I was playing chess against the computer and captured black’s queen. All of a sudden, a black pawn appears out of thin air, one space behind the captured queen for a total of nine pawns, and moves multiple squares diagonally.


The computer calls this move “P @ e6,” but after half an hour of scouring the internet, I could not figure out what that means.

1. |  h2 - h4 | Nb8 - c6 |
2. |  e2 - e4 |  e7 - e5 |
3. | Rh1 - h3 | Qd8 × h4 |
4. | Rh3 - h4 |   P @ e2 |

How did this happen?

  • 1
    That first move should be h2-h4, not h2-e4, right?
    – D M
    Nov 27, 2020 at 3:46

1 Answer 1


You were playing the chess variant called Crazyhouse. In this variant you can place pieces you captured, as one of your color anywhere on the board, instead of a normal move.

I don't know the software you are using, but on Lichess the variant can be selected in the "Create a game" dialog. There should be something similar in your application.


  • Will mark as accepted when I'm allowed to. I wish I knew how to turn that off. Nov 26, 2020 at 20:26
  • @gen-ℤreadytoperish I've added some more info, maybe that helps.
    – Sleafar
    Nov 26, 2020 at 20:32
  • 3
    Addition: As you play with a 3D board, what you saw as the pawn moving along the h5-e2 diagonal very likely was just the animation of the "@"-move which coincidentally went over that diagonal.
    – Annatar
    Nov 27, 2020 at 7:39
  • 2
    This seems to be the Chess.app that comes with macOS. Also in this one, you choose the chess variant when you create a new game (from the menu, or pressing cmd-N).
    – Dronir
    Nov 27, 2020 at 10:35
  • 1
    I would add that White has a queen "in hand" (as can be seen on the right hand side of the board), further indicating it is Crazyhouse.
    – Allure
    Nov 27, 2020 at 11:01

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.