yeah bigboy i think you mean how many pawns have chained on a diagnal not rank(ranks are horizontal on the board),files are vertical,and diagonals are well diagnal.and as for a pawn chain i think my biggest one was like 5 although i don't think it lasted too long.
Hi!
How many pawns have you had connected on one rank? I've had 4 :P
(See move 12 here)