yep, but thats not a valid solution, it doesnt check sides or corners of ships size >= 2
i dont know if you can paste this, but it will return 'true' with fileds like this
[[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],

[1, 0, 1, 0, 0, 0, 0, 0, 1, 0],

[1, 0, 1, 0, 1, 1, 1, 0, 1, 0],

[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],

[0, 0, 0, 0, 0, 0, 0, 0, 1, 0],

[0, 0, 0, 0, 1, 1, 1, 0, 0, 0],

[0, 0, 0, 0, 0, 0, 1, 1, 0, 0],

[0, 0, 0, 1, 0, 0, 0, 0, 0, 1],

[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],

[0, 0, 0, 0, 0, 0, 1, 0, 0, 0]]

check out what i did with lines 6 and 7

ok, i got it, thanks

according to this https://www.sciencedirect.com/science/article/pii/S0031320317301693 ..
a 4-connected component in a binary image is the maximum set of object pixels in the image such that any of two pixels in the set are 4-connected.
there are no 4 others, there can be 2 or much more pixels as a component.

why is a single and surrounded pixel considered as a 4-connected component? it says it should be a set of pixels...