Extreme Sudoku: Viewer-Requested Solve Of A Brutal Puzzle
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3:30:33
The Hardest Sudoku I've EVER Solved
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28:03
Extreme Sudoku: Wings, Skyscrapers & Empty Rectangles
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26:33
Extreme Sudoku: The Techniques You NEED To Know
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16:43
Sudoku Mastery: X Wings, Y Wings & XY Chains
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12:49
DxSudoku’s SECRET Strategy To Solve ANY Extreme Sudoku! YouTube Collaboration
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12:51
SECRET Trick For No Mark Sudoku Solving – SHC 263
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27:31
Sudoku Tricks: The Swordfish Pattern
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4:28