Extreme Sudoku: Human Logic Trumps Computer Guessing
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37:26
Sudoku Wars: Human 1 Computer 0
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1:12:36
The Setter Of The World's HARDEST Sudoku Returns!
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31:51
Another Sudoku Breakthrough: Man Vs Machine
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13:39
tricky basic math question
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32:18
PERFECT CHESS BY MAGNUS CARLSEN!!!!
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1:59:30
Vintage Peonies Still Life | Floral TV Art | Gold Frame | TV Screensaver
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28:34
The Sudoku With Only 10 Given Digits
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9:42