Sudoku (数独) is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9×9 grid so that each column, each row, and each of the nine 3×3 boxes contains the digits from 1 to 9 only one time each.
Before play, select dificulty: very easy, easy, med, hard or very hard.
Press ? for help.
Newsademic nr 290 - British English edition (with activities) - Newsademic is an easy-to-understand international newspaper, written and edited in a style that assists English Language teaching and learning. Newsademic ...
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