ZuDuKu Pro

ZuDuKu Pro is a new kind of Sudoku game app for your Mac.  The unique features of the app are: 1. You may play Sudoku games with numbers (1-9), interesting figures or letters (A-I). 2. It provides seven game levels with increasing difficulty to challenge your puzzle solving skills. 3. It provides sound effects to make playing games more interesting. You may turn-on/off sound effects at anyti…