Frogs sit on mossy stones. Leap one over a neighbour to clear it, and leave a single frog in every pond.
One leap
Tap a frog and the stones it can reach light up. Each one is two steps away in a straight line, over a neighbouring frog, onto an empty stone. Tap a lit stone and the frog leaps; the frog it jumped over leaves the pond.

Leave one
Every leap removes a frog, so a pond is a short chain of choices. Leap the wrong frog first and the rest drift out of reach. Plan the order, and watch which stones you leave empty.

Five ponds
Five ponds grow from a four-frog warm-up to an eleven-frog crossing, and each one can be cleared. Undo takes back your last leap; Restart resets the pond. When one frog remains the pond turns green: tap Next. On the last pond, Again returns to the first.

Controls
Tap a frog, then a lit stone to leap. Tap Undo, Restart or Next as needed. On desktop, click instead of tapping.