Killer Sudoku, Difficulty 10

Puzzle 402 May 12 May 2009
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Difficulty 10/10 Average solving time 42 min
Puzzle 405 May 13 May 2009
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Difficulty 10/10 Average solving time 35 min
Puzzle 408 May 14 May 2009
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Difficulty 10/10 Average solving time 38 min
Puzzle 411 May 15 May 2009
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Difficulty 10/10 Average solving time 53 min
Puzzle 416 May 16 May 2009
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Difficulty 10/10 Average solving time 36 min
Puzzle 419 May 17 May 2009
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Difficulty 10/10 Average solving time 49 min
Puzzle 422 May 18 May 2009
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Difficulty 10/10 Average solving time 37 min
Puzzle 425 May 19 May 2009
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Difficulty 10/10 Average solving time 34 min
Puzzle 427 May 20 May 2009
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Difficulty 10/10 Average solving time 40 min
Puzzle 428 May 20 May 2009
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Difficulty 10/10 Average solving time 36 min
Daily Killer Sudoku