Puzzle Cottage
Puzzles
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Puzzle 1 of 12
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Puzzle 2 of 12
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Puzzle 3 of 12
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Puzzle 4 of 12
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Puzzle 5 of 12
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Puzzle 6 of 12
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Puzzle 7 of 12
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Puzzle 9 of 12
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Puzzle 10 of 12
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Puzzle 11 of 12
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Puzzle 12 of 12
Frequently asked questions
What are blank Sudoku grids for?
Three uses: (1) designing your own puzzles, (2) re-solving a problem from scratch when you get stuck on a printed puzzle, (3) teaching the mechanic by filling in clues yourself.
Can I use these for tournaments?
Yes — they're standard 9×9 with the conventional 3×3 boxes. No restrictions on use.
How do I generate my own Sudoku puzzle?
Easiest approach: start with the solved grid (any complete 9×9 satisfying the constraints), then remove cells one at a time while checking that the puzzle still has a unique solution. Generators online (including ours) automate the validity check.