Killer Sudoku, Difficulty 10

Puzzle 1589 Jun 11 June 2010
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Difficulty 10/10 Average solving time 36 min
Puzzle 1619 Jun 21 June 2010
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Difficulty 10/10 Average solving time 21 min
Puzzle 1625 Jun 23 June 2010
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Difficulty 10/10 Average solving time 43 min
Puzzle 1628 Jun 24 June 2010
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Difficulty 10/10 Average solving time 33 min
Puzzle 1637 Jun 27 June 2010
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Difficulty 10/10 Average solving time 32 min
Puzzle 1652 Jul 2 July 2010
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Difficulty 10/10 Average solving time 30 min
Puzzle 1655 Jul 3 July 2010
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Difficulty 10/10 Average solving time 39 min
Puzzle 1658 Jul 4 July 2010
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Difficulty 10/10 Average solving time 48 min
Puzzle 1664 Jul 6 July 2010
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Difficulty 10/10 Average solving time 29 min
Puzzle 1673 Jul 9 July 2010
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Difficulty 10/10 Average solving time 20 min
Daily Killer Sudoku