Con ECO = B52

Sisniega - Amador

Mundial Estudiantil XXII Ciudad México 1977

Siciliana B52

[Event "WchT U26 fin-A"]
[Site "Mexico City"]
[Date "1977.08.20"]
[Round "7"]
[White "Sisniega Campbell, Marcel"]
[Black "Rodriguez Cespedes, Amador"]
[Result "1/2-1/2"]
[ECO "B52"]
[WhiteElo "2455"]
[BlackElo "2395"]
[Annotator "Amador"]
[PlyCount "113"]
[EventDate "1977.08.07"]
[EventType "team-tourn"]
[EventRounds "9"]
[EventCountry "MEX"]
[SourceTitle "EXT 2003"]
[Source "ChessBase"]
[SourceDate "2002.11.25"]
[SourceVersion "1"]
[SourceVersionDate "2002.11.25"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4 (5. O-O Nc6) 5... Nc6 6. d4 cxd4 7. Nxd4 Nf6 8. Nc3 e6 9. O-O Be7 10. Nc2 $5 (10. Be3) (10. b3) 10... O-O 11. Bf4 Rfd8 12. Qe2 Ne5 13. Rfd1 Qc7 14. Ne3 a6 (14... Rac8 $11) 15. Rac1 Ng6 16. Bg3 Qa5 17. c5 $1 Qxc5 (17... dxc5 18. Nc4 Qb4 19. a3 Qb3 20. Na5 Qb6 21. Nc4 {Forçant la nulle}) 18. Ncd5 Qb5 19. Nxe7+ Nxe7 20. Qxb5 axb5 21. Bxd6 Nc6 22. e5 Ne4 23. a3 f6 24. f3 Nxd6 25. exd6 Ra4 26. Rc5 Nd4 27. Nc2 b6 28. Nxd4 Rxd4 29. Rxd4 bxc5 30. Rd3 c4 31. Rd4 Kf7 32. Kf2 Ke8 33. Ke3 Kd7 34. a4 e5 35. Rh4 Kxd6 36. axb5 Kd5 37. Rxh7 Rd7 38. Kd2 Kc5+ 39. Kc2 Kxb5 40. h4 Rd4 41. h5 Rh4 $1 42. Kc3 f5 (42... e4 43. fxe4 Rg4 44. Kd4 Rxg2) 43. Rxg7 Rxh5 44. Re7 f4 45. Rd7 Kc5 46. Rd8 Rg5 47. Rc8+ Kb5 48. Rxc4 Rxg2 49. Re4 Rf2 50. Rxe5+ Kc6 51. Kd4 Rxf3 52. Ke4 Re3+ 53. Kxf4 Rxe5 54. Kxe5 Kc5 55. Ke4 Kc4 56. b4 Kxb4 57. Kd4 1/2-1/2