New setting: Ships shouldn't touch each other

[morfikov]

In the version of the Ship game I was playing in the past, there was a rule where ships couldn't touch each other. I mean there was a space of at least one square between two or more ships. But here, the ships can be placed next to each other without any space. Would you add an option that introduces this kind of rule?

[Yonjuni]

I think this is a clear candidate for a new setting, s.t. the players can decide what they want.