Chess Board
[ECO code D02]
TRANSPOSITION
QP. GAME to CATALAN OPG. (Closed Var.)
Black (like White) castled for rapid development.
White adopts the Closed Catalan (but inviting an Open line) by advancing a delayed QBPawn gambit.
    White  Black    Transp.White Black
 1. P-Q4   P-Q4	    (1.	P-Q4   Kt-KB3)
 2. Kt-KB3 P-K3	    (2.	P-QB4  P-K3  )
 3. P-KKt3 Kt-KB3   (3.	P-KKt3 P-Q4  )
 4. B-Kt2  B-K2	    (4.	B-Kt2  B-K2  )
 5. 0-0	   0-0	    (5.	Kt-KB3 0-0   )
 6. P-B4	    (6.	0-0
Continue: Transpose or Undo or Jump or Clear