Chess Board
[ECO code A43]
TRANSPOSITION
OLD BENONI to SYMMETRICAL Q.G.D.
White advanced his own QBPawn to QB4(c4), ignoring Black's offer of a sacrificial QBP.
Black develops his Queen's Pawn to the centre, transposing from the Old Benoni into the Symmetrical Variation of a Queen's Gambit Declined opening. B-Alt.
    White  Black    Transp.White Black
 1. P-Q4   P-QB4    (1.	P-Q4   P-Q4  )
 2. P-QB4  P-Q4     (2.	P-QB4  P-QB4 )
Continue: Transpose or Undo or Jump or Clear