Sudoku 2.7 A humanistic Sudoku solver that explains the required logic to solve the puzzle.
iSudoku 2.2.2600 Not only a puzzle creator and solver, but a great tutor to help you quickly master sudoku skills. It can automatically generate five different levels of puzzles and supports a powerful hint system with two sets of techniques to help you when needed.
Valgetal - tons of fun for real number-crunchers! First released in 1985, Tetris has been cloned and modified a countless number of times. Today, it is available on virtually every gaming platform ever released in hundreds of variations and can well be called the most popular game of all times. Although Tetris is a game, entertainment is not its primary purpose. Tetris improves your reaction and teaches you to make quick decisions based on the current situation, which