Houdah Software today released Sudoku Uno 1.3 for iPad. Sudoku Uno is based upon the same powerful Sudoku engine as ACTSudoku for iPhone. It is able to provide an almost infinite number of Sudoku games categorized in 3 levels of difficulty, determined by techniques to master. Additionally it is able to provide intelligent hints. Sudoku Uno features an unlimited number of Sudoku games with intelligent hints with explanations.