As Christmas approaches, a Devilish problem

This is from the old magazine, "Chess" edited by the late great B.H. Wood. From Hugh Courtney's Christmas Quiz in the November 1975 edition, to be precise.

The story is that a certain Faustus bargained his soul to the gentleman with the horns and pointed stick in return for certain favours if (and only if) at the end of the term of favours the fellow known for his sulpurous reek could solve a four-move chess problem of the Doctor's own devising. "The devil made the first three moves on the board accurately and without a moment's hesitation; but the fourth move (obvious to all the bystanders) seemed to baffle him, and, with a diabolical oath, he disappeared in a huff and puff of smoke leaving behind him the inevitable odour of brimstone". It is for you to solve: firstly what is the solution, and secondly why did this four-mover defeat the Devil (White to play)?

Joy to you all this and every season.

@SuryaVS it is indeed.