Number Place - Free Sudoku Puzzles Online
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NumberPlace
Ad-free, completely free Sudoku puzzles. 6 difficulty levels, daily challenges, detailed statistics. Play offline anytime.
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Glossary
- Naked Single
- Hidden Single
- Naked Pair
- Pointing Pair
- X-Wing
- Candidate
- Given Cell
- Unique Solution
- Backtracking
- Box/Line Reduction
- Hidden Pair
- Naked Triple
- Swordfish
- Pencil Mark
- Constraint Propagation
- Latin Square
- Row, Column, and Block
- Chain
- Difficulty Rating
- Daily Challenge
- Hidden Triple
- XY-Wing
- Coloring
- Unique Rectangle
- Box/Line Reduction
- Conjugate Pair
- Bi-value Cell
- Strong Link
- Weak Link
- W-Wing
- XYZ-Wing
- Flow State
- Working Memory
- Mini Sudoku
- Symmetric Puzzle