make every node one color, in as few moves as you can.
tap the pulsing node.
tap the node. it turns a quarter turn first, the way the switch says, then pushes along where it now points.
tap the pulsing node. then set the switch to left and tap it again.
each node it points at turns too, until the chain leaves the board.
rotate a chain can come back through a node it turned.
some taps need a left turn. flip the switch first.
set it to left, then tap the first node.
your turn. one move makes this board one color.
rotate find the move.
stuck? tap optimal or yours, then take a hint.
343 optimal
--- yours
tap optimal or yours.
full rules