As White

Colle System · Intermediate

An easy system to learn: you always develop the same way (e3, Bd3, Nbd2, castling) and then open the centre with e4.

Train this opening

Lines

1. Colle System · 5.c3 cxd4

   1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 cxd4 6.exd4 Nc6 7.O-O

2. Colle System · 4.Bd3 Bd6

   1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 Bd6 5.O-O O-O 6.Nbd2 c5 7.dxc5 Bxc5 8.c4

3. 4.Be2 Bxf3

   1.d4 d5 2.Nf3 Nf6 3.e3 Bg4 4.Be2 Bxf3 5.Bxf3 e6 6.O-O Bd6 7.g3 O-O 8.Nc3

4. Colle System · 5.c3 Nc6

   1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 Nc6 6.Nbd2 Bd6 7.dxc5 Bxc5 8.b4 Bd6 9.b5

5. Colle System · 4.Bd3 Be7

   1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 Be7 5.O-O O-O 6.Nbd2 c5 7.dxc5 Bxc5 8.c4 Nc6 9.b3

6. 5.O-O c5

   1.d4 d5 2.Nf3 Nf6 3.e3 Bg4 4.Be2 e6 5.O-O c5 6.c3 Nc6 7.h3 Bh5 8.Nbd2 Bd6 9.dxc5

7. 4.Be2 Nc6

   1.d4 d5 2.Nf3 Nf6 3.e3 Bg4 4.Be2 Nc6 5.O-O e6 6.Nbd2 Bd6 7.h3 Bh5 8.b3 O-O 9.Bb2

8. Colle System · 5.c3 c4

   1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3 c4 6.Bc2 Nc6 7.Nbd2 Bd6 8.e4

9. 5.O-O Bd6

   1.d4 d5 2.Nf3 Nf6 3.e3 Bg4 4.Be2 e6 5.O-O Bd6 6.Nbd2 O-O 7.h3 Bh5 8.c4