Chess Board
[ECO code C67]
RUY LOPEZ - Open Berlin Def.
Rosenthal Variation
White develops his Queen's Knight to QB3(c3) to resume control of his K4(e4).
Black pushes his King's Pawn onward to K5(e4) to attack White's king's-side knight, with equality.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	BxKt   QPxB
 2. Kt-KB3 Kt-QB3    7.	R-K1   Kt-B3
 3. B-Kt5  Kt-B3     8.	Kt-B3  P-K5!
 4. 0-0    KtxP
 5. P-Q4   P-QR3
Example ends: Undo or Jump or Clear