Their ruleset differs from other implementations I've seen. In the original Milton Bradley rules, a player must confirm a sinkage upon the fatal hit on any shi

Their ruleset differs from other implementations I've seen. In the original Milton Bradley rules, a player must confirm a sinkage upon the fatal hit on any ship. Also, in the print version in newspapers (e.g. in the bimonthly Puzzle Brainia insert), ships are not allowed to touch (which makes sense, since that can't happen on the open ocean).