I quite like this, but I think the description needs to be clearer. Perhaps include an example?

I enjoyed this. Hoping it comes back, as I just finished it before it went to Draft and then couldn't submit :S

The solution code has been posted instead of a kata description

This needs corner cases included in tests.

Specifically, the case where v2[0]==v1[0] is not tested for. I was able to pass the tests with a solution that would fail here

At the moment the tests aren't testing anything

It says "It is always whites move", which I took to mean it's white's turn next.

Is this Kata based on black not having turns?

Consider this case:

[
    [0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 1, 0],
    [0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 'B', 0, 0],
    [0, 0, 0, 0, 0, 0, 0, 0],
    [0, 0, 0, 0, 0, 0, 'W', 0],
    [0, 0, 0, 0, 0, 0, 0, 0]
]

White's only option is to move forward. Black then has to either move forward, or take white. In either case there's no way for White to get around the wall

What the Kata is doing is swapping every third odd value with every third even value

is there a reason why the knight isn't included?

I think this needs much clearer instructions.

• What is a forerunner?
• What is a dynasty?
• What is the function for?

When kata are based on a real-world problem I do like them to bear a good logical reality to the underlying story. I'm not sure that leaving your collection of umbrellas at the shop and expecting it to conveniently be there should you wish to pick one up next time you're there quite fits that criterion

you will need to use random numbers, usually generated by the random library. I'd suggest looking at the code for some other katas to get a feel for how it's usually done

This is going to need random rests

If this should be possible, and both absenses should be recorded in the results, then the tests need to make sure that this scenario is always covered

The random tests will sometimes contain duplicate entries in the attendance table. Can one employee be absent twice on one day?