Sudoku

"So there's a 5 there, and a 5 there, so there must be a 5 here and that means that because there's a 2 there and a 2 down here, then there must be a 2 across there. There's a 7 here and a 7 there so the 7 in this group can be here, here or here, so I need to figure out what goes there and there and across there, which means that if there's a 9 here and here and a 7 down there, then this box can either be a 6, a 8 or a 1 ... "

I looked up at my alarm clock to find that it's way past my bedtime.

[learn to play here. time well wasted. you'll thank me later]