Chess Board
[ECO code C42] Move Move Here
PETROFF'S DEFENCE
Marshall Attack
Black advanced his KBPawn to KB4(f5) in support of his knight and bishop.
White develops his Queen's Knight to QB3(c3), offers a Kt-swap and avoids a 10.R-K1 trap. W-Alt.
    White  Black	White  Black
 1. P-K4   P-K4	     6.	B-Q3   B-Q3
 2. Kt-KB3 Kt-KB3    7.	0-0    B-KKt5
 3. KtxP   P-Q3	     8.	P-B4   0-0
 4. Kt-KB3 KtxP	     9.	PxP    P-KB4
 5. P-Q4   P-Q4	    10.	Kt-B3
BLACK to Move or Undo or Jump or Clear
 
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