Board Position
A quiet White Queen's Pawn system (by White's move 6, seen right), in which the Belgian master Edgard Colle (1897-1932) specialised to score many successes in the 1920s. Board Position
White plans to close the queen's side with P-QB3 and develop the king's side, then advance his KPawn for central play to open the diagonal for his KB, and then attack on the king's side.
White's early 3.P-K3 position (move 3w, left diag.) can be arrived at via either of two routes depending on Black's opening reply (1..P-Q4 or 1..Kt-KB3), but most of White's first six moves are interchangeable. There is no hard and fast rule for Black's defence although experience has shown that his QKt is best developed at Q2(d7). Seen against several defences (eg. vs. Queen's Indian) but rarely used by Black.
or Clear
see (QPG:) 1 d4 d5 2 Nf3 Nf6
3 e3 c5 4 Nbd2 Nbd7 5 c3 e6 6 Bd3
Bd6 7 0-0 0-0 8 e4 etc.
(Ind.D:) 1 d4 Nf6 2 Nf3
e6 3 Nbd2 d5 4 e3 Nbd7 5 Bd3 c5 6 c3