Cogs HD

I forgot about this game on my iPad but it is a great and unique game, with original concepts.

Great game. It used to open but now it won't. I'm kind of upset because it's fun.

This brain twister (actually slider) will make the wheels in your brain turn and then blow your mind like the many “Cogs & Steam Pipes” you have to slide into place to complete the some 5o plus puzzles. The graphics are eye candy and the ergonomics pajama comfortable for the fingers. For me, what sealed the deal to buy the full version was the so-called “Lite” gave me exactly what I needed to know what I was about to pay for and was free of clutter and ads that torque the fun out of any trial. I wish they would make it for the iPhone. Definitely one of the best puzzle games out there and free of glitches. It's based on "The n-puzzle," (invented in 1879 and the basis for the Rubik’s Cube) was big in the 70‘s and commonly known as the "The 15 Puzzle" (and it's little brother "The 8 Puzzle"). It’s a classical problem for modeling algorithms involving heuristics (don’t let that scare you) and consists of sliding squares in a frame to solve the objective which is described before you start, giving you times to beat. The great part is, even after solving the puzzle, you can do it over to best your times making this game a real bang for the buck. Bottom line... it's well worth the time and investment!!