the method is as follows: 1. open wechat, enter the wechat group chat interface, and enter the name and keywords of the puzzle group in the search bar to find the group chat.

2. Click to enter the group chat, which has started the invitation function. You can join the group chat by entering the invitation code and scanning the QR code of the invitation link.

3. The invitation function is not enabled in this group chat. You need to get an invitation from the group owner and administrator before you can join this group chat. You can request to join the group chat by sending a private message to the group owner and administrator and leaving a message in the group chat.

4. You have been invited by the group owner and administrator. After clicking to enter the group chat, you need to reply a confirmation message in the group chat to confirm your identity and join the group chat.