I think it would be better if at least one detailed(with all iterations) solution was given in the description

-- Anticheat to avoid hard-coded solutions without having to generate random tests ...

Nope. You'll have to write some random tests.

Shouldn't the input size be enlarged too?

should NOT have a solution when starting outside the chessboard area

Input validation is not mentioned, so why?

Thanks for Go translation :)

I'd suggest adding more tests including random tests.
For random tests, maybe looking at @g964's translations will be helpful.
Ginkgo does spec permutation (for top level contexts), so you can also have something like this:

var _ = Describe("0-Point Crossover", func() {
})
var _ = Describe("1-Point Crossover", func() {
})
var _ = Describe("2-Point Crossover", func() {
})
var _ = Describe("3-Point Crossover", func() {
})
var _ = Describe("N-Point Crossover", func() {
})

And the order of execution will be shuffled, e.g., N-Point,2-Point,0-Point,1-Point,3-Point etc.