[Site "?"] [Round "0"] [White "Olafsson, Fridrik"] [Black "Sigurdsson, Sigurdur"] [Result "1-0"] [ECO "D55"] [Opening "QGD: 6.Nf3"] 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 c6 7. Bd3 Bb4 8. Qc2 Nbd7 9. Bxh7+ Kh8 10. Bd3 Qc7 11. Bxf6 Nxf6 12. h4 g6 13. Ne5 Kg7 14. g4 dxc4 15. Bxc4 c5 16. Bd3 Rh8 17. Bxg6 fxg6 18. Qxg6+ {#r} 1-0

[Event "Skakthing Reykjavikur 1947"] [Site "?"] [Round "0"] [White "Olafsson, Fridrik"] [Black "Finnbogason, Thorvaldur"] [Result "1-0"] [ECO "D53"] [Opening "QGD: 4.Bg5 Be7 5.e3"] 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 c6 6. Nf3 O-O 7. Bd3 Nbd7 8. O-O b6 9. Qc2 g6 10. Bxf6 Nxf6 11. Ne5 Qc7 12. f4 Bd6 13. Rf3 Ba6 14. cxd5 Bxd3 15. Qxd3 cxd5 16. Rh3 a6 17. Qe2 Bxe5 18. fxe5 Ne8 19. Qf2 Qe7 20. e4 f6 21. Qh4 Rd8 22. Rf1 Rd7 23. exd5 exd5 24. Rhf3 f5 25. Qxe7 Rxe7 26. Nxd5 Rd7 27. Nf4 Nc7 28. Rd3 Rfd8 29. Rfd1 Kf7 30. d5 {#r} 1-0