Chess Board
[ECO code C68]
RUY LOPEZ - Morphy Def.
Exchange Var. - Keres Variation
White develops his Queen's Bishop to K3(e3) so as to castle long (ie. on the queen's-side).
Black castles long to bring his Queen's Rook to the open d-file, and retains equality of position.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	P-Q4   PxP
 2. Kt-KB3 Kt-QB3    7.	QxP    QxQ
 3. B-Kt5  P-QR3     8.	KtxQ   B-Q2
 4. BxKt!? QPxB	     9.	B-K3   0-0-0
 5. Kt-B3  P-B3
Example ends: Undo or Jump or Clear