Chess Board
[ECO code B20]
TRANSPOSITION
SICILIAN CENTRE to FRANCO-BENONI DEFENCE

White's QPawn advanced to challenge Black's QBP.
Black sometimes declines the immediate QP to avoid the Morra Gambit but sets his King's Pawn to free his queen and KB (now supporting his QBP). White may transpose again into a Sicilian Paulson/Schev. or continue the Franco-Benoni in reply. B-Alt.
    White Black     Alternate Route
 1. P-K4  P-QB4     (1.	P-K4  P-K3 )
 2. P-Q4  P-K3	    (2.	P-Q4  P-QB4)

Continue: Transpose or Undo or Jump or Clear