A Harvey Mudd College senior, Palmer Mebane, has won the 2011 World Puzzle Championship in Hungary, which the school says makes him the first American winner in 12 years. He beat a seven-time champ from Germany. Mudd’s writeup is here.
Mebane doesn’t do crosswords but rather logic puzzles. You can find a bunch on his blog. I took a look at a couple and my brain almost exploded. Thankfully I averted my eyes in time.