For White· 19 lines

Beat the French: Tarrasch - Open System (3...c5 4.exd5: 4...exd5, 4...Qxd5)

Let's learn the Open System! Black has two tries here: 4...exd5 and 4...Qxd5. We have a clear plan against each one. Let's begin with 1.e4.

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Main line

Scroll the moves: the board follows.

Key lines

The free lines of this chapter, each one trainable move by move.

  1. Main Line: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 Nce4 11. Nfd4 O-O 12. Nf5 Re8 13. Nxe7+ Qxe7 14. h3
    Main Line

    … 11... O-O 12. Nf5 Re8 13. Nxe7+ Qxe7 14. h3

  2. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 7. O-O Nc6 8. Nb3 Nf6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Bc5 12. c3
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 7. O-O Nc6 8. Nb3 Nf6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Bc5 12. c3

  3. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 7. O-O Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bb3 Bd6 12. h3
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd7 7. O-O Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bb3 Bd6 12. h3

  4. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nf6 8. Nb3 Nc6 9. Qe2 Be7 10. Rd1
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nf6 8. Nb3 Nc6 9. Qe2 Be7 10. Rd1

  5. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 e5 9. Re1 Bg4 10. Nxe5 Bxd1 11. Nxc6+ Be7 12. Nxd8 Rxd8 13. Rxd1 a6 14. Rxd4 Nf6 15. Rxd8+ Bxd8 16. Nc5
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 e5 9. Re1 Bg4 10. Nxe5 Bxd1 11. Nxc6+ Be7 12. Nxd8 Rxd8 13. Rxd1 a6 14. Rxd4 Nf6 15. Rxd8+ Bxd8 16. Nc5

  6. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bb3 Bd6 12. h3
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 a6 9. Nbxd4 Nxd4 10. Nxd4 Qc7 11. Bb3 Bd6 12. h3

  7. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 Nf6 9. Qe2 Be7 10. Rd1
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd8 7. O-O Nc6 8. Nb3 Nf6 9. Qe2 Be7 10. Rd1

  8. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nc6 8. Ne4 Qd8 9. c3 dxc3 10. Qc2 Nf6 11. Nxf6+ Qxf6 12. Bg5
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nc6 8. Ne4 Qd8 9. c3 dxc3 10. Qc2 Nf6 11. Nxf6+ Qxf6 12. Bg5

  9. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Be7 12. c3
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Be7 12. c3

  10. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Qc7 12. Bf1
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 a6 11. Re1 Qc7 12. Bf1

  11. 4...Qxd5: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 Be7 11. c3 O-O 12. Qf3
    4...Qxd5

    … 4. exd5 Qxd5 5. Ngf3 cxd4 6. Bc4 Qd6 7. O-O Nf6 8. Nb3 Nc6 9. Nbxd4 Nxd4 10. Nxd4 Be7 11. c3 O-O 12. Qf3

  12. 5...Nc6: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. O-O Ne7 9. Nb3 Bd6 10. Re1 O-O 11. Bd3 h6 12. h3
    5...Nc6

    … 5. Ngf3 Nc6 6. Bb5 Bd6 7. dxc5 Bxc5 8. O-O Ne7 9. Nb3 Bd6 10. Re1 O-O 11. Bd3 h6 12. h3

  13. 5...Nc6: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nc6 6. Bb5 Nf6 7. O-O Be7 8. dxc5 Bxc5 9. Re1+ Be6 10. Nb3 Bb6 11. Nbd4
    5...Nc6

    … 5. Ngf3 Nc6 6. Bb5 Nf6 7. O-O Be7 8. dxc5 Bxc5 9. Re1+ Be6 10. Nb3 Bb6 11. Nbd4

  14. 6...Nc6: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 Bxc5 9. Re1+ Be6 10. Nb3 Bb6 11. Nbd4
    6...Nc6

    … 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 Bxc5 9. Re1+ Be6 10. Nb3 Bb6 11. Nbd4

  15. 6...Nc6: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 O-O 9. Nb3 a6 10. Bxc6 bxc6 11. Ne5 Bb7 12. Bg5
    6...Nc6

    … 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 O-O 9. Nb3 a6 10. Bxc6 bxc6 11. Ne5 Bb7 12. Bg5

  16. 6...Nc6: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 O-O 9. Nb3 Bg4 10. Be3
    6...Nc6

    … 6. Bb5+ Nc6 7. O-O Be7 8. dxc5 O-O 9. Nb3 Bg4 10. Be3

  17. 10...O-O: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 O-O 11. Nxc5 Bxc5 12. c3
    10...O-O

    … 10. Nb3 O-O 11. Nxc5 Bxc5 12. c3

  18. 10...Nxb3: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 Nxb3 11. axb3 O-O 12. Be3
    10...Nxb3

    … 10. Nb3 Nxb3 11. axb3 O-O 12. Be3

  19. 11...Qd7: position after 1. e4 e6 2. d4 d5 3. Nd2 c5 4. exd5 exd5 5. Ngf3 Nf6 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. O-O Be7 9. dxc5 Nxc5 10. Nb3 Nce4 11. Nfd4 Qd7 12. f3
    11...Qd7

    … 11. Nfd4 Qd7 12. f3

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