Jonathan Mestel celebrates his 63rd birthday today.

From Wikipedia:

“Andrew Jonathan Mestel (born 13 March 1957 in Cambridge, England) is Professor of Applied Mathematics at Imperial College London. He worked on magnetohydrodynamics and biological fluid dynamics. He obtained his Ph.D. with the thesis “Magnetic Levitation of Liquid Metals” at University of Cambridge.

“A distinguished chess player, he was the first person to be awarded chess Grandmaster titles by FIDE in both over-the-board play and problem solving. He has also represented England at contract bridge.”

This week’s puzzle is taken from the game Mestel-Renman, which won the brilliancy prize in the 1980 Chess Olympiad.

What should White have played in this position?