[Event "Olympiad-04"]
[Site "Prague"]
[Date "1931.07.24"]
[Round "17"]
[White "Christoffersen, Hans Christian"]
[Black "Johner, Hans"]
[Result "0-1"]
1. d4 Nf6 2. Nd2 d5 3. Ngf3 Bf5 4. e3 e6 5. Be2 Nbd7 6. O-O Bd6 7. c4 c6 8. b3 Ng4 9. Bb2 Qb8 10. g3 Ngf6 11. Nh4 Bh3 12. Ng2 h5 13. f4 Ng4 14. Bxg4 Bxg4 15. Qe1 Bb4 16. a3 Bxd2 17. Qxd2 Nf6 18. Rac1 Ne4 19. Qe1 Bh3 20. Rc2 Qd6 21. a4 f5 22. c5 Qe7 23. b4 Kf7 24. Qd1 Rag8 25. b5 g5 26. fxg5 Qxg5 27. Rf4 h4 28. Rxe4 fxe4 29. Rf2+ Ke7 0-1