Killer Sudoku, Difficulty 10

Puzzle 599 Jul 16 July 2009
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Difficulty 10/10 Average solving time 43 min
Puzzle 601 Jul 17 July 2009
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Difficulty 10/10 Average solving time 40 min
Puzzle 602 Jul 17 July 2009
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Difficulty 10/10 Average solving time 39 min
Puzzle 605 Jul 18 July 2009
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Difficulty 10/10 Average solving time 42 min
Puzzle 607 Jul 19 July 2009
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Difficulty 10/10 Average solving time 31 min
Puzzle 608 Jul 19 July 2009
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Difficulty 10/10 Average solving time 41 min
Puzzle 611 Jul 20 July 2009
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Difficulty 10/10 Average solving time 41 min
Puzzle 613 Jul 21 July 2009
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Difficulty 10/10 Average solving time 41 min
Puzzle 614 Jul 21 July 2009
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Difficulty 10/10 Average solving time 38 min
Puzzle 617 Jul 22 July 2009
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Difficulty 10/10 Average solving time 29 min
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