Chess Board
[ECO code B06]
MODERN DEFENCE
White's QB3(c3) Pawn completes a pawn exchange on Q4(d4), removing Black's newly doubled QP, and vacates the square enabling 9.Kt-B3.
Black's Queen's Knight set on QB3(c6) pressures Q5+K4(d4+e5), for a game with equal chances.
    White  Black	White  Black
 1. P-K4   P-KKt3    6.	Kt-KB3 P-B4!?
 2. P-Q4   B-Kt2     7.	0-0    PxP
 3. P-QB3  P-Q3	     8.	PxP    Kt-B3
 4. P-KB4  Kt-KB3
 5. B-Q3   0-0

Example ends: Undo or Jump or Clear