[Event "38th Collado Villalba Op"] [Site "Collado Villalba ESP"] [Date "2021.08.29"] [Round "9.12"] [White "Hurtado Oldridge, F"] [Black "De Diego Ferrer, E"] [Result "0-1"] [WhiteElo "1930"] [BlackElo "1819"] [ECO "D31"] [Opening "QGD"] [Variation "semi-Slav"] [EventDate "2021.08.21"] [WhiteFideId "2215055"] [BlackFideId "2223147"] 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 f5 5. Bg5 Nf6 6. e3 Be7 7. Rc1 O-O 8. Qb3 h6 9. Bf4 Ne4 10. Bd3 Nd7 11. cxd5 cxd5 12. O-O g5 13. Be5 g4 14. Bc7 Qxc7 15. Nxe4 Qb6 16. Qd1 dxe4 0-1

[Event "38th Collado Villalba Op"] [Site "Collado Villalba ESP"] [Date "2021.08.28"] [Round "8.10"] [White "De Diego Ferrer, E"] [Black "Ciuro Munoz, R"] [Result "1/2-1/2"] [WhiteElo "1819"] [BlackElo "1960"] [ECO "A34"] [Opening "English"] [Variation "symmetrical variation"] [EventDate "2021.08.21"] [WhiteFideId "2223147"] [BlackFideId "2267888"] 1. c4 c5 2. Nc3 Nf6 3. e4 Nc6 4. g3 d6 5. Bg2 g6 6. Nge2 Bg7 7. O-O O-O 8. Rb1 Be6 9. d3 Qc8 10. Nf4 Bg4 11. f3 Bd7 12. a3 a5 13. Be3 Rb8 14. Qd2 e6 15. Nb5 Ne8 16. Ne2 b6 17. d4 cxd4 18. Nbxd4 Nxd4 19. Bxd4 Qxc4 20. Rfc1 Qa6 1/2-1/2