37:53

A puzzle that's not hard to grasp.

17:59

Techniques for Hard Sudoku

45:06

With Boughs of Holly

58:48

Challenge Accepted for this great Fog of War puzzle.

57:11

A knotty problem.

15:46

Do This EVERY Time You Solve Sudoku

24:25

SOS - Help me Solve my Sudoku

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Sudoku Round The Globe: Sweden