I Open Promesas Txantrea

Pamplona, from 2026-01-30 to 2026-03-15

Chief Arbiter: Adrian Ortega
Rate of play: 90 minutes + 30 seconds per move

Games of round 4

[Event "I Open Promesas Txantrea"]
[Site "?"]
[Date "2026.02.13"]
[Round "4"]
[White "Ochoa Aldaz, Mikel"]
[Black "Rada Colado, Miguel"]
[Result "1-0"]
[PlyCount "71"]

1. Nf3 c5 2. e3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. d4 cxd4 7. exd4 O-O 8. Re1 d5 9. Nbd2 Bd7 10. Nb3 Qc7 11. Nc5 Rfe8 12. Nxd7 Qxd7 13. h3 Rac8 14. Ne5 Qc7 15. Bf4 Qa5 16. a4 a6 17. Bxc6 bxc6 18. b4 Qb6 19. a5 Qb7 20. Nd3 Ne4 21. Nc5 Nxc5 22. bxc5 Qd7 23. Rb1 h5 24. Rb6 Ra8 25. Qd3 Ra7 26. Rxa6 Rxa6 27. Qxa6 f6 28. Qb6 e5 29. Be3 exd4 30. cxd4 f5 31. a6 Ra8 32. Qb7 Qd8 33. Rb1 Bf6 34. a7 Qc8 35. Qxc8+ Rxc8 36. Rb8 1-0
[Event "I Open Promesas Txantrea"]
[Site "?"]
[Date "2026.02.13"]
[Round "4"]
[White "Martin Donamaria, Jose J."]
[Black "Antonanzas Fernandez, Mario"]
[Result "0-1"]
[PlyCount "66"]

1. e4 d6 2. d4 Nf6 3. Bd3 Nbd7 4. Nf3 g6 5. O-O Bg7 6. c4 O-O 7. Nc3 c6 8. Bg5 Qc7 9. Qd2 Re8 10. Bh6 Bxh6 11. Qxh6 e5 12. d5 Ng4 13. Qg5 Kg7 14. h3 Nc5 15. Be2 Nf6 16. Qe3 Qb6 17. b3 Ncxe4 18. Nxe4 Qxe3 19. fxe3 Nxe4 20. dxc6 bxc6 21. Rad1 a5 22. Kh2 a4 23. b4 Be6 24. Rc1 a3 25. Bd3 Nf6 26. Be2 Ra4 27. Rc3 Rb8 28. Rb1 Raxb4 29. Rxb4 Rxb4 30. Rxa3 Bxc4 31. Bxc4 Rxc4 32. Nd2 Rc2 33. Rd3 Rxa2 34. 0-1

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