Killer sudoku

Sinopse

"With murder and mayhem everywhere she turns, Sudoku maven Liza Kelly knows how the numbers feel--boxed in. Liza is looking forward to the West Coast Sudoku Summit. But from the onset, contestants are being eliminated one by one, and not in the way that she planned--they're dropping dead. With more at stake here than just prize money, Liza must figure out the murderer's pattern, or she'll be the next one down"--Publisher's web site.