Chess Board
[ECO code A00]
TRANSPOSITION
SARAGOSSA OPENING to EXCHANGE SLAV DEF.
White's QB3(c3) pawn completed an early exchange on Q4(d4).
Black transposes into a position usually seen via the Exchange Variation of the QGD. Slav Defence by advancing his Queen's Pawn to form a fixed centre of pawns mutually blocked post-exchange.
    White  Black    Transp.White Black
 1. P-QB3  P-QB4    (1.	P-Q4   P-Q4 )
 2. P-Q4   PxP	    (2.	P-QB4  P-QB3)
 3. PxP	   P-Q4	    (3.	PxP    PxP  )
Continue: Transpose or Undo or Jump or Clear