Added Eight Queens to the mix.
It's an age old puzzle that's existed in newspapers for as long as I can remember, and was alarmingly simple to add into the mix.

I'd like to do another Chess based puzzle, but it's proving a teensy bit more complex to generate, and I honestly don't think it's all that difficult to solve once it has done!
A puzzle for another day.

The Chess Pieces are drawn using the font "Chess Alpha", which I found on this page.