Richard Sandberg recently contacted me about his new puzzle app RLogic. It's actually 4 different games in one tiny package. The first image shows Turn on the Lights. It's not a version of Lights Out. Rather, it's a topology puzzle. Start at a single point and traverse a path around every dot. There are 50 free levels - did them all very quickly.
The second image is for Return the Balls. This is the most interesting of the lot. The yellow circles indicate how a ball in that row can travel, perhaps 2 up or 1 down. Naturally, get the purple ball to the purple ring....etc. Also 50 free levels - solved them pretty quickly. Though I imagine the more advanced levels could get pretty tricky.
The third image is the classic Measure Water. Given a 6 gallon jug and a 13 gallon jug, how can you perfectly measure out 5 gallons? I've only done 13 of these. That's enough.
The last image is for the game Turn the Wheels. This is very interesting. The goal is to turn each wheel to 0 at the same time. Tap on, let's say green, and it will rotate 90 degrees. See the tiny blue and red circles with 3's next to them? They will turn 270 degrees on green taps. Quite tricky. I like.
https://itunes.apple.com/app/rlogic/id1007593078?l=en&mt=8