Invented by an American named Howard Garns and originally called "Number Place", the game we today know as Sudoku became very popular in Japan during the 1980s, where it was renamed "Su Doku."
Sudoku puzzle books are hugely popular today because the game is easy to learn and Sudoku puzzles are available at various levels of difficulty, ranging from easy Sudoku to hard Sudoku.
Often described as brain puzzles, mind puzzles or logic...
SUDOKU Puzzle Book 1: 200 Puzzles at 4 levels is onder andere te koop bij: Bol. Esy raadt altijd aan om meerdere aanbieders te bekijken om geen last minute deals mis te lopen.