Qweedo and Thighman both are OMFS applicants
Eygpt, Indonesia, and New Foundland are all OMFS residencies where Qweedo and Thighman interviewed at
Qweedo ranked
Indonesia #1
Eygpt #2
New Foundland #3
Thighman ranked
Indonesia #1
New Foundland #2
Eygpt #3
Eygpt ranked
Thighman #1
Qweedo #2
Indonesia ranked
Qweedo #1
Thighman #2
New Foundland ranked
Qweedo #1
Thighman #2
Computer matching starts:
Computer will first attempt to match Qweedo
-since Qweedo's #1 choice is Indonesia, the computer will fill that spot for now
-now the computer will look at who Indonesia ranked #1?
-to computer's surprise both Qweedo and Indonesia ranked each other #1, we have a "MATCH" for Qweedo and Indonesia residency
Computer will now attempt to match Thighman
-Thighman's #1 choice is also Indonesia
-but since Indonesia's #1 is Qweedo, Thighman is out of luck
-computer then will go to Thighman's 2nd choice, which is New Foundland
-New Foundland wants Qweedo as their #1 choice, but Qweedo is already taken by Indonesia (Qweedo is off the table)
-computer will then go to New Foundland's 2nd choice, which is Thighman
-since both Thighman and New Foundland's first choice is not available and they both just happen to want one another as their 2nd choice, we have a "MATCH"
Now the poor Egypt residency is "UNMATCHED" because both applicants "matched" before they even got to Egypt in the ranking order
-Qweedo wanted Indonesia as #1 and Indonesia wanted Qweedo as their #1 (Qweedo's gone)
-Thighman also wanted Indonesia as #1, but Qweedo took it, and then wanted New Foundland as #2, just so happens that New Foundland couldn't get their first choice either and have to settle for their #2 choice, Thighman (Thighman's gone)
Egypt is left with no applicants left.
If Thighman would've ranked Egypt #2 instead of New Foundland #2, then Thighman would've matched at Egypt because Egypt ranked Thighman #1
Qweedo - Indonesia
Thighman - New Foundland
Egypt = pissed off and will attempt post-match via phone calls and emails
This is only one scenario of what match can do. Hope it helps.