Chessmate

Colle-Zukertort System · White

Classical c5, Central Exchange (D05)

Claim space with d4 and open the queen's bishop.

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Practice this line from memory on the free trainer

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Colle-Zukertort System · BlackDifficulty 2/3

Black repertoire · ECO A46–D05

Sample line with full explanations: Classical c5, Support Nf5 with g6.

All lines in this course

ECO A46–D05

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

Train this course
  1. Classical c5, Central ExchangeSample

    1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. b3 cxd4 6. exd4 Bd6 7. Bb2 O-O 8. O-O b6 9. Qe2 Nc6 10. a3 Bb7 11. Nbd2 Ne7 12. Ne5

  2. b6 and c5, Build toward Ne5

    1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5. b3 c5 6. Bb2 Nc6 7. O-O d5 8. Nbd2 Bd6 9. a3 cxd4 10. exd4 O-O 11. Re1 Ne7 12. Ne5

  3. Bd6 Setup, Qh3 Battery

    1. d4 Nf6 2. Nf3 e6 3. e3 d5 4. Bd3 Bd6 5. b3 O-O 6. O-O b6 7. Bb2 Bb7 8. Nbd2 Nbd7 9. Ne5 c5 10. f4 Rc8 11. Qf3 Rc7 12. Qh3

  4. Bg4 Pin, Queen Recapture

    1. Nf3 Nf6 2. d4 d5 3. e3 c6 4. Bd3 Bg4 5. Nbd2 Nbd7 6. h3 Bh5 7. Be2 e6 8. b3 Bd6 9. Bb2 O-O 10. O-O Qe7 11. Ne5 Bxe2 12. Qxe2

  5. Immediate c5, Bb5+ Check

    1. d4 d5 2. Nf3 c5 3. e3 e6 4. b3 Nf6 5. Bb2 Nbd7 6. Nbd2 b6 7. Bd3 Bb7 8. O-O Be7 9. Ne5 Nxe5 10. dxe5 Ne4 11. Nxe4 dxe4 12. Bb5+

  6. Ne5 Exchange, Support with f4

    1. d4 Nf6 2. Nf3 d5 3. e3 e6 4. Bd3 b6 5. Nbd2 Bb7 6. b3 c5 7. Bb2 Nc6 8. O-O Be7 9. Ne5 O-O 10. a3 Nxe5 11. dxe5 Nd7 12. f4