[Event "URS-ch07 Final"]
[Site "Moscow"]
[Date "1931.10.30"]
[Round "7"]
[White "Mazel, Isaak"]
[Black "Riumin, Nikolay Nikolaevich"]
[Result "1/2-1/2"]
1. c4 e5 2. Nc3 Nc6 3. Nf3 g6 4. e4 Bg7 5. d3 Nge7 6. Be2 O-O 7. O-O d6 8. Be3 f5 9. Nd5 f4 10. Bd2 Bg4 11. Rc1 Bxf3 12. Bxf3 Nd4 13. Bc3 Nxf3+ 14. Qxf3 Kh8 15. Rfd1 Ng8 16. Nb4 a5 17. Nc2 c5 18. a4 Nf6 19. Qe2 Qd7 20. b3 1/2-1/2