[Event "USA-ch"]
[Site "Oberlin"]
[Date "1975.??.??"]
[Round "1"]
[White "Mednis, Edmar John"]
[Black "Grefe, John Alan"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Be7 7. O-O O-O 8. Be3 Nc6 9. f4 a6 10. a4 Qc7 11. Qe1 Nxd4 12. Bxd4 e5 13. fxe5 dxe5 14. Qg3 Bc5 15. Bxc5 Qxc5+ 16. Kh1 Kh8 17. Rxf6 gxf6 18. Qh4 Rg8 19. Qxf6+ Rg7 20. Qd8+ 1/2-1/2