hm. not sure how we can change the leveling after a kata is accepted.

Yeah, I have not got a clue from the description what I've actually to do.

It badly needs a decent worked example.

I thought I understood it until this line:

The transformed first chromosome must appear at the first position of the tuple. the second one at the second position. Therefore :

Crossover([]int { 1 }, []int {1,2,3}, []int {10,11,12}) should be ([]int { 1,11,12 }, int[] { 10,2,3 })

What is this saying ?