He basically wrote mines could be detected by mine sweepers, which have the gravitic detection ability. That is, Mine Sweepers I are able to detect the weakest mines, Mine Sweepers II are able to detect Mines I and Mines II, and so on.
I would be interested in this game Gandalf, if I weren't already involved in ten games, so I am afraid I will not join any other game at the moment being. (No, I will not, do not attempt to tempt me and...
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