New chess with a 11×7 board with a king, a rook, a one piece jumping rook, a knight, a bishop and a boar( moves 2 any way and can jump).They will have 13 pawns and only 6 can promote. A Queen that can only be promoted. Both rook can Castle. End up with a win by capturing king.
Post your chess variant ideas here!

I found a fun combo atomic fog but replace the king with a knight or a non royal piece to remove checkmate

2 player king safety: the initial setup is almost like regular chess, but there are no queens (you can only queen a pawn), and the kings are out in the open: for example, the white one on f4, and the black on c5. The pieces on d4 and e4 (d8 and e8 for black) may be ferz, wazir, mann, [non-royal king) alibaba, extra bishops or knights, but no queen or rook in the middle. Of course, there's no casting, but other than that the rules are just like in regular chess.

On your first move, make out and write down a legal move on a piece of paper.
On your turn, you must play the move you write down, if it’s still legal, then write down another. If it became illegal, then you can play any move, but you still have to write down another

1221211221121221211212211221211221121221122121121221211221121221
Etc

I have an idea: Chess, but all the pawns are rooks. Same rules, same play, just pawns are replaced with rooks.

Talking about chess variants, this looks like the place to let you know about mine, Puzzle Board Chess. You can check it out for free on Steam:
https://steamcommunity.com/sharedfiles/filedetails/?id=2392180925You can get the Puzzle Board Chess game through my website, www.metadreamsll.com.
More on my YouTube channel:
https://youtu.be/kF90Yg5Xm3g?si=C7MpSQCh9Li4zaj3
Cheers!
I want to recommend to Chess.com a new variant I call Double Chess960 where white has a different chess960 starting position than black's chess960 starting position. I fancy this as the ultimate need for complication and fighting chess.
Also is it possible to include Chess960 on Stats https://www.chess.com/stats