g-pawn Trap

White's King has made great progress

It appears the g-pawn is ready to advance and queen, yet there is a trap with Black's King on h8, after 1.g6 it's stalemate. 

  The winning idea is for White to repeat his steps, to get his King on h6, preventing Black's King from using the h-file with stalemating possibilities, thus foring it out of the corner.

 Play continues: 1.Kg6 Kg8  2.Kh6 Kh8  3.g6 Kg8  4.g7 Kf7 (the squeeze) 5.Kh7 Kf6  6.g8/Q  and White wins.