Killer Sudoku, Difficulty 10

Puzzle 620 Jul 23 July 2009
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Difficulty 10/10 Average solving time 39 min
Puzzle 623 Jul 24 July 2009
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Difficulty 10/10 Average solving time 45 min
Puzzle 625 Jul 25 July 2009
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Difficulty 10/10 Average solving time 32 min
Puzzle 626 Jul 25 July 2009
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Difficulty 10/10 Average solving time 31 min
Puzzle 629 Jul 26 July 2009
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Difficulty 10/10 Average solving time 48 min
Puzzle 632 Jul 27 July 2009
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Difficulty 10/10 Average solving time 30 min
Puzzle 634 Jul 28 July 2009
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Difficulty 10/10 Average solving time 34 min
Puzzle 635 Jul 28 July 2009
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Difficulty 10/10 Average solving time 36 min
Puzzle 637 Jul 29 July 2009
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Difficulty 10/10 Average solving time 34 min
Puzzle 638 Jul 29 July 2009
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Difficulty 10/10 Average solving time 42 min
Daily Killer Sudoku