Puzzle Lab
Every puzzle says how many moves it can be done in. Can you match it? You can undo, start over, and ask for a hint. There is no timer.
Tilt BoxTilt the box so the balls roll out of the hole!Water WorksTurn the pipes so the water reaches the flower!Traffic JamSlide the cars out of the way and let the red car out!Sort the FruitMove the fruit from basket to basket until each basket has one kind.River CrossingGet everyone across the river, but who can be left alone?Light UpTap a bulb and its neighbours flip. Can you light them all?Jug PourPour water between jugs until you have exactly the right amount.Frog HopSwap the green frogs and the red frogs, hopping one at a time.Pancake FlipFlip the stack with your spatula until the biggest pancake is on the bottom.
For grown-ups
A series of move-and-think puzzles with everyday things: tilt a box so the balls roll out of the hole, turn pipes so the water reaches the flower, slide cars out of a traffic jam, sort fruit into baskets, get everyone across a river. Every challenge says how many moves it can be done in, and the program has checked that is the true fewest. There are eight challenges at each of four sizes, undo and a hint on every one, and no timer. They practise planning ahead and picturing what a move will do.