Solitaire Chess by ThinkFun

Love it. Everyone is unique. For extra challenge, memorize the positions, close your eyes and solve. You will hear your brain churn.

Excellent exercise routine for the brain. You will lose brain fat in 30 days. Guaranteed

Excellent logic puzzle, so fun its addicting. I finished all of the 100 expert puzzles in less than a month, playing every day. I wish they would update it with more puzzles!

What do you want from me? Count the stars!

I too bought the hands on version which I utterly enjoyed and I then went looking for the aps version. They are both very habit forming in a good way. If you like reasoning games and chess you will definitely like this game.

Just as addictive my second time through as it was the first. Great brain calisthenics!

Great game . Way better than their physical board style.