Sudoku Up

Sudoku Up is a high-quality collection of Sudoku Puzzles.
Sudoku Up Solitaire includes millions and millions of different puzzles to keep you entertained for years to come... No need to search for other sources of Sudoku! Sudoku Up includes five difficulty levels to challenge you. Enjoy the detailed statistics of each game with graphs, 3D pie and bar charts, and tables to estimate your skill level...