This is Su Doku multiplied: every column, row and 3x3 box must contain the digits 1 to 9. Where the puzzles overlap, the rows and columns do not go beyond their

For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance tes

With its larger and more complex grid, Samurai is Su Doku multiplied. With a five grid interlinked system, every column, row and 3x3 box must contain the digits

There are 500 Sudoku puzzles overlapping into 100 Samurai Style puzzles. Samurai Sudoku puzzles consist of five overlapping sudoku grids and follows the same ru