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The diagonal constraint adds a new layer of complexity that keeps even expert solvers engaged.
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Paradoxically, the extra constraint can sometimes make puzzles easier to solve!
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offline sudoku Sudoku competitions are held globally, where speed solvers compete to finish complex grids in the shortest time possible. monster sudoku printable 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. sudoku puzzle books To solve a Sudoku puzzle, one must look for cells where only one number is possible, or rows/columns/blocks where a specific number has only one possible placement.
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