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2 sudoku types : standart sudoku and samurai sudoku .
5 difficulty levels.
Custom difficulty , you can select the number of open cells. The modern form of Sudoku was invented in 1986 in Japan.
The objective of puzzles is to fill a 9×9 grid so that each column, each row, and each of the nine 3×3 boxes contain the digits from 1 to 9 only one time each.
Digits cannot repeat in box, row or column.
Spiel Tags
en, logic, memory, Puzzle, samurai sudoku, sudoku
