OK.
On my tickets, there was a 3 digit # with an X after it.
9/12 - Soldier Field - Sec. 443 Row 6 - 312X - decent view, some claw in the way. Example - YouTube - U2 City Of Blinding Lights Soldier Field Chicago 9/12/09
9/13 - Soldier Field - Sec. 441 Row 22 - 321X - better view but much...