The winning move of alphago's victory over lee sedol is often unexpected. experts commented: "this move is very shocking, like a wrong move." lee sedol also played a chess move that had never been done under high pressure, and considered it a "golden move." "one step to defeat alphago, won the only game. hassabis said: "i think this is a historical move. this step confused alphago, and the decision tree miscalculated. through this example, we can see how much philosophy is contained in go. and top ai experts also spent their entire lives finding the golden move. .”