I tried playing against a real chess program. The friggin' thing never made a mistake, of course. Neither did I, at least not anything obvious. We exchanged evenly as time went by, losing most of our fighting pieces. The upshot of the game was I had a rook and a king and one pawn left, the other side had a rook and a king and 4 pawns, and I was clearly heading for eventual defeat when one of those pawns advanced. It wore me out on the pawns.