To brush up my confidence here a few other examples of simple pawn endings misplayed by the masters. Can you do it better?
diagram 1 Antsigin - N. Zhuravliov USSR 1952
White to move.
White resigned here in drawn position!
diagram 2 Berger - Mason Breslau 1889
White to move
White played here 1. Ke4?? and lost the drawn position
diagram 3 I. Rogers - E. Levi Canberra 1996
Black to move.
Black played here 1. ... b5?? and lost the drawn game.
6 hours ago