Ending #6: A Pawn vs Bishop ending.
Nov 7, 2015, 6:26 AM 3
White wins in this position against a Dark-Squared Bishop:-
And Bishop Cannot be brought to bear on a7 so as to stop the pawn.
The importance of first moving to queen is evident. If King moves, or the Pawn checks at the outset, the game is drawn; in one case the King can reach b7 in time, and in the other the Pawn can be intercepted by the Bishop. The sacrifice at move 3 limits the action of this latter piece, causing what may be temed obstruction, and is necessary in order to win. This ending is a model of its kind.