Kakuro: Number Crossword is a free game developed by Conceptis Ltd. for iPhone. This addictive logic puzzle game combines elements of crosswords and Sudoku to create a challenging and engaging experience.

The objective of Kakuro is to fill empty squares with numbers from 1 to 9, ensuring that the sum of each horizontal block equals the clue on its left, and the sum of each vertical block equals the clue on its top. With a grid size of up to 22x22, players can choose from multiple difficulty levels ranging from very easy to extremely hard.

To assist in solving the puzzles, the game offers useful features such as zooming for easier navigation, showing possible sum combinations in a block, displaying the sum remainder of a block, and using pencilmarks for temporary number placement. Additionally, the game includes a Weekly Bonus section, providing an extra free puzzle each week for added fun.

With 200 free puzzle samples and a continuously updating puzzle library, Kakuro: Number Crossword offers hours of intellectual challenge and entertainment. Whether you are a puzzle novice or a seasoned enthusiast, this game is sure to sharpen your logic and improve your cognitive skills.