Killer Sudoku Puzzles by Krazydad
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Killer Sudoku Puzzle for Syndication : Puzzles for newspapers, magazines, websites .. From Yoogi Puzzle Syndicate
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Killer Sudoku Puzzles - Samunamupure : Free killer sudoku : sum sudoku by Yoogi.com
Puzzle#60: 258 Sum Sudoku
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Killer Sudoku | Sarah Rubin Books
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Sudoku Mania: Quad Sum Sudoku 2013 - 1
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