In part high accuracy means that the opponents are approximately of equal strength. The way people win games in chess is by complicating the position so much th

In part high accuracy means that the opponents are approximately of equal strength. The way people win games in chess is by complicating the position so much that it forces your opponent to make a mistake while you are able to handle it. If the accuracy is high, not only it means that the players are good, it also means that they don’t ask each other serious questions. Put any human against Stockfish and, I am sure, their ACPL will increase dramatically.