Test your Sudoku solving skills like never before with the 1000 Extreme Sudoku program, which can be downloaded onto your PC.
1000 Extreme Sudoku contains 1000 Sudoku puzzles that are incredibly hard to solve. All 1000 Sudoku puzzles in this collection can also be printed out and completed in hard copy.
1000 teka-teki Sudoku untuk dipecahkan
