[Event "USA-ch Seniors"]
[Site "Saint Louis"]
[Date "2021.07.16"]
[Round "1"]
[White "Christiansen, Larry Mark"]
[Black "Benjamin, Joel"]
[Result "1-0"]
[WhiteElo "2567"]
[BlackElo "2506"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 O-O 6. Nf3 c5 7. dxc5 Qa5 8. Bd3 Qxc5 9. Qe2 Bg4 10. Be3 Qa5 11. O-O Nc6 12. Rac1 Rfc8 13. Kh1 Nd7 14. Qf2 Nb4 15. Bb1 Bxf3 16. Qxf3 Rxc4 17. e5 Nc6 18. Rcd1 Re8 19. Qe2 Rxc3 20. bxc3 Qxc3 21. Bg1 Kf8 22. Rf3 Qa5 23. Rh3 Nc5 24. Rxh7 dxe5 25. f5 gxf5 26. Qh5 Kg8 27. Bxf5 e6 28. Qg5 1-0