This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.
Colle: 5.c3 Nbd7
The Colle System is a solid and flexible opening for White, characterized by the setup with d4, Nf3, e3, Bd3, and c3. After the moves 1. d4 d5 2. Nf3 Nf6 3. e3 e6 4. Bd3 c5 5. c3 Nbd7, Black aims to challenge White’s center and develop harmoniously.
Characteristic of 5...Nbd7: This move supports Black’s control over the central squares, especially e5, and prepares to reinforce the center or possibly develop the knight to b6 or c5 later. It is a flexible developing move that maintains tension in the center.
Attacking or Defensive: For White, the Colle System is generally a solid and somewhat restrained setup that focuses on a strong, cohesive center rather than immediate attacks. White plans a later e4 break to challenge Black’s center. For Black, 5...Nbd7 is a solid, somewhat defensive developing move that keeps options open and maintains central tension.
Center Control: Yes, this opening focuses on controlling the center. White builds a strong pawn chain with d4 and c3 and prepares to strike in the center with e4. Black contests the center with ...c5 and piece pressure, aiming to undermine White’s control.
You can also discover how top players used Colle: 5.c3 Nbd7 to leverage key strategies to secure victories in these classic matchups.