A solo web puzzle from HighRoad Software
Play a 6×6 Sudoku.
Fill each row, column and 2×3 box with the digits 1–6, without repeating a digit. This is one fixed puzzle, ready to play here.
Enable JavaScript to enter digits, keep notes and check the grid. The fixed puzzle below and its rules remain readable without it.
| 1 | 2 | 4 | 6 | ||
| 5 | 6 | ||||
| 6 | |||||
| 5 | 1 | 3 | |||
| 5 | 1 | ||||
| 6 | 1 | 2 | 3 | 4 | 5 |
Choose an empty square, then a digit. Given digits stay fixed.
Every row, column and 2×3 box contains 1–6. Ready to try a shared grid? Explore nearby play in the free Sudoku Arena app.
See how nearby play works →Entries and notes stay in this browser tab, including after a refresh. Reset puzzle clears them. No account, tracking or server-side puzzle storage.
A few useful controls
Select an empty square. Type 1–6 or use the digit buttons. Arrow keys move between editable squares; Backspace or Erase clears the selected square.
Turn Notes on to pencil possible digits into an empty square. Select a digit again to remove that note. Turn Notes off to enter your answer. Undo reverses a change from this visit.
Check puzzle marks repeated digits with a dashed border and describes the conflict on each square. A complete grid needs every row, column and box to contain 1–6. Notes are not checked. Reset starts the same puzzle again.