make every node one color, in as few moves as you can.
tap the pulsing node.
tap the node. it turns a quarter turn, the way the switch says.
tap the node.
each node it points at turns too, until the chain leaves the board.
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.
find the move.
stuck? tap optimal or yours, then take a hint.
↻B2↺D3↻A1
tap optimal or yours.
full rules
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how chains work
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