[Event "URS-ch25 Semifinal"]
[Site "Sverdlovsk"]
[Date "1957.11.30"]
[Round "13"]
[White "Gipslis, Aivars P"]
[Black "Aronson, Lev Abramovich"]
[Result "1/2-1/2"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nh6 7. Be2 d6 8. Qd2 Ng4 9. Bxg4 Bxg4 10. O-O O-O 11. Nc3 Bd7 12. f3 f5 13. Nxc6 bxc6 14. c5 Be6 15. cxd6 Qxd6 16. Qxd6 exd6 17. Rad1 1/2-1/2