Killer Sudoku, Difficulty 10

Puzzle 4589 Dec 11 December 2011
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Difficulty 10/10 Average solving time 45 min
Puzzle 4599 Dec 13 December 2011
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Difficulty 10/10 Average solving time 38 min
Puzzle 4609 Dec 15 December 2011
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Difficulty 10/10 Average solving time 37 min
Puzzle 4614 Dec 16 December 2011
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Difficulty 10/10 Average solving time 35 min
Puzzle 4619 Dec 17 December 2011
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Difficulty 10/10 Average solving time 30 min
Puzzle 4624 Dec 18 December 2011
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Difficulty 10/10 Average solving time 29 min
Puzzle 4629 Dec 19 December 2011
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Difficulty 10/10 Average solving time 33 min
Puzzle 4639 Dec 21 December 2011
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Difficulty 10/10 Average solving time 37 min
Puzzle 4649 Dec 23 December 2011
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Difficulty 10/10 Average solving time 31 min
Puzzle 4659 Dec 25 December 2011
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Difficulty 10/10 Average solving time 33 min
Daily Killer Sudoku