The following Sudoku formats are supported on this site. Click on the text link to go to the appropriate solver.
The classic Sudoku grid consists of nine 3 by 3 regions.
Similar to Sudoku except played with letters instead of numbers
A Shi Doku grid consists of four 2 by 2 regions. This simple solver is ideal as a starting point for children learning to solve Sudokus.
A Roku Doku grid consists of six 3 by 2 regions. This solver is ideal for beginners.
The 8 by 8 solver consists of eight 4 by 2 regions.
A Maxi Sudoku consists of twelve 4 by 3 regions.
A huge Sudoku consists of sixteen 4 by 4 regions.