Ambrosia Software, Inc. presents another of their first iPhone games, Mr. Sudoku. Available today from the iTunes App Store for $9.99 (US) and written specifically for the iPhone and iPod touch, Mr. Sudoku is a game truly meant to be played on a mobile device.

Sudoku is an addictive, logic-based number placement puzzle game. Each puzzle starts with a partially completed grid that you'll have to solve. The object is to insert numbers in the boxes so that each column, row, and each of the nine boxes contain the digits from 1 to 9 exactly one time only.

Mr. Sudoku's unique and innovative interface lets you use a familiar input device to select your digits -- your own personal digits! Simply use your finger to draw the number you want, and it's instantly converted into the actual number. Ensuring the strategy and brain-flexing doesn't stop, there's 4 difficulty levels with 1,000 puzzles per level, for a total of 4,000(!) different puzzles!