Chess Board
[ECO code C45]
Classical Variation

White castles short (ie. on the K-side) to bring his King's Rook towards the open king's file (-e-).
Black develops his Queen's Bishop to Q2(d7), and can now castle on either side of the board.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	P-QB3  KKt-K2
 2. Kt-KB3 Kt-QB3    7.	B-QB4  Kt-K4
 3. P-Q4   PxP	     8.	B-K2   P-Q4
 4. KtxP   B-B4	     9.	Kt-Q2  P-B3
 5. B-K3   Q-B3	    10.	0-0    B-Q2

Example ends: Undo or Jump or Clear