Event: U20 Pan American Chess Championship OPEN 2025
Site: CEMINA Centro Militar Naval y Aeronautico - Asunción
Date: 2025-06-16
White: Melian, Juan Sebastian
WhiteTitle: FM
WhiteElo: 2358
Black: Ribeiro, Matheus Mendes Domingues
BlackTitle: FM
BlackElo: 2294
Result: 1/2-1/2
ECO: D33
Opening: Tarrasch Defense: Dubov Tarrasch
Variant: Standard

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3 Nf6 7. Bg2 cxd4 8. Nxd4 Bc5 9. Nb3 Bb6 10. Na4 d4 11. O-O O-O 12. Bg5 Re8 13. Re1 h6 14. Nxb6 axb6 15. Bxc6 bxc6 16. Bxf6 Qxf6 17. Qxd4 Qd8 18. Qc3 c5 19. Rad1 Qc7 20. a3 Ba6 21. Rd2 Rad8 22. Rxd8 Rxd8 23. f3 Qd7 24. Kg2 Qd6 25. Kf2 Qd7 26. Nc1 Qh3 27. Kg1 Rd5 28. Qc2 Qd7 29. Nb3 Qd6 30. Qc3 Qd7 31. Nc1 Rd1 32. Kf2 Rxe1 33. Kxe1 Qh3 34. Qe5 Qxh2 35. Nb3 Bb5 36. Kd2 f6 37. Qb8+ Kh7 38. Nc1 Qf2 39. Qxb6 Qd4+ 40. Nd3 Bxd3 41. exd3 Qf2+ 42. Kc3 Qd4+ 43. Kc2 Qf2+ 44. Kb1 Qxg3 45. Qxc5 Qxf3 46. Qc4 h5 47. a4 Qh1+ 48. Ka2 h4 49. a5 h3 50. a6 h2 51. a7 Qb7 52. Qh4+ Kg8 53. Qxh2 Qxa7+ 54. Kb1 g5 55. Qh6 Qf7 56. Kc2 Qc7+ 57. Kd1 Qf4 58. Qg6+ Kf8 59. Qh6+ Ke7 60. Qg7+ Kd6 61. Qf8+ Kd5 62. Qd8+ Kc5 63. Qc8+ Kd5 64. Qd7+ Kc5 1/2-1/2