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Put the numbers 1 through 9 into the blank spaces in the grid. Every row, every column, and every 3x3 box must contain the digits 1 through 9. Do you Sudoku?

1. No duplicates of the numbers 1-9 horizontally.
2. No duplicates of the numbers 1-9 vertically
3. No duplicates of the numbers 1-9 in the 3x3 cell groups

Click on a cell and use your keyboard to type in the numbers

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What is Sudoku?

Sudoku, sometimes spelled Su Doku, is a logic-based placement puzzle, also known as Number Place in the United States. The aim of the canonical puzzle is to enter a numerical digit from 1 through 9 in each cell of a 9x9 grid made up of 3x3 subgrids (called "regions"), starting with various digits given in some cells (the "givens"). Each row, column, and region must contain only one instance of each numeral. Completing the puzzle requires patience and logical ability. Although first published in 1979, Sudoku initially caught on in Japan in 1986 and attained international popularity in 2005. This content is from Wikipedia.

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