1
One Step from Queening
White is lost: the black pawn queens next move and the white king is far too away to help. There is exactly one resource that secures an immediate draw.
★★
2
Last Chance in the Corner
Black has a bishop and a pawn about to promote; White has nothing left. Only one move turns a certain loss into an immediate draw.
★★
3
The Promoting Pawn
Black threatens to promote and mate next move. White has only one resource to save the game — find it.
★★
4
The Pawn That Can't Be Stopped
White is lost: the black pawn is about to promote and the white king is far too away to help. Still, there is exactly one move that saves half a point. White to play.
★★