Advanced Sudoku: The Finned X Wing
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17:31
Diabolical sudoku: Finned X-Wings
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28:59
Extreme Sudoku: Finned Fish, XYZ Wings And Empty Rectangles
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56:46
This Might Be The Puzzle Of The Year (and it's only February...)
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26:33
Extreme Sudoku: The Techniques You NEED To Know
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10:15
The XYZ Wing, HOW to Find it, and WHY it works!
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30:26
Inside Jehovas Zeugen | ARTE Re:
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29:27
Extreme Sudoku: Viewer-Requested Solve Of A Brutal Puzzle
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38:21