If there's a FM in your city, he may perhaps have some traits, that limit his movement so much, he cannot even sally forth to attack

the auto_win is a cheat, that works as follows.

pres the button under ESC and left of 1 on your keyboard,
an console shoud pop up
write inside : auto_win attacker (if you are attacking), and when you will click on auto-resolve you will win even if you are 1:1000.

But i guess your problem should be with the FM not being able to move, so this advice won't help you