Chess Board
[ECO code D13]
SLAV DEFENCE - Exchange Var.
Side Variation
Black developed his queen's bishop to KB4(f5) too early, hoping to prevent P-K4.
White's Queen develops to QKt3(b3) targeting Black's QKtP+QP to win a pawn by 6...Q-Kt3, 7.KtxP..KtxKt, 8.QxKt - an early attack likely to succeed.
    White  Black	White  Black
 1. P-Q4   P-Q4	     5.	Kt-B3  B-B4?!
 2. P-QB4  P-QB3     6.	Q-Kt3!
 3. Kt-KB3 Kt-KB3
 4. PxP	   PxP
Example ends: Undo or Jump or Clear