Chessmate

Queen's Gambit Accepted · Black

Modern Tabiya, 8.a3 and the ...b5 Expansion · Black (D27)

White replies…

White replies… d4

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Step through the line. Every move has a reason.

Practice this line from memory on the free trainer

More courses in this opening

Continue through the Queen's Gambit repertoire from another tabiya.

Queen's Gambit Accepted · WhiteDifficulty 2/3

White repertoire · ECO D20

Sample line with full explanations: Central Variation, Alekhine System.

Queen's Gambit Declined · WhiteDifficulty 2/3

White repertoire · ECO D32–D41

Sample line with full explanations: Harrwitz Main Line, Rd1.

Queen's Gambit Declined · BlackDifficulty 3/3

Black repertoire · ECO D35–E05

Sample line with full explanations: Tartakower Main Line, Queenside Clamp.

All lines in this course

ECO D20–D27

Every one of these lines is explained move by move in the app — with recall practice and spaced review.

Train this course
  1. Modern Tabiya, 8.a3 and the ...b5 Expansion · BlackSample

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. a3 b5 9. Ba2 Bb7 10. dxc5 Qxd1 11. Rxd1 Bxc5 12. b4 Be7

  2. Modern Tabiya, 8.a4 and Central Liquidation · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. a4 Be7 9. Qe2 cxd4 10. Rd1 e5 11. exd4 exd4 12. Nxd4 Nxd4 13. Qe5 Qd6

  3. Modern Tabiya, 8.Qe2 and ...b5 · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. Qe2 b5 9. Bb3 Bb7 10. Rd1 Be7 11. d5 exd5 12. Nxd5 Nxd5 13. Rxd5 Qc7

  4. Modern Tabiya, 8.dxc5 and the Symmetrical Structure · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. Bd2 O-O 11. Rac1 Bd7 12. Be2 Rfd8

  5. Modern Tabiya, 8.d5 and the ...b5 Counter · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. d5 Nxd5 9. Nxd5 b5 10. Bb3 c4 11. Bxc4 bxc4 12. e4 Bb7 13. Re1 Bb4

  6. Classical 7.dxc5, Early Queen Trade · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. a3 O-O 10. b4 Be7 11. Bb2 Bd7 12. Nbd2 Rfd8

  7. Classical 7.a3, ...a6 and ...b5 Setup · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. a3 a6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. b4 Be7 11. Bb2 O-O 12. Nbd2 Bd7

  8. Classical 7.Qe2, ...b5 and ...Nb4 · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O Nc6 7. Qe2 a6 8. Rd1 b5 9. dxc5 Qc7 10. Bd3 Nb4 11. a4 Nxd3 12. Qxd3 b4

  9. Classical 6.Nc3 Move Order · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. Nc3 Nc6 7. O-O a6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. a3 O-O 11. b4 Be7 12. Be2 b5

  10. Central Variation, 7.Bxe6 Main Line · Black

    1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Be6 7. Bxe6 fxe6 8. Qb3 Qd7 9. Qxb7 Rb8 10. Qa6 Nf6 11. Nbd2 Bb4 12. Nc4 O-O 13. a3 Bc5

  11. Central Variation, 7.Bb5 · Black

    1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Be6 7. Bb5 Bc5 8. b4 Bb6 9. Bb2 Ne7 10. Nxd4 O-O 11. Nxc6 Nxc6 12. Bxc6 Qxd1 13. Rxd1 bxc6

  12. Central Variation, 7.Nbd2 · Black

    1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Be6 7. Nbd2 Qf6 8. Bb5 Ne7 9. Nb3 Bg4 10. Qxd4 Qxd4 11. Nbxd4 Bd7 12. Bf4 Nxd4 13. Bxd7+ Kxd7 14. Nxd4 c5

  13. Central Variation, 8.Ng5 and Queenside Castling · Black

    1. d4 d5 2. c4 dxc4 3. e4 e5 4. Nf3 exd4 5. Bxc4 Nc6 6. O-O Be6 7. Bxe6 fxe6 8. Ng5 Qd7 9. Qh5+ g6 10. Qh3 O-O-O 11. Qxe6 Qxe6 12. Nxe6 Re8 13. Nxf8 Rxf8 14. b3 Nf6

  14. Mannheim Variation, 4.Qa4+ · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Qa4+ Nc6 5. Nc3 e6 6. e3 Be7 7. Bxc4 O-O 8. O-O Bd7 9. Qd1 Na5 10. Bd3 c5 11. e4 cxd4 12. Nxd4 e5

  15. Two Knights Variation, 4...a6 and ...b5 · Black

    1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. Nc3 a6 5. e4 b5 6. e5 Nd5 7. a4 Nxc3 8. bxc3 Qd5 9. g3 Bb7 10. Bg2 Qd7 11. Ba3 g6 12. O-O Bg7

  16. 3.e3 Transposition to the Classical Main Line · Black

    1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Nf3 e6 5. Bxc4 c5 6. O-O Nc6 7. Nc3 a6 8. dxc5 Qxd1 9. Rxd1 Bxc5 10. a3 O-O

  17. Rare 3.Nc3, Development and ...cxd4 · Black

    1. d4 d5 2. c4 dxc4 3. Nc3 Nf6 4. Nf3 a6 5. a4 c5 6. e3 e6 7. Bxc4 Nc6 8. O-O Be7 9. Qd3 O-O 10. Rd1 cxd4 11. exd4 Nb4 12. Qe2 b6

  18. Rare 3.a4, Classical Transposition · Black

    1. d4 d5 2. c4 dxc4 3. a4 Nf6 4. Nf3 e6 5. e3 c5 6. Bxc4 Nc6 7. O-O a6 8. Nc3 Be7 9. Qe2 cxd4 10. Rd1 e5 11. exd4 exd4 12. Nxd4 Nxd4 13. Qe5 Qd6