Chess Board
[ECO code C91]
RUY LOPEZ - Close Morphy Defence
Bogoljubow Variation
White's QBPawn on QB3(c3) exchanges, removing Black's newly doubled QP on Q4(d4).
Black's QB3(c6) Knight moves to QR4(a5) to attack White's light bishop, with equality.
    White  Black     6.	R-K1   P-QKt4
 1. P-K4   P-K4      7.	B-Kt3  P-Q3
 2. Kt-KB3 Kt-QB3    8.	P-B3   0-0
 3. B-Kt5  P-QR3     9.	P-Q4   B-Kt5
 4. B-R4   Kt-B3    10.	B-K3   PxP
 5. 0-0    B-K2	    11.	PxP    Kt-QR5
Example ends: Undo or Jump or Clear