[Event "USA-ch Seniors"]
[Site "Saint Louis"]
[Date "2022.07.10"]
[Round "4"]
[White "Christiansen, Larry Mark"]
[Black "Dlugy, Maxim"]
[Result "1-0"]
[WhiteElo "2577"]
[BlackElo "2513"]

1. d4 d5 2. c4 dxc4 3. e3 e6 4. Bxc4 Nf6 5. Nf3 a6 6. O-O b5 7. Be2 Bb7 8. a4 b4 9. Nbd2 Nbd7 10. Nc4 c5 11. Nfe5 Be7 12. Bf3 Bd5 13. Nc6 Qc7 14. Nxe7 Kxe7 15. b3 Bxc4 16. bxc4 Rab8 17. Bb2 Rhc8 18. Rc1 Kf8 19. Qb3 a5 20. Rfd1 Kg8 21. h3 h6 22. Rd2 Rd8 23. d5 e5 24. e4 Ne8 25. Bg4 Nd6 26. Bxd7 Qxd7 27. Bxe5 Nxe4 28. Re2 Nd6 29. Qg3 Nf5 30. Qg4 Rb6 31. Rce1 Rg6 32. Qf4 Re8 33. Kh2 Kh7 34. g3 f6 35. Bb2 Rxe2 36. Rxe2 Nd6 37. Re6 f5 38. Be5 Nf7 39. Qxf5 Nxe5 40. Qxe5 Rxe6 41. dxe6 Qe7 42. Qd5 b3 43. Qd3+ Kh8 44. Qxb3 Qxe6 45. Qb5 Qf5 46. Kg1 Qc2 47. Qxa5 Qc1+ 48. Kg2 Qxc4 49. Qa8+ Kh7 50. a5 Qa4 51. a6 c4 52. Qe4+ Kh8 53. Qb7 1-0