Chess Board
[ECO code C42] Move Move Move Here Move Here
PETROFF DEFENCE - Damiano Var.
Side Variation

Black advanced his QP to defend his knight and free his QB, perhaps still unaware of the trap.
White pushes his Queen's Pawn out to Q3(d3), frees his own QB and doubles the attack on Black's pinned centre Kt, and White is now sure to win a P.
    White  Black	White  Black
 1. P-K4   P-K4	     5.	P-Q3
 2. Kt-KB3 Kt-KB3
 3. KtxP   KtxP?!
 4. Q-K2   P-Q4

BLACK to Move or Undo or Jump or Clear
 
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