I did not consider this to provide any additional value.

I asked for this to be removed in
exercism/problem-specifications#1195 (comment)

I requested this be added in
exercism/problem-specifications#1195 (review)

There was an implicit test of this in the 5x5 board, but we'll start
small.

Note that this track deliberately does not change `territories` to be a
map mapping a player to all of their territories, instead keeping it an
array of all separate contiguous regions. This is because I (as the
track maintainer) believe that keeping it an array provides better
fidelity of the board and helps ensure that implementations are doing
the right thing.

This seemed a significant distinction, so I requested it in
exercism/problem-specifications#1195 (comment)

This was requested in
exercism/problem-specifications@fa45468#r27822802

exercism/problem-specifications#1195

Note that this track deliberately does not change `territories` to be a
map mapping a player to all of their territories, instead keeping it an
array of all separate contiguous regions. This is because I (as the
track maintainer) believe that keeping it an array provides better
fidelity of the board and helps ensure that implementations are doing
the right thing.