Attractive Layout, Amazing Graphics, Extraordinary Designed Board, Intuitive User Interface, Ease of Use. This is the more advance level board game that you should challenge like you never experience before. Unlimited puzzles with varied level of difficulty to fit your choice. 5x5, 6x6, 7x7, 9x9, 9x11 You’ll never regret having this Kakurasu Challenge, which is just perfectly challenge your mind, your logical thinking skill, your brain cells! Interrupted? Need a Break? Exit Kakurasu Challenge and you’ll get to see your incomplete puzzle is saved and awaiting for your return. Stuck? Need some guide? Simply click on hints and you'll get an answer right away! Useful hints as aid, why not! Feature: - Auto Save Mode - Levels of Difficulty - Endless, Randomly Generated Puzzles - Game Timer - Pause/Resume Puzzle - Smart Hints How to play: The goal is to make some of the cells check in such a way that: 1. The check cells on each row sum up to the number on the right. 2. The check cells on each column sum up to the number on the bottom. 3. If a check cell is first on its row/column its value is 1. If it is second its value is 2 etc. Long tap a cell to place an X.