Chess Board
[ECO code D06]
TRANSPOSITION
QGD. MARSHALL DEF. to GRUNFELD DEFENCE
White developed his queen's knight to QB3(c3), a rare move giving the initiative back to Black.
Black usually transposes into the Grünfeld Defence by pushing his King's Knight's Pawn out to KKt3(g6), intending an eventual KB-fianchetto that will attack White's weaker a1-h8 diagonal. B-Alt.
    White  Black    Transp.White Black
 1. P-Q4   P-Q4     (1. P-Q4   Kt-KB3)
 2. P-QB4  Kt-KB3   (2. P-QB4  P-KKt3)
 3. Kt-QB3 P-KKt3   (3. Kt-QB3 P-Q4  )
Continue: Transpose or Undo or Jump or Clear