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Description

Welcome to Sudoku games at sudoku-online.co, which contains games that are completely free for you and suitable for all ages.
Sudoku is one of the classic brain games ever, with the goal of filling a 9 x 9 grid so that each row, each column, and each 3x3 cell containing the numbers 0 to 9 are unique.
Although 9×9 grids with 3×3 regions are by far the most common, many other variations exist. Sample puzzles can be a 4×4 grid with 2×2 areas; The 5 × 5 grid with pentomino regions has been published under the name Logi-5; The Puzzle World Championship has featured a 6×6 grid with 2×3 domains and a 7×7 grid with six heptomino regions and one separable region. Larger grids can also have, or be different, irregular shapes (under various names such as Suguru, Tectonic, Jigsaw Sudoku, etc.). Time offers a "Dodeka Sudoku" 12×12 grid with 12 areas of 4×3 squares. Dell Magazines regularly publishes 16×16 "Number Place Challenger" puzzles (using numbers 1–16 or letters AP). Nikoli offers 25×25 "Giant Sudoku". A 100×100 grid puzzle called Sudoku-Zilla was published in 2010.
Initially, the 9 x 9 square will be pre-filled with one or more numbers, from which you need to find the remaining numbers to fill in the blanks in the 9 x 9 box to follow the rules of the game.
With simple gameplay and rules, but the time to complete the game will determine your score.
With easy, medium, and hard game modes, the number of pre-filled cells will be different, so the requirements for players will also be different.

Controls guide

You need to fill in each blank cell with a random number from 0 to 9 so that each row, each column, and each 3 x 3 grid contains a unique sequence of numbers from 0 to 9.
Click on the square and press any natural number from your keyboard to enter the number, or press the delete key to delete the number you entered.

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