Fundamentals (part 45)

Spanton (1976) - Clemens Bieg Pagel (1883)
Benidorm U2000 2016

White has just captured on h2 - who stands better?

*****
*****
*****
*****
*****
*****
*****
*****
*****
*****
White is winning thanks to being able to create a farside passed pawn.
53...f4
*****
*****
*****
*****
*****
54.b4
But not 54.exf4+?? Kxf4 55.Kg2 as Black wins with 55...Ke3 (55...e3 also wins) etc. If 55.b4 then 55...e3 56.Kg2 Ke4 57.Kf1 Kxd4.
54...f3
Or 54...fxe3 55.Kg2 Kf4 56.a5.
55.a5 bxa5 56.bxa5 1-0