It's now time to complete the leg assembly. Place the two legs on a flat work surface and position the 20-inch cross brace between the legs. The exact position of the cross brace is not critical, but I found it works best to attach it about two inches up from the long point of the leg. Attach it at the same point on each leg with a couple of counter-sunk wood screws.
You may, at this point, wish to fill the screw holes in the leg assembly, and on the frame for that matter, with wood filler, but that is a matter of personal preference depending on how you intend to finish the non-playing surface portions of the game board.