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Additionally, the cells (X, Y, and Z) form a w-wing pattern with the cell (1) in the first row, third column. extreme sudoku book Step 3: Use the Process of Elimination For cells that are not filled in, look at the numbers in the same row, column, and 3x3 subgrid. uk sudoku
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extreme sudoku book Advanced Sudoku solving methods involve complex patterns like X-Wing, Swordfish, and XY-Wing. These techniques are often required for hard and expert level puzzles. empty sudoku grid There are several difficulty levels in Sudoku, ranging from easy for beginners to expert for seasoned players. Solving techniques include scanning, cross-hatching, and identifying candidate numbers.
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