
rnbqkbnr/ppp2ppp/8/4p3/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 0 4 ; D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense
rnbqkbnr/ppp2ppp/8/4p3/2BPP3/8/PP3PPP/RNBQK1NR b KQkq - 0 4 ; D20 Queen's Gambit Accepted: Central Variation, McDonnell Defense, Somov Gambit
r1bqkbnr/ppp1pppp/2n5/8/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 1 4 ; D20 Queen's Gambit Accepted: Central Variation, Modern Defense
rnbqkbnr/pp2pppp/8/2p5/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 0 4 ; D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense
rnbqkbnr/p3pppp/8/1ppP4/2p1P3/8/PP3PPP/RNBQKBNR w KQkq - 0 5 ; D20 Queen's Gambit Accepted: Central Variation, Rubinstein Defense, Yefimov Gambit
rnbqkb1r/p3pppp/5n2/1ppP4/2p1P3/2N5/PP3PPP/R1BQKBNR w KQkq - 0 6 ; D20 Queen's Gambit Accepted: Linares Variation
rnbqkbnr/ppp1pppp/8/8/2pP4/4P3/PP3PPP/RNBQKBNR b KQkq - 0 3 ; D20 Queen's Gambit Accepted: Old Variation
rnb1kbnr/ppp1qppp/8/8/2Bp4/PQ2P3/1P3PPP/RNB1K1NR b KQkq - 0 6 ; D20 Queen's Gambit Accepted: Old Variation, Billinger Gambit
rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2PN2/PP3PPP/RNB1K2R b KQkq - 3 6 ; D20 Queen's Gambit Accepted: Old Variation, Christensen Gambit
rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP3PPP/RNB2KNR b kq - 3 6 ; D20 Queen's Gambit Accepted: Old Variation, Korchnoi Gambit
rnb1kbnr/ppp1qppp/8/8/2Bp4/1Q2P3/PP1N1PPP/R1B1K1NR b KQkq - 3 6 ; D20 Queen's Gambit Accepted: Old Variation, Novikov Gambit
rnbqkbnr/ppp1pppp/8/8/2pPP3/8/PP3PPP/RNBQKBNR b KQkq - 0 3 ; D20 Queen's Gambit Accepted: Saduleto Variation
rnbqkbnr/ppp1p1pp/8/5p2/2pPP3/8/PP3PPP/RNBQKBNR w KQkq - 0 4 ; D20 Queen's Gambit Accepted: Schwartz Defense
rnbqkbnr/1pp1pppp/p7/8/2pPP3/5N2/PP3PPP/RNBQKB1R b KQkq - 0 4 ; D21 Queen's Gambit Accepted: Alekhine Defense, Borisenko-Furman Variation
r1bqkbnr/pppnpppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 2 4 ; D21 Queen's Gambit Accepted: Godes Variation
rnbqkbnr/pp2pppp/8/2p5/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D21 Queen's Gambit Accepted: Gunsberg Defense
rnbqkbnr/ppp1pppp/8/8/2pP4/5N2/PP2PPPP/RNBQKB1R b KQkq - 1 3 ; D21 Queen's Gambit Accepted: Normal Variation
rnbqkbnr/ppp2ppp/4p3/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D21 Queen's Gambit Accepted: Rosenthal Variation
rnbqkbnr/p1p1pppp/8/1p6/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D21 Queen's Gambit Accepted: Slav Gambit
rnbqkbnr/1pp1pppp/p7/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 0 4 ; D22 Queen's Gambit Accepted: Alekhine Defense
rn1qkbnr/1pp2ppp/p3p3/3P4/2B3b1/4PN2/PP3PPP/RNBQK2R b KQkq - 0 6 ; D22 Queen's Gambit Accepted: Alekhine Defense, Alatortsev Variation
rnbqkbnr/2p1pppp/p7/1p6/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - 0 5 ; D22 Queen's Gambit Accepted: Alekhine Defense, Haberditz Variation
rnbqkb1r/ppp1pppp/5n2/8/2pP4/5N2/PP2PPPP/RNBQKB1R w KQkq - 2 4 ; D23 Queen's Gambit Accepted
rnbqkb1r/ppp1pppp/5n2/8/Q1pP4/5N2/PP2PPPP/RNB1KB1R b KQkq - 3 4 ; D23 Queen's Gambit Accepted: Mannheim Variation
rnbqkb1r/ppp2ppp/4pn2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - 0 5 ; D24 Queen's Gambit Accepted
rnbqkb1r/ppp2ppp/4pn2/6B1/2pP4/2N2N2/PP2PPPP/R2QKB1R b KQkq - 1 5 ; D24 Queen's Gambit Accepted
rnbqkb1r/1pp1pppp/p4n2/8/2pPP3/2N2N2/PP3PPP/R1BQKB1R b KQkq - 0 5 ; D24 Queen's Gambit Accepted: Bogoljubow Defense
rnbqkb1r/pp3ppp/5n2/2ppP3/2p5/2N2N2/PP3PPP/R1BQKB1R b KQkq - 0 7 ; D24 Queen's Gambit Accepted: Gunsberg Defense, Prianishenmo Gambit
rnbqkb1r/ppp1pppp/5n2/8/2pP4/2N2N2/PP2PPPP/R1BQKB1R b KQkq - 3 4 ; D24 Queen's Gambit Accepted: Showalter Variation
rn1qkb1r/ppp1pppp/5n2/8/2pP2b1/4PN2/PP3PPP/RNBQKB1R w KQkq - 1 5 ; D25 Queen's Gambit Accepted: Janowski-Larsen Variation
rnbqkb1r/ppp1pppp/5n2/8/2pP4/4PN2/PP3PPP/RNBQKB1R b KQkq - 0 4 ; D25 Queen's Gambit Accepted: Normal Variation
rnbqkb1r/ppp1pp1p/5np1/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - 0 5 ; D25 Queen's Gambit Accepted: Smyslov Variation
rn1qkb1r/ppp1pppp/4bn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - 1 5 ; D25 Queen's Gambit Accepted: Winawer Defense
rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQK2R w KQkq - 0 6 ; D26 Queen's Gambit Accepted: Classical Defense
rnbqkb1r/pp3ppp/4pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 b kq - 1 6 ; D26 Queen's Gambit Accepted: Classical Defense, Normal Line
r1bqkb1r/pp3ppp/2n1pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - 2 7 ; D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation
rnbqkb1r/pp3ppp/4pn2/8/2Bp4/4PN2/PP3PPP/RNBQ1RK1 w kq - 0 7 ; D26 Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Exchange Variation
r1bqk2r/5ppp/p1n1pn2/1pb1P3/2B5/5N2/PP2QPPP/RNB2RK1 b kq - 0 10 ; D26 Queen's Gambit Accepted: Classical, Furman Variation
rnbqkb1r/ppp2ppp/4pn2/8/2pP4/4PN2/PP3PPP/RNBQKB1R w KQkq - 0 5 ; D26 Queen's Gambit Accepted: Normal Variation, Traditional System
rnbqk2r/1pp1bppp/p3pn2/8/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - 0 7 ; D26 Queen's Gambit Accepted: Normal Variation, Traditional System
rnbq1rk1/ppp1bppp/4pn2/8/2BP4/4PN2/PP3PPP/RNBQ1RK1 w - - 3 7 ; D26 Queen's Gambit Accepted: Normal Variation, Traditional System
rnbq1rk1/ppp1bppp/4pn2/8/2BP4/2N1PN2/PP3PPP/R1BQ1RK1 b - - 4 7 ; D26 Queen's Gambit Accepted: Normal Variation, Traditional System
rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP3PPP/RNBQ1RK1 w kq - 0 7 ; D27 Queen's Gambit Accepted: Classical Defense, Main Line
rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/2N1PN2/PP3PPP/R1BQ1RK1 b kq - 1 7 ; D27 Queen's Gambit Accepted: Classical Defense, Main Line
rnbqkb1r/1p3ppp/p3pn2/2p5/P1BP4/4PN2/1P3PPP/RNBQ1RK1 b kq - 0 7 ; D27 Queen's Gambit Accepted: Classical Defense, Rubinstein Variation
rnbq1rk1/1p2bppp/p3pn2/2p5/P1BP4/2N1PN2/1P3PPP/R1BQ1RK1 w - - 0 9 ; D27 Queen's Gambit Accepted: Classical Defense, Rubinstein Variation
rnbqkb1r/1p3ppp/p3pn2/2p5/2BPP3/5N2/PP3PPP/RNBQ1RK1 b kq - 0 7 ; D27 Queen's Gambit Accepted: Classical Defense, Russian Gambit
rnbqk2r/1p3ppp/p3pn2/2b5/2B5/4PN2/PP3PPP/RNBQ1RK1 w kq - 0 8 ; D27 Queen's Gambit Accepted: Furman Variation
rnbqkb1r/1p3ppp/p3pn2/2p5/2BP4/4PN2/PP2QPPP/RNB2RK1 b kq - 1 7 ; D28 Queen's Gambit Accepted: Classical Defense, Alekhine System
rnbqkb1r/5ppp/p3pn2/1pp5/2BP4/4PN2/PP2QPPP/RNB2RK1 w kq - 0 8 ; D28 Queen's Gambit Accepted: Classical Defense, Alekhine System
r3kb1r/1bq2ppp/p3pn2/1p1P4/2p5/2N1PN2/PPQ2PPP/R1BR2K1 w kq - 1 14 ; D28 Queen's Gambit Accepted: Classical, Flohr Variation
rn1qkb1r/1b3ppp/p3pn2/1pp5/3P4/1B2PN2/PP2QPPP/RNB2RK1 w kq - 2 9 ; D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line
rn1qkb1r/1b3ppp/p3pn2/1pp5/3P4/1BN1PN2/PP2QPPP/R1B2RK1 b kq - 3 9 ; D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Main Line
r2qk2r/1b1n1ppp/p2bpn2/1pp5/3P4/1BN1PN2/PP2QPPP/R1BR2K1 w kq - 6 11 ; D29 Queen's Gambit Accepted: Classical Defense, Alekhine System, Smyslov Variation