1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 Qxe7 7. f4 a6 8. Qd2 c5 9. Nf3 Nc6 10. g3 b5 11. Bg2 Bb7 12. O-O O-O 13. Rad1 Nb6 14. b3 c4 15. f5 b4 16. f6 gxf6 17. exf6 Qxf6 18. Ne2 c3 19. Qe3 Qd8 20. Qh6 f6 21. Bh3 Bc8 22. Nf4 Qe7 23. Rde1 Nd8 24. Nh5 Ra7 25. Nh4 Nd7 26. Rxe6 Nxe6 27. Bxe6+ Rf7 28. Qg7#

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Source(s): Irish Independent.

Reference(s): Cox centenary: Challenge match with O'Hanlon, IRLchess, December 28, 2012.