Sudoku Online
📅 16.06.2026
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Description
This is a classic logic-based puzzle game where you fill a 9x9 grid with numbers so that each column, each row, and each of the nine 3x3 subgrids contains all digits from 1 to 9 without repetition. It's a brain-teasing HTML5 browser game that sharpens your focus and problem-solving skills, with the main objective being to complete the entire grid correctly using only deduction. No guessing needed—just pure reasoning to place the right number in every empty cell.
Instructions
Start by looking at the grid; some numbers are already filled in. Your job is to figure out which digits are missing from each row, column, and 3x3 box. Click on an empty cell, then select a number from 1 to 9 to place it. Remember, you can't repeat a number in any row, column, or box. If you get stuck, use the process of elimination—check which numbers are already present to narrow down your options. Keep going until every cell has a number, and you win when all constraints are satisfied.
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