Chess Board
[ECO code C65]
RUY LOPEZ - Berlin Defence
Side Variation
White develops his Queen, removing Black's queen's pawn on Q4(d4).
Black's Knight under attack on KB3(f6) moves to Q4(d5), but 8.B-B4..Kt-Kt2, 9.B-KB4 will give White advantageous command of the centre.
    White  Black	White  Black
 1. P-K4   P-K4	    5.	KtxP   PxKt
 2. Kt-KB3 Kt-QB3   6.	P-K5   P-B3
 3. B-Kt5  Kt-B3    7.	QxP    Kt-Q4
 4. P-Q4   KtxQP?!
Example ends: Undo or Jump or Clear