[Event "34th Zalakaros Open 2015"] [Site "Zalakaros HUN"] [Date "2015.05.17"] [EventDate "?"] [Round "4.25"] [Result "1/2-1/2"] [White "Volodymyr Onyshchuk"] [Black "Maria Efimenko"] [ECO "B40"] [WhiteElo "2669"] [BlackElo "2262"] [PlyCount "60"] 1. e4 c5 2. Nf3 e6 3. b3 a6 4. Bb2 d5 5. exd5 exd5 6. d4 Nf6 7. Bd3 Nc6 8. O-O Be7 9. dxc5 O-O 10. a3 Bxc5 11. b4 Bd6 12. h3 Nh5 13. c4 dxc4 14. Bxc4 Nf4 15. Qb3 b5 16. Qc3 Ne5 17. Nxe5 bxc4 18. Re1 Qg5 19. Qg3 Qxg3 20. fxg3 Bxe5 21. Bxe5 Nd3 22. Re3 Re8 23. Bd4 Rxe3 24. Bxe3 Bb7 25. Nc3 Re8 26. Ba7 h5 27. h4 Re7 28. a4 Nxb4 29. Bc5 Nc2 30. Ra2 1/2-1/2