Description from the Publisher
Generate and enter/solve 9x9 and 16x16 Sudoku puzzles against the clock. Five levels of difficulty, to suit all levels of play. Play on your PC with our easy to use system, or print out to solve the traditional way. Save games to complete later. Fastest times stored with your name! Special coaching modes to help you with really tricky puzzles. Wrong guesses are highlighted, and possible values for empty squares are pencilled in.