Recently I came across a very interesting puzzle - have a look.
Analysis board position (try to continue as white vs computer level 8)
White to move, and do the best possible (draw/win)
http://en.lichess.org/analysis/6k1/8/5P1P/8/ppp5/8/2K5/8_w_-_-
FEN:
6k1/8/5P1P/8/ppp5/8/2K5/8 w - - 0 1
Puzzle clue: A type of Zugzwang
Analysis board position (try to continue as white vs computer level 8)
White to move, and do the best possible (draw/win)
http://en.lichess.org/analysis/6k1/8/5P1P/8/ppp5/8/2K5/8_w_-_-
FEN:
6k1/8/5P1P/8/ppp5/8/2K5/8 w - - 0 1
Puzzle clue: A type of Zugzwang