I played a game on lichess and thought i was doing ok for a bit, but it went downhill fast. I can’t upload a GIF here, but a link the game on lichess is https://lichess1.org/game/export/gif/ZsZknVcD.gif
5 points
I don’t want to get too deep into technical jargon (because I don’t know any) but I think the problem was when you lost all your pieces.
4 points
Antichess, the truly anarchic variant, where en passant is really forced
3 points
Your mistake was taking their king, that makes it so you can’t checkmate them anymore.
2 points
ah yes a classic stalemate position