My name is Lukas and I'm an independent software developer from Germany. I specialize in Android mobile app development. For books on puzzles (Sudoku, Kakuro, crossword puzzles etc.) in German, see LR Rätsel.
Sudoku for Beginners
Sudoku for Pros
Minesweeper
Sopranos Quiz
Breaking Bad Quiz
The Wire Quiz
Harry Potter Quiz
Football Quiz
Simpsons Quiz
NBA Quiz
NBA Player Quiz
NBA Over/Under Quiz
NBA Top Trumps
Snooker Quiz
Geography Quiz
