Yesterday I played several games following the Alfonso's rules with my chess partner and I'd say, they are much more equal and challenging then Bell's rules. I'd strongly suggest to either switch completely to them or at least really make two variants, "Bell's Alquerque" and "Alfonso's Alquerque".
(hide) If you want to find an opponent with similar playing skills to your own look in the Ratings page of the type of game you want and find a player with a similar BKR. (pauloaguia) (show all tips)