Chess Board [ECO code A00]
TRANSPOSITION
VAN'T KRUYS OPG. to BIRD'S OPENING
Black developed his KKt to control White's K4(e4) and contest the centre by indirect means.
White transposes into a Positional Variation of the Bird Opening by advancing his King's Bishop's Pawn to KB4(f4) taking control of Black's K4(e5). W-Alt.
    White  Black    Transp.White Black
 1. P-K3   Kt-KB3   (1.	P-KB4  Kt-KB3)
 2. P-KB4	    (2.	P-K3	     )
Continue: Transpose or Undo or Jump or Clear