Chess Board
[ECO code A02]
TRANSPSITION
BIRD'S OPENING to SICILIAN DEF. (Philidor Var.)
Black advanced his Queen's Bishop's Pawn to QB4(c5) to control White's Q4(d4) square, and plans 2..P-Q3 to retain control of his K4(e5).
White transposes into the Philidor Variation of the Sicilian Defence by advancing his King's Pawn to the centre.
    White  Black    Transp.White Black
 1. P-KB4  P-QB4    (1.	P-K4   P-QB4)
 2. P-K4	    (2.	P-KB4	    )
Continue: Transpose or Undo or Jump or Clear