I can't figure it out but I'm positive that 12 year old me would have lost from this position.
Fools mate in an inter-school tournament, the only player on my team to lose his game and thus the only one who didn't get ice cream on the drive home. Still hurts.
EDIT: actually it isn't that hard! I really could cock it up from that position.
In Dutch high level youth chess it's usual for there to be a target score for the entire team based on the strength of the opposition that day (say the goal of that day is to score at least 6/10), and then _the entire team_ gets icecream or not depending.
Nah, I was 12. That's old enough to learn about failure in a fairly direct way. It was a good lesson and I'm glad my teacher stuck to it/
Sure, if I'd put up a good fight and lost because he was better, perhaps I'd be a bit sadder, but I really failed. (I still remember it clearly: I was distracted by my opponent's disgusting acne. I also had a turns-out-justified case of impostor syndrome about my place on the team).
SPOILER:
Move WhiteRook (G6>C6) thereby giving a check to black King with Knight at (H7). It also blocks WhiteKnight (A8)'s view of the Black King thereby freeing the BlackRook(B7>H7) to kill the WhiteKnight at H7
Pna'g lbh zbir gur cnja ng o2 be u2 ol whzcvat bire gur cvrprf va sebag bs gurz fvapr vg'q or gurve svefg zbir? Gur ortvaare ehyrf ba gur fvgr lbh yvaxrq qba'g zragvba jurgure guvf vf n yrtny zbir be abg, fb V'z abg fher.
No. Castling can only occur if the king has not moved. By convention, white's pieces start at the bottom of the depicted board - the first row. In this puzzle, the king is in the last row, which means it has moved at least 7 steps.
http://www.chess.com/blog/AaronGo/white-to-move-and-not-mate