Chess Board
[ECO code A20]
TRANSPOSITION
ENGLISH OPENING to BUDAPEST DEFENCE

White's QP advance attacked Black's K4(e5) pawn.
Black transposes into the Budapest Defence by developing his King's Knight to control the central white squares (d5/e4), leaving his KP en prise (ie. undefended). Also known as the Budapest Counter-Gambit for obvious reasons! B-Alt.
    White  Black    Transp.White Black
 1. P-QB4  P-K4     (1.	P-Q4   Kt-KB3)
 2. P-Q4   Kt-KB3   (2.	P-QB4  P-K4  )

Continue: Transpose or Undo or Jump or Clear