Chess Board
[ECO code A56] Move Move Here
MODERN BENONI DEFENCE
Petrosyan System (aka. Czech Benoni)
Black's queen's pawn out to Q3(d6) supported his QBP+QP and freed his QB.
White develops his King's Knight to KB3(f3) for a position occurring more via the Old Benoni. W-Alt.
     White   Black
 1.  P-Q4    Kt-KB3
 2.  P-QB4   P-B4
 3.  P-Q5    P-K4
 4.  Kt-QB3  P-Q3
 5.  Kt-B3	  Alt. Old Ben. route
BLACK to Move or Undo or Jump or Clear
 
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