> It was used by Kramnik to test the hypothesis whether no-castling chess was viable (basically chess, but disallowing castling).
Viable in what way? That it's advantageous to never castle if an engine learns to play with that directive? Or that it still makes for a fun game with that new rule?
Viable in what way? That it's advantageous to never castle if an engine learns to play with that directive? Or that it still makes for a fun game with that new rule?