Chess Board
[ECO code B20]
SICILIAN TRANSPOSITION
CENTRE GAME to ORTHODOX VARIATION
White rejected (or delayed) the Morra Gambit and developed his KKt, attacking Black's doubled QP.
Black transposes into the Orthodox Sicilian by developing his Queen's Knight to defend his doubled QPawn, expecting White to play 4.P-QB3 (a delayed Morra Gambit) next. B-Alt.
    White  Black    Transp.White Black
 1. P-K4   P-QB4	  (1.)
 2. P-Q4?! PxP	    (2.	Kt-KB3 Kt-QB3)
 3. Kt-KB3 Kt-QB3   (3.	P-Q4   PxP   )
Continue: Transpose or Undo or Jump or Clear