With bishops on opposite colours, the defender can often draw even two pawns down. Your bishop controls the squares of its colour, and your opponent's bishop can never challenge it there. Put your bishop where it stops the pawns on its colour, and your king in front of them on the other colour. If the pawns get too far, give up your bishop for both of them.
Every move is checked with an endgame tablebase, which knows the exact result of every position with up to seven pieces. The computer defends perfectly, and if a move throws the result away, the trainer stops and shows you a better one.
