The History of Sudoku – THE HOURGLASS

Logic, patience and a pencil: that’s all you need to defeat Sudoku’s 9×9 grid. At first glance, the maze of numbers and empty squares seems like a mathematical quandary. But upon closer inspection, Sudoku requires no mathematical skill at all. It also doesn’t require general knowledge (like crossword puzzles) or linguistic ability (like word games)

Can anyone explain why this sudoku book uses colons? I think they

130+ Blank Sudoku Stock Photos, Pictures & Royalty-Free Images

Sudoku - Wikipedia

Sudoku – The history of the game from the idea to online competitions

The BFD Voting for the New Freedom Parties

10 of the Greatest Puzzles in History

130+ Blank Sudoku Stock Photos, Pictures & Royalty-Free Images

The History of Sudoku – THE HOURGLASS, sudoku

Jobs Careers on LinkedIn: Registrations now open for management

The History of Sudoku – THE HOURGLASS