Hi - I'm sure there are folks here know the history of chess backwards and forwards. I am wondering how certain rules - like 'en passant' came to into existence and were widely adopted. I realize there are world wide organizations now, etc. but back in the day - who identified the the need for 'en passant' and then how was it adopted?
Same I guess for other rules that don't seem specifically "board-based" (i.e. obvious):
--the two square move option for a pawn's intial move
--castling
Finally, are the rules of chess still evolving? Is there any chance that some move or limitation might be adopted?
chessvariants.org
for the whole nine yards...they dont even call chess chess there !
I don't think any of the rules regarding the movement of the peices will change. They've been pretty static for a very long time and are beautifully balanced in their current form.
Discounting those rules that pertain to formal tournament play alone (i.e. time controls, when do you have to be seated etc.) the only rule I can see being a candidate for change is the 50 move rule. Tablebases have turned up, and will likely continue to turn up, forced wins that can be prevented by claiming a draw because they exceed the 50 moves so there may be an argument in favour of increasing the number of moves.
Even then I have my doubts....