Pengnacode

Tap a penguin. Watch what it starts. Pengnacode is a one-tap puzzle played on ice. Tap any penguin and it slides the way it is facing. As it closes in on another penguin, it leaps — and the penguin it would have hit runs off the way that one is facing, letting the first land in its place. The one that ran reaches the next penguin, and the relay carries on. Walls send a penguin back the other way. Bump a blue or a green penguin and you turn a quarter circle instead. The King and the Queen never turn. Get the King to his castle, or bring the King and the Queen together. - 359 puzzles, 3 to 10 taps each. - Every one is checked by a solver: always solvable, shortest answer known. - Difficulty comes in waves, not a straight climb. - Tap only. No timer — take as long as you like. Best in a tall window. Still in development; comments welcome.