Express Delivery

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Our three robots found a few mysterious boxes on the island. After some examination Nicola discovered that these boxes have an interesting feature. If you place something in one of them, you can retrieve it again from any other box. Stephan figures this makes for quick delivery of cargo across the island, moving loads twice as fast. Stephan can place the cargo in one box and pick it up later at the delivery point. On the map there are water cells which Stephan can't pass,...

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