Unique Rectangle Strategy The Unique Rectangle strategy is a useful technique when you have a 2x2 or 3x3 square with only two numbers that can be placed in it. sudoku club
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The grid remains the same, with 9 rows, 9 columns, and 9 boxes, but the numbers to fill in are fewer, making it more challenging to find the correct placements. sudoku club Follow the rules: Each row, column, and 3x3 subgrid must contain all the digits from 1 to 9 without repetition. tips for solving difficult sudokutips for solving difficult sudoku Developed by puzzle enthusiasts, Dkm Sudoku Online offers a wide range of difficulty levels, from easy to expert, catering to players of all ages and skill levels.
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