I stand corrected!
DanFraser is right, there are several versions.
.
Although I think blowing the bridges is a lot easer than putting the wires in the holes, that's hard! It took about five minutes to blow the bridges but at least an hour trying to put those tiny wires into the holes. For me to put one wire into the hole took many many tries. I felt like giving up after awhile.
Although it might be easer for others, I guess?