Chess Board
[ECO code B02]
TRANSPOSITION
ALEKHINE DEF. (Krejcik V.) to BISHOP OPG. (Berlin)
White developed his KB to QB4(c4) contesting for control of Q5(d5) and planning 2..KtxP, 3.BxP+ch, a line tending with correct play to favour Black.
Black transposes into the main (Berlin Defence) of the Bishop's Opg. by advancing his King's Pawn to the centre. Solid but inferior to 2..KtxP as it gives the initiative (ie. more choices) back to White. B-Alt.
    White  Black    Transp.White Black
 1. P-K4   Kt-KB3   (1.	P-K4   P-K4  )
 2. B-B4?! P-K4?!   (2.	B-B4   Kt-KB3)
Continue: Transpose or Undo or Jump or Clear