Sudoku is a Number Puzzle that requires no mathematical knowledge (no adding or multiplication). It is based upon Japanese style crosswords where you are required to use logic to place numbers onto a 9x9 grid. To solve the puzzle you must make sure that every column, row and 3x3 box contains the numbers 1 through to 9.
Just like the bigger puzzles. These are shorter but still a challenge! Download the puzzles or print blank grids to make your own.
Same formula, different size, 8x8 grids. Choose and download the puzzles from various levels in print friendly pdfs to solve at leisure.
The classic 9x9 puzzle that made sudoku famous world over. Download the puzzles or print blank grids to make your own.
Got a dificult puzzle to solve? Use the puzzle solver, and if you are interested learn how it was coded.
A more challenging variant of sudoku. In Samurai Sudoku there are 5 interlocking 9x9 puzzles to solve.
Want to make your own puzzles? Need a bigger grid to help solve those tricky puzzles? Download printable grids.
The ultimate in sudoku challenge. This puzzle contains 5 interlocking killer 9x9 sudoku puzzles to solve. Serious time alert!
Killer sudoku which uses totals as the clues. Try these tricky 6x6 killer sudoku puzzles
For those who want a much bigger challenge try these oversized 16x16 puzzle.
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