Chess Board
[ECO code D36]
QUEEN'S GAMBIT DECL. - Exchange Var.
Positional Line
White developed his KKt early for bishop support (enabling P-K4) but risked an inability to take control of his QKt1-KR7 (b1-h7) diagonal.
Black's King's Knight's Pawn (best) to KKt3(g6) takes control of KB4(f5), for 8.P-K3..B-KB4, 9.B-Q3..BxB, 10.QxB..QKt-Q2 equality. B-Alt.
    White  Black	White  Black
 1. P-Q4   P-Q4	     5. B-Kt5  P-B3
 2. P-QB4  P-K3	     6.	Q-B2   B-K2
 3. Kt-QB3 Kt-KB3    7.	Kt-B3  P-KKt3
 4. PxP    PxP
Example ends: Undo or Jump or Clear