[Retros] Add units: 14th update

[Mu-Tsun Tsai]

> The problem is, if the black king is at a7 and the last move was bx?a8=R# 

> then there's nothing wrong with it.


One way to solve this problem while still keeping the 1 rook + 8 queen 
formation should be the following, I think.

Q5Q1/3Q4/7Q/4Q3/2Q5/1Q6/5Q2/R7

That is, rotate the position 90 degree counter-clockwise.


Mu-Tsun Tsai