Can there be 18 queens at any given time in a chess game? I mean, it looks a bit possible, given that if you can promote all 8 pawns and keep your original queen alive, you have 9 queens...
Yes, it is possible to get 18 queens on the board. The key is to use doubled pawns to your advantage.
Here is a game posted from Stackexchange that gives an example:
Can there be 18 queens at any given time in a chess game? I mean, it looks a bit possible, given that if you can promote all 8 pawns and keep your original queen alive, you have 9 queens.
You also have to surround the king with pieces so that he doesn't get checkmated.
So here's my best attempt at getting 18 queens in a standard chess game.
Okay, I got 9 queens before checkmate. You can put in the comments if you manage to get 18 queens.