Mark Dvoretsky, 1947 December 9 - 2016 September 24

It was reported today that Mark Dvoretsky has died. Rather than try to add anything about the man and his work, I will simply point the interested reader to Peter Dogger's obituary on Chess.com. A sad day for the chess world.

The article is worth reading on its human merits, but it also contains a problem worth considering on its own. (How could it be an article about Mark Dvoretsky without an instructive bit about the game of chess?) I've added a screen capture of the problem below. Look for that problem in the text of Dogger's column for the full solution. Pay particular attention to the alternate line 3...Kg6 and its solution.