Think of it this way. In order to win, you must leave six pieces after taking the pieces, which will ensure that no matter how your opponent takes the pieces at 1-5, you can finally get the100th piece, that is, you will get the 94th piece. And so on, you only need to get 88, 82, 76, 70, 64, 58, 52, 46, 40, 34, 28, 22, 16, 10, 4. Mastering this law is actually the first to win every battle. Conclusion: The most boring game.