[Event "Mar del Plata International-18"]
[Site "Mar del Plata"]
[Date "1955.03.27"]
[Round "14"]
[White "Idigoras Guisasola, Gregorio"]
[Black "De Greif, Boris"]
[Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 10. d5 exd5 11. Ne1 d4 12. Qxd4 Bf6 13. Qd3 Bxg2 14. Nxg2 Kh8 15. Rd1 Na6 16. h4 Nc5 17. Qc2 Qe7 18. Rb1 Rae8 19. b4 Ne4 20. Bb2 f4 21. Nxf4 Bxb2 22. Rxb2 Rxf4 23. gxf4 Qxh4 24. e3 Nxf2 25. Qxf2 Qg4+ 26. Kh2 Qxd1 27. f5 Qh5+ 28. Kg2 Qg5+ 29. Kf1 Qxe3 30. f6 Qxf2+ 31. Rxf2 gxf6 32. Rxf6 Kg7 33. Rf4 Rf8 34. Rxf8 Kxf8 35. Kf2 Kf7 36. Kf3 Kf6 37. Kf4 h5 38. Kg3 h4+ 39. Kxh4 Ke5 40. Kg4 d6 41. b5 Kd4 42. Kf4 Kxc4 43. Ke4 Kxb5 44. Kd5 a5 45. Kd4 c6 0-1