[Event "ch-Frankfurt A"] [Site "Frankfurt"] [Date "2023.05.22"] [Round "4"] [White "Diehl, Stefan"] [Black "Calvi, Stefan"] [Result "0-1"] [ECO "A02"] [WhiteElo "1784"] [BlackElo "1947"] [PlyCount "106"] [EventDate "2023.04.24"] [EventType "swiss"] [EventCountry "GER"] 1. f4 Nf6 2. Nf3 c5 3. e3 g6 4. g3 Bg7 5. Bg2 Nc6 6. c3 O-O 7. O-O d5 8. Na3 Rb8 9. d4 c4 10. Ne5 Bf5 11. b3 cxb3 12. axb3 Be4 13. Bd2 Bxg2 14. Kxg2 Ne4 15. c4 Nxe5 16. fxe5 f6 17. exf6 exf6 18. Nb5 a6 19. Nc3 Nxc3 20. Bxc3 Qe7 21. Qd3 Rfe8 22. Rfe1 Rbc8 23. Bd2 f5 24. Ra5 dxc4 25. bxc4 h5 26. c5 h4 27. Ra2 Qf7 28. Rc2 Qd5+ 29. Kh3 g5 30. e4 g4+ 31. Kg2 h3+ 32. Kf1 fxe4 33. Qc4 Qxc4+ 34. Rxc4 Rcd8 35. Be3 Rd5 36. Ke2 Red8 37. Rd1 Kh7 38. Rb4 R8d7 39. Bf2 Kg6 40. Ke3 Rxc5 41. Kxe4 Rc2 42. Rb6+ Kh7 43. Bg1 Bh6 44. Kf5 a5 45. Kxg4 a4 46. Rdb1 a3 47. Rxb7 Rxb7 48. Rxb7+ Kg8 49. Ra7 a2 50. Kxh3 Bd2 51. d5 Bc3 52. d6 a1=Q 53. d7 Qf1+ 0-1