Chess Board
[ECO code C41]
PHILIDOR'S DEFENCE
Steinitz Variation
White set his queen's pawn on Q3(d3) defending his KP and freeing his QB for use.
Black castles short (ie. K-side), bringing his King's Rook into rapid play improving his KBP's defence.
	White	Black
 1.	P-K4	P-K4
 2.	Kt-KB3	P-Q3
 3.	B-B4	B-K2
 4.	P-B3	Kt-KB3
 5.	P-Q3    0-0
Example ends: Undo or Jump or Clear