I am very excited you show the latest project I have been working on!
It is the logic game called Hitori (http://en.wikipedia.org/wiki/Hitori
). I attached a little walkthrough to help you understand how to play because the game is more fun when you understand the rules.
This isn't a guessing game so it will help you to play by analyzing the board; this will help you in the bigger and harder levels.
This game comes with 100 levels (and solutions) built in. Also when you beat a level you'll have a star next to the level name. So try to beat all the levels.
There is undo/redo so you can go back (and forth) many moves.
This program registers the .hitori extension for external level files. So in addition to the 100 levels; I included some extra external levels should you want to play some more levels!
It should be just about finished; so let me what you think! I included all my source code as well! I tested this with a TI-Nspire Touchpad and made it look/play alright on that device. Though the Nspire CX's color screen is nice; it should play well on any Nspire.
Have a wonderful day!