"Doubt is not a pleasant condition, but certainty is an absurd one." — Voltaire
"Doubt is not a pleasant condition, but certainty is an absurd one." — Voltaire
At peak Sudoku popularity in 2006, over 600 different Sudoku books were published in a single year.
At peak Sudoku popularity in 2006, over 600 different Sudoku books were published in a single year.