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)

A Brief History of Sudoku

Sudoku is the game that doesn't need presentations! Includes 1 x brochure with rules + 30 challenges x 6 difficulty levels: EASY, MEDIUM, HARD,

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The origin of the Sudoku Puzzle

Beginning of Time - The New York Times

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