### Sudoku

### Super Killer Sudoku

### X-Sudoku

### Jigsaw Sudoku

### Jigsaw X Sudoku

### Mini Sudoku

### Download Sudoku

**Newdoku**

### Try 2048

### Today's Sudoku

### Samurai Sudoku

Please use logical thinking instead of guessing! Each puzzle only has one solution.

- In pen mode, you can directly import the candidate number by using Shift + number (Alt + number).
- In pencil mode, you can directly import numbers by using Shift + number (Alt + number).
- Key C (or Del, BackSpace): to deselect the number of the lattice or the candidate number.
- Key ESC: to deselect.
- Key P: a toggle switch to change from pencil and pen mode.

Jigsaw Sudoku is also referred to puzzle Sudoku. It is another type of standard Sudoku. Different from standard Sudoku, jigsaw Sudoku uses irregular gridding groups to replace traditional 3x3 grids.

Jigsaw Sudoku puzzles on Sudoku.cool have seven sizes of “3x3,4x4,5x5,6x6,7x7,8x8,9x9” with ten difficulty levels. By pressing "New Puzzle...", you can choose game size and difficulty level.

The solving process for Jigsaw Sudoku is to fill numbers from 1-N in NxN grids.Numbers cannot be repetitive in each row, each column, each group (N grids in rough-line boxes).

- Number 1-N can only appear once in each column.
- Number 1-N can only appear once in each row.
- Number 1-N can only appear once in each group.

Jigsaw Sudoku can also add rules of having two diagonal lines. The new games can be referred to Jigsaw Diagonal Sudoku or Jigsaw X Sudoku .

This website will provide you printable irregular sudoku puzzles, we daily update including solutions. We recommend using a A4 paper.