Breakthrough

The position looks dead even, but if White were to move then he can produce a win by deflecting the opposing pawns. This position was set-up to illustrate the technique.

White plays 1. b6, ab 2. c6, bc 3. a6 and the A pawn will promote in two moves. Of course, it could also go 1. b6, cb 2. a6, ba 3. c6. In both cases, the black king is too far to catch up to the pawn. King position is important in this situation and so does the position of the pawn phalanx. The closer the pawn phalanx is to the queening square, the greater the chance for a pawn promotion.