Colle System

Colle System is a named opening in the book. The main stored line runs Nf3, c5, e3, g6, d4, Bg7, dxc5, Qa5+. The book has 3 lines under this name, across ECO codes A04 to A40.

3 lines in the book · ECO A04 to A40 · 3 tagged puzzles in the source database

Play the main line

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h

Colle System: Rhamphorhynchus Variation

Play the next move in the line.

  1. Nf3
  2. c5
  3. e3
  4. g6
  5. d4
  6. Bg7
  7. dxc5
  8. Qa5+

Move by move

  1. White knight moves from g1 to f3.
  2. Black pawn moves from c7 to c5.
  3. White pawn moves from e2 to e3.
  4. Black pawn moves from g7 to g6.
  5. White pawn moves from d2 to d4.
  6. Black bishop moves from f8 to g7.
  7. White pawn captures on c5.
  8. Black queen moves from d8 to a5.

Variations

Rhamphorhynchus Variation1 lines · A04Pterodactyl Variation1 lines · A40Siroccopteryx Variation1 lines · A40

Puzzles from this opening

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h

Puzzle rating 823 · played 230 times in the source set

Find the move.

Solved in a row: 0. The next puzzle stays near rating 1,400.

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