As of now there are 8 variants in Lichess.
Progressive Chess is a unique variant which I had been playing with my chess school friends back when I was a kid learning chess.
This is how it worked:
White plays 1 move initially followed by black who plays 2 moves and then white playing 3moves going on in arthematic progression upto 10. Usually the game ends in move 6 or 7. Also once a check is given, no more moves could be made by the former.
It would be great if Lichess could intiate this variant.
If you want to program it, knock yourself out.
It's not "unique" at all. It's been around a long while.
A few weeks after a major server adds support for progressive, someone will finish solving it. It is obviously easier to solve than giveaway chess was.
I do wonder which color wins though, it is not at all obvious.
@ProgrammerAngrim Exactly. It will not get much popularity at all since I believe Stockfish will solve the game in less than a week.
What's giveaway chess? @ProgrammerAngrim
@Hendersen187 giveaway chess is also know as antichess on here, or suicide chess on FICS. Solving it took a couple of years with amazingly good hardware and specialized software in 2015.
You can't post in the forums yet. Play some games!