Chess Board
[ECO code A40]
QUEEN'S PAWN TRANSPOSITION
(to) ENGLISH DEF. to QUEEN'S INDIAN (Sämisch) DEF.
White advanced his QBPawn to QB4(c4), planning 3.P-Q5.
Black transposes into the Sämish Defence (a Queen's Indian entry route) by developing his King's Knight to KB3(f6) to deter 3.P-K4 and discourage 3.P-Q5. B-Alt.
    White  Black    Transp.White Black
 1. P-Q4   P-QKt3   (1.	P-Q4  Kt-KB3)
 2. P-QB4  Kt-KB3   (2.	P-QB4 P-QKt3)
Continue: Transpose or Undo or Jump or Clear