usa today sudoku Example: Consider the following Sudoku grid: +-------+-------+-------+ | 1 2 3 | 4 5 6 | 7 8 9 | | 4 5 6 | 7 8 9 | 1 2 3 | | 7 8 9 | 1 2 3 | 4 5 6 | +-------+-------+-------+ | 2 3 4 | 5 6 7 | 8 9 1 | | 5 6 7 | 8 9 1 | 2 3 4 | | 8 9 1 | 2 3 4 | 5 6 7 | +-------+-------+-------+ In this grid, we can apply the XYZ-Wing strategy to eliminate the number 2 from the first row, first column, and first box. printable sudoku 4 per page Box Line Reduction (BLR) Box Line Reduction is a powerful technique that focuses on the intersection of rows and columns within a 3x3 box.
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usa today sudoku Learn the Basics: A Sudoku book is an excellent resource for beginners who want to learn the basics of the game. killer sudoku print Hidden Pair, Hidden Triple, and Hidden Quadruple: These techniques involve identifying numbers that appear twice in a row, column, or subgrid, but are not visible to the naked eye.