Color sudoku is awesome. I love this app. Unlike other apps, here the graphics are well laid-out and easy on the eyes. No extra bling, whistles or cute fluff to distract. Its elegant and clean. Well done.
Working in color seems like a purer right-brain experience. I enjoy direct and indirect solves more because I can visually follow a pattern and see its broader play.
The game plays out differently this way. It seems to have more soul, more plot.
More satisfaction.
The challenge of distinguishing close hues is an interesting feature and seems to depend partially on the brightness setting of your screen.
It would be cool if we were able to create our own color palettes (or even pattern/texture palettes). Some of the colors are just too stressfully close to others and many of the color palette options are pointless.
Some reviewers feel the skill levels are low (that the hard isnt so hard), but Ive found the sudoku arrangements slowly get harder within each category. You just have to keep at them.
The "challenge" feature is good for sharing, and I like that I can delete the time score from the message if I send one to a friend. Its not always about speed.
To share a game, it helps if the friend has an iPhone. Evidently its not so available to other devices.
Lastly, while the price seems high, its worth it if you actually play sudoku.
Theres a future with this app.