Even in this out of focus shot you can surmise that Bill is concentrating. Othello is devilishly easy to learn. The strategy is a bit more complicated. And if you don’t pay attention you can easily lose. I’ve played the computer and it’s often touch and go. It took me a while to get the strategy and win >50%. David got it. He was beating Bill consistently. And then, Bill tried to win. And he lost. Imagine getting beat by your pipsqueak grandson. He stopped playing. He didn’t want to get beat anymore. He? The loser would be Bill.