Finish the Eight Queens

Author: @Ondra77

Published Difficulty: Medium

Algorithm X Complexity: Straightforward

Strategy

It should be fairly simple to use your code from n Queens to create a solution for this puzzle. You need to limit the possible actions so that Algorithm X is forced to place queens on board locations prefilled with a Q. The hard way to do that is to completely restrict the actions to only locations on the board where a queen could be placed. I will let you figure out the easier way!