What are your favorite chess variants?

Seirawan and Gothic Chess. Shuffled positions as well. Wish they add the option to select shuffled starting positions.

Additionally, i wish that they might add the posibility to select random castling flags. There are 16 possible permutations of castling rights. Handling them out in addition to 960 might be a plausible idea id expect. What is your take on the idea

3 check

chaturaji and 4pc teams :>

0)Real life chess

1)Fog of war chess

2)Bughouse

3)Crazyhouse

4)960

5)Bliz

1. Custom Variant- Double Chess 960- where White has a different starting position from Black. Simple- Same chessboard, same pieces and same rules as Chess 960. That's a possible combination of 960x960=921,600. The Ultimate Chess Complication.

2. Custom Clock- Repeating Time- I got the idea from Chronos and it's called Final Delay. My Idea is from 1 to 30 seconds.
example: repeating 5 sec or 10 sec or 15 sec or 30 sec- repeating and does not accumulate. The player thinks, makes a move before time runs out and the time goes back to what was set initially. The game will continue until Checkmate, 3-Fold Repetition, 50-Move Rule, Resignation, Draw Offer and of course Time Runs Out.