Opening summary

Opening moves: 1.d4 d5 2.Nf3 Nf6 3.e3

Update the move sequence above to match this opening.

Colle System

Setup moves: 1.d4 d5 2.Nf3 Nf6 3.e3 e6 4.Bd3 c5 5.c3

The Colle System is a classical, easy-to-learn repertoire choice. White builds a solid pawn chain on dark squares and aims for the thematic e4 break, often followed by a kingside assault with Ne5, f4, and Qf3.

  • Low-theory approach ideal for club players.
  • Leads to powerful king-side attacks when timed with e4 and f4.
  • Flexible move orders can transpose to Colle-Zukertort setups with b3 and Bb2.
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