Number Place
Place 1–9 once in every row, column and box.
Select a cell, then choose a number.
Controls and saving
Tap a cell to select it. Use arrow keys to move, number keys to enter, M for notes and Delete to erase. Notes let you record your own candidates.
Progress is saved on this device when storage is available.
How to play
Select an empty cell and choose a digit. Digits cannot repeat in a row, column or 3×3 box. Turn on Notes to record candidates. Hints reveal a strategy, a location, then the answer.
Learn more
These puzzles are generated for this site. Tests check a unique solution and a complete path of logical deductions for every puzzle. The three groups require singles, hidden singles, and candidate eliminations respectively.