Adobe's Dave McAllister called me evil for killing his productivity when I suggested Assembler 3 as a Time Waster a while back.

To exact his revenge, Dave offered Chroma Circuit to me.

It looks simple enough. Click on the ships to rotate them and align the colors in the correct order. Do that, and you'll complete the circuit and pass the level.

How hard can it be? Triangles only have three sides. Squares have four. That doesn't sound so bad - until you get into the more complex boards where the play area becomes crowded with pieces.

There's always one...stinking...piece. Somewhere, right before you solve a level, that throws a wrench into the works and causes your forward progress to grind to a halt. A little backtracking and you'll move on, but not without hurting your chances of meeting the minimum moves goal.

Chroma Circuit has enough depth to keep your brain thoughtfully engaged for a decent amount of time - and the frustration level stays pretty low since you don't have to solve a level by the time you hit the magic number.