Jooel:

The challenge description specifies that white marbles always start out on the left:
Quote:

White marbles are always start out on the left side and black marbles always start out on the right side


You work the other way, thus the n=10 does not yet qualify.
I'm working on the reverse solutions so that you can either start with a white or black marble. I'll post them once I'm done.
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There are two types of vessels, submarines and targets.