It's the humans, programmers and spectators alike, who can't refrain from ill-mannered kibitzing: "If you'd just kept on where you were, you'd be fine.
電腦下起棋來，走一步算一步，還真有「起手無回」的大丈夫架勢；只是旁觀的人類，包括它的主人，都忍不住「觀棋而語」：「進一步就好了，怎麼走那邊，繞大圈子嘛。」