The Impossibility of Covering the Board With Dominoes

If I put this domino on the board, if I put it horizontally or vertically, I will always cover a black and white square. Because these are the same color, there's not an equal number of black and white squares. Therefore, I can prove to you that it is impossible to cover the board with the dominoes. We're starting to see how problem formulation and relevance realization are actually central to what it is for you being a real-world problem solver.