Tetris creator Alexey Pajitnov has launched a new game designed exclusively for mobile devices.
Dubbed Marbly, the title is available for both Apple's iPhone and iPad. The game's description in Apple's App Store says that it's an "easy to get, but tricky to master real puzzle game" It comes with over 180 puzzles that users must work their way through.
Pajitnov has been developing games for decades, but he's best known for creating Tetris -- the massive hit for Nintendo's Game Boy.
Marbly is available now as a free download in Apple's App Store. It's not clear whether the title will come to Android.