Hidoku Challenge

500 Hidoku games that can be played in any order. The games start small but get larger as you progress. Though challenging none are frustratingly difficult and each has a single solution. Game 1 acts as a tutorial game in case you're new to Hidoku. An innovative method for number entry dispenses with the traditional keypad and makes playing each game a more enjoyable experience. And there are undo/redo, path display and progress check buttons to help you further. All game progress is saved automatically.