So I have this problem: enter image description here and the answers I can choose between are:

a) 1

b) k

c) k+1

d) 2k

I am quite new to rook numbers and rook polynomials so I might be missing something obvious. I have no idea how to start solving this. So far I have simply just tried to draw various k x k chessboards and just simply guessed and tested. Through that testing I have come to the conclusion that the answer is k but I might be completely wrong.

Is there a more methodical way to solve this? Any help is appreciated!



Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.