1.d4 — the closed and Indian games
Colle System
1.d4 d5 2.Nf3 Nf6 3.e3ECO D04–D05
A tidy, repeatable setup — d4, Nf3, e3, Bd3, c3, Nbd2, O-O — aiming for the central e4 break and a kingside attack. Easy to learn and hard to crack, ideal for a quiet, system-based repertoire.
Key ideas
- White builds the same harmonious setup against most Black replies, then plays for e3–e4.
- Once e4 opens the position the Bd3 and a knight lift target Black's king.
- The trade-off for simplicity is modest pressure — Black equalises comfortably with accurate play.
Who it suits
Players who want one dependable, low-theory setup with 1.d4 and a clear attacking plan.
Add it to your repertoire.
Drill the Colle System move by move against the board until it's second nature.
Open the trainer