Kakuro Game
About
Also known as Cross Sums, Kakuro is a mix between a crossword and sudoku puzzle. Unlike a crossword puzzle where the clue is a word or phrase, a Kakuro clue is a number that the corresponding answer cells must add up to. That’s where the sudoku part comes in. Each clue has at least 2 and no more than 9 answer cells. Each answer cell must be a single digit (1-9). Duplicate digits are not allowed within a clue (4 = 1+3, 4 ≠ 2+2).
My advice is to stick with it. It doesn't take long to pick it up and once you do you'll be hooked. Check out the In-Game Help for a step-by-step on how to solve a Kakuro puzzle.
Can also be played at:
Website: https://www.kakurogame.com
iOS: https://itunes.apple.com/us/app/kakuro-game/id1436552307
Android: https://play.google.com/store/apps/details?id=com.kakurogame.kakuro_final