Chess Board
[ECO code A17]
TRANSPOSITION
ANGLO-INDIAN to QUEEN'S PAWN INDIAN DEF.
Black's KP out to K3(e6) kept up the contest for his Q4(d5) and freed his KB for a potential ..B-QKt5 pin.
White's QPawn to the vacant centre enables a likely 4.B-KKt5 pin. Often reached by transposition, Black may transpose on into a QGD Orthodox by 3..P-Q4 or the Nimzo-Indian by 3..B-Kt5. W-Alt.
    White  Black    Transp.White Black
 1. P-QB4  Kt-KB3   (1.	P-Q4    Kt-KB3)
 2. Kt-QB3 P-K3	    (2.	P-QB4   P-K3  )
 3. P-Q4	    (3.	Kt-QB3	      )
Continue: Transpose or Undo or Jump or Clear