[Event "URS-ch25 Quarterfinal"]
[Site "Minsk"]
[Date "1957.05.22"]
[Round "18"]
[White "Ostrauskas, A"]
[Black "Gipslis, Aivars P"]
[Result "0-1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 O-O 8. O-O Nc6 9. Nf3 Qc7 10. Qe2 Ng4 11. h3 Nd4 12. hxg4 Nxe2+ 13. Nxe2 b6 14. Bf4 Bd6 15. e5 Be7 16. Rfd1 Bb7 17. a3 Rad8 18. Rd2 d6 19. Rad1 Bxf3 20. exd6 Bxd6 21. Bxd6 Rxd6 22. gxf3 Rfd8 23. Kg2 h6 24. b4 Kf8 25. Nc1 Qc6 26. Be4 Rxd2 27. Rxd2 Qc7 28. Rc2 Rd1 0-1