Chess Board
[ECO code C53]
GIUOCO PIANO (Close Line)
Strongpoint Def. - (The) Side Variation

Black (rarely) decides to exchange by his KPawn removing White's QP on Q4(d4). B-Alt.
White removes Black's now-QP with his QB3P (and if 7..QxP then 8.R-K1 traps the queen by a pin).
    White  Black	White  Black
 1. P-K4   P-K4	     6.	0-0    PxP
 2. Kt-KB3 Kt-QB3    7.	PxP
 3. B-B4   B-B4
 4. P-B3   B-Kt3
 5. P-Q4   Q-K2

Example ends: Undo or Jump or Clear