I broke discipline yesterday and looked at Facebook for a while, lured there by Emil Sutovsky's statement about the Israeli Olympiad team on Twitter. Looking at Sutovsky's feed, I saw that he presented the following study by Hasek, with the comment:
Cute one from the Czechoslovak composer Hasek. White to play. The idea is clear - but how to make it work? Not obvious, and very aesthetically pleasing solution. Don't publish a solution, just leave a smile if you are sure you got it right.
Hasek, date unknown
White to play & draw
I saw the initial idea quickly, and then saw how it failed. I didn't figure it out on my own, I must confess, and needed a hint. Feel free to use a computer program on it, as Stockfish didn't help at all - the hint came from a commenter to the Facebook post, and then I had to figure out what he meant.
Warning: The title of the post may or may not be misleading.
Hints & solution below the fold in white font.
