Chess Board
[ECO code E12] Move Move Move Here Move Here
QUEEN'S INDIAN DEFENCE
Petrosian Variation (alt. route)

Black developed an "Indian" queen's bishop on QKt2(b7) to dominate the long light centre diagonal.
White's QRP to QR3(a3) push avoids a ..B-QKt5 pin and switches into the Petrosian line. W-Alt.
     White   Black
 1.  P-Q4    Kt-KB3
 2.  P-QB4   P-K3
 3.  Kt-KB3  P-QKt3
 4.  Kt-B3   B-Kt2
 5.  P-QR3	   Main 5W,4W route

BLACK to Move or Undo or Jump or Clear
 
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