[Event "30th Donau Open 2021"] [Site "Aschach AUT"] [Date "2021.12.27"] [Round "3.9"] [White "Haas, Michael2"] [Black "Zwettler, Gerald Adam"] [Result "1-0"] [WhiteElo "2168"] [BlackElo "1821"] [ECO "E01"] [Opening "Catalan"] [Variation "closed"] [EventDate "2021.12.26"] [WhiteFideId "1629514"] [BlackFideId "1646575"] 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Bb4+ 5. Nd2 O-O 6. Nf3 c6 7. O-O Bd6 8. Qc2 Re8 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 h6 12. Ne5 f5 13. Qe2 Nd7 14. Bf4 g5 15. Qh5 Nxe5 16. Bxe5 Bxe5 17. dxe5 Kg7 18. Rad1 Qe7 19. Rd6 Bd7 20. Rfd1 Rad8 21. g4 Bc8 22. gxf5 Rxd6 23. f6+ Kg8 24. fxe7 Rxd1+ 25. Qxd1 1-0