True !
What strange chess rules can you think up?

Someone who is totally blind who has a rating under 2000 is able to have another person beside him/her telling him/her where to move. If that person makes him/her do a bad move on purpose, he/she will have to do gangman style with a piece of chicken under each arm. then the blind person automatically retakes that move and does a better one.

The power horse moves 4-1 or 1-4 and the bendy bishop (if you only have one bish it can switch diags ie black to white and vice versa)plus on fly or die chess site there is a variant called informant chess where a pawn can promote on 7th rank but only up to and including a castle a queen only happens if 8th rank
I have one. Not about chess otb, but a chess.com thing.
I think all Class A players (OTB) should have a nice red "A" in front of their nick, so everyone knows they are considered by USCF to be "very strong" players, and able to play competitive games with USCF experts. Also, "A" is a very good letter, as it stands for the highest grade on a test, the highest level egg, and, of course, the best class player.

How about Night Riders. One knight of your choice can be a Night Rider. It moves like a normal knight, but can go as far as it wants in ant direction. So a Night Rider on A4 can move to B6, C8, C5, E6, G7, etc.
The queen can move any where on the board and capture accept for the king and queen while other pieces can only move like a pawn and can promote into it's normal form

This reminds me of a few rules we made at school. You could bash the other pieces off the board, and matches qiuckly became who could think of moves the quickest and who could think of the most powerful. Eventually, we decided that if you want to play crazy chess, you and your opponent must announce it before the game!

Whenever somebody captures a piece, they must take one dollar from the opponent. The opponent then has to get his money back, then when he gets his money back, the opponent gets to try to steal the other person's money. Check equals two dollars taken, and the winner gets to give their wallet to their opponent, take the money he took, call the police and say that your opponent stole your wallet and left his.

Here's a rule that I propose: due to the recent increase in cheating in WGM games, in the future all WGMs will have to play nude, so that it is harder for them to cheat.

Every time you capture a piece, you must run around the board and kick the piece to your hand then throw it around. The next piece is captured and juggled with the other piece. Keep juggling until you drop a piece. The dropped piece is put back on the board in a random position, and one of your pieces is eaten.

Allowing to use computers under a tournament game.
But under the game, it's technically not your computer, and you opponent can steal it, or maybe try a game of kickboxing with it.

You must sacrifice pawns when you can. Nah, that's not my rule. If you see somebody making a trap, you must walk on your hands until you got rid of the trap.
Of all games man invented , I think Chess is perfect and changing/adding any rules will only lead to deteriation.