Intersect Contribs
Wikimedia Tool Labs — Pietrodn's tools.

This tool intersects the contributions of two or more users on a given WMF project, showing the pages edited by all of them.
It can help in discovering sockpuppets.

Update: On 2016-04-05 I updated the tool to support the intersection of the contributions of multiple users. Unfortunately, to handle this in a reasonable way, I had to change the format of the URL parameters. The old URL format ("user1" and "user2") is still supported, but eventually this will be removed.
This means that existing links to the tool referring to a specific couple of users will be broken.
:
Elapsed time: 3 s

Results

28 results found.
  1. Chief of the Army Staff (Pakistan) (10 total edits)
  2. China–Pakistan Economic Corridor (8 total edits)
  3. Hamid Gul (6 total edits)
  4. Islamic State – Khorasan Province (4 total edits)
  5. List of presidents of Pakistan (6 total edits)
  6. List of prime ministers of Pakistan (3 total edits)
  7. Marium Mukhtiar (4 total edits)
  8. Operation Zarb-e-Azb (5 total edits)
  9. Pashtun Tahafuz Movement (33 total edits)
  10. President of India (42 total edits)
  11. Talk:Regional power (26 total edits)
  12. User talk:Ad Orientem (7 total edits)
  13. User talk:Adamgerber80 (326 total edits)
  14. User talk:Bbb23 (7 total edits)
  15. User talk:Diannaa (16 total edits)
  16. User talk:Mar4d (2 total edits)
  17. User talk:Onel5969 (2 total edits)
  18. User talk:Ponyo (9 total edits)
  19. User talk:Samee (3 total edits)
  20. Wikipedia:Administrator intervention against vandalism (135 total edits)
  21. Wikipedia:Administrators' noticeboard (10 total edits)
  22. Wikipedia:Administrators' noticeboard/Incidents (19 total edits)
  23. Wikipedia:Arbitration/Requests/Enforcement (10 total edits)
  24. Wikipedia:Reliable sources/Noticeboard (24 total edits)
  25. Wikipedia:Requests for page protection (271 total edits)
  26. Wikipedia:Requests for permissions/Autopatrolled (3 total edits)
  27. Wikipedia:Requests for permissions/Pending changes reviewer (4 total edits)
  28. Wikipedia:Requests for permissions/Rollback (3 total edits)