I'm in the same boat. That's why I'm glad when games, like Peggle, or Enemy Territory: Quake Wars (not really a puzzle game, but still works for the example) ha

I'm in the same boat. That's why I'm glad when games, like Peggle, or Enemy Territory: Quake Wars (not really a puzzle game, but still works for the example) have options for color blind people. It's not that always difficult to add, but makes a huge difference to the end user, if they're colorblind.