Q14

[KelleyH377]

Which one of the following is a complete/accurate list of the positions in which the tunnel could be placed?

In my board, I brute forced a few boards for the sake of prior work and had one board of WZVSTR. In also having boards that showed T as 6th, 4th, 2nd and 1st, I chose the answer that most emulated my boards, (E). The key is saying the correc answer is (C) 1st, 2nd, 3rd, 4th, 6th.

Can someone elaborate as to why T cannot go 5th? Thanks!

[christine.defenbaugh]

Thanks for the question, KelleyH377!

My answer key says the correct answer for this question is B. Are you certain you're looking at the right section in the key?

T can absolutely go 5th! You're not mistaken there. However, you also have in your list that you had a board where T went 4th, and that is not allowed.

If you were to put T 4th, then S would need to be 3rd, leaving you with this:

__ __ S T __ __

Since [WZ] has to go as a block in either the front or the back, that leaves R and V to take the other block - and they are not supposed to touch one another!

Same problem happens if you put T in 3rd, but all other spots for T are workable. Hence the correct answer (B) giving: first, second, fifth, sixth, as the acceptable spots!

Does that help clear things up a bit?