There were many good puzzles actually, but these two jump to the top of my list of top ten sudoku variations I've solved anywhere.

里面的很多题目都很出色，但是有两道题算是我做过的变型题里能排进前十的了。

youdao

""Lost" plays to our taste for mysteries and puzzles in a really good way."

VOA: standard.2010.05.25

Former Yankees pitcher (and Stanford grad) Mike Mussina got so good at them that he appeared in "Wordplay, " a 2006 documentary about crossword puzzles.

WSJ: Mets Find Answer