I apologise, I am new to this and you are "stuck" with my comments. Pls. realise that this is *my* learning curve more than yours!
I like your choice of subject, I don't understand why you used that title for the image in this challenge. I would have thought "black & white" ... or is that too obvious? :-).
I like the backdrop but I am not convinced of the surface the 2 knights stand on and how it blends into the backdrop. I feel the lighting on the white king is good, but I don't think it's right on the black king. I do like the placemnet of your subject for this image.