Killer Sudoku, Difficulty 10

Puzzle 431 May 21 May 2009
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Difficulty 10/10 Average solving time 34 min
Puzzle 434 May 22 May 2009
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Difficulty 10/10 Average solving time 40 min
Puzzle 437 May 23 May 2009
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Difficulty 10/10 Average solving time 38 min
Puzzle 440 May 24 May 2009
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Difficulty 10/10 Average solving time 40 min
Puzzle 443 May 25 May 2009
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Difficulty 10/10 Average solving time 50 min
Puzzle 446 May 26 May 2009
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Difficulty 10/10 Average solving time 39 min
Puzzle 449 May 27 May 2009
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Difficulty 10/10 Average solving time 38 min
Puzzle 452 May 28 May 2009
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Difficulty 10/10 Average solving time 33 min
Puzzle 455 May 29 May 2009
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Difficulty 10/10 Average solving time 30 min
Puzzle 457 May 30 May 2009
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Difficulty 10/10 Average solving time 32 min
Daily Killer Sudoku