[Event "Villa Alemana op"]
[Site "Villa Alemana"]
[Date "2020.02.22"]
[Round "2.3"]
[White "Castro Salgado, Pablo Alonso"]
[Black "Mella, Leonardo"]
[Result "1-0"]
[ECO "A37"]
[WhiteElo "1636"]
[BlackElo "2083"]
[PlyCount "65"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. Nf3 c5 2. c4 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 e5 6. d3 Nge7 7. Rb1 0-0 8. 0-0 d6 9. a3 a5 10. Ne1 Be6 11. Nc2 d5 12. cxd5 Nxd5 13. Ne3 Nxc3 14. bxc3 Qd7 15. Qa4 Nd4 16. Qd1 Nb5 17. Qc2 Nd6 18. c4 Rab8 19. Bd2 b6 20. Bc3 Nf5 21. Nxf5 Bxf5 22. Rb5 Qd6 23. Rfb1 Bd7 24. R5b2 Rfc8 25. Qd2 Bf6 26. Qh6 Bd8 27. f4 f6 28. Bd5+ Kh8 29. Bf7 Bc7 30. Bxg6 Qe7 31. fxe5 fxe5 32. Rf1 Rg8 33. Rf7 1-0

[Event "Villa Alemana op"]
[Site "Villa Alemana"]
[Date "2020.02.22"]
[Round "1.3"]
[White "Mella, Leonardo"]
[Black "Charnock Alvarez, Emmanuel"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2083"]
[BlackElo "1284"]
[PlyCount "75"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Bf5 5. Bd3 Bg6 6. Nf3 e6 7. 0-0 Nf6 8. Bf4 c6 9. h3 Bd6 10. Bg5 Nbd7 11. Re1 Bxd3 12. Qxd3 0-0 13. Ne4 Be7 14. Bf4 Nd5 15. Bd2 N7f6 16. a3 Nxe4 17. Rxe4 Nf6 18. Rh4 g6 19. Ng5 c5 20. c4 cxd4 21. Rxd4 Qb6 22. b4 Rfd8 23. Be3 Rxd4 24. Bxd4 Qd6 25. Qe3 h6 26. Nf3 Kh7 27. Bxa7 Qd8 28. Bd4 Nh5 29. g4 Nf6 30. Rd1 Qc7 31. Qc3 Qf4 32. Be5 Ne4 33. Qd3 Rd8 34. Bxf4 Rxd3 35. Rxd3 g5 36. Be5 f6 37. Rd7 fxe5 38. Rxe7+ 1-0

[Event "Villa Alemana op"]
[Site "Villa Alemana"]
[Date "2020.02.22"]
[Round "4.3"]
[White "Valencia Castaneda, Juan"]
[Black "Mella, Leonardo"]
[Result "0-1"]
[ECO "A37"]
[WhiteElo "1372"]
[BlackElo "2083"]
[PlyCount "92"]
[EventDate "2020.02.22"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CHI"]
[SourceTitle "EXT 2024"]
[Source "ChessBase"]
[SourceDate "2023.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2023.10.10"]
[SourceQuality "1"]

1. c4 c5 2. Nf3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nc3 e6 6. d3 d5 7. 0-0 Nge7 8. Qc2 d4 9. Ne4 b6 10. Bg5 h6 11. Bf6 0-0 12. Qd2 Bxf6 13. Nxf6+ Kg7 14. Qc1 Kxf6 15. Qxh6 Nf5 16. Qg5+ Kg7 17. Qxd8 Nxd8 18. Nxd4 Nxd4 19. Bxa8 Nxe2+ 20. Kg2 Bb7+ 21. Bxb7 Nxb7 22. Rab1 Rd8 23. Rfe1 Nd4 24. Red1 a5 25. b3 Rd7 26. a3 Nc6 27. f4 Rd4 28. Kf3 Nd6 29. h3 e5 30. h4 exf4 31. gxf4 Nf5 32. h5 gxh5 33. Rg1+ Kf6 34. Rbd1 Rd8 35. Rh1 Ncd4+ 36. Kf2 h4 37. Rh3 Nxb3 38. Rb1 a4 39. Rb2 Rd6 40. Rf3 Kg6 41. Kg1 Nbd4 42. Rh3 Kh5 43. Rg2 Rg6 44. Rg5+ Kh6 45. Rg2 Ne2+ 46. Kf2 Nxf4 0-1

[Event "Zuerich op-B 20th"]
[Site "Zuerich"]
[Date "1996.??.??"]
[Round "?"]
[White "Cadosch, Josef"]
[Black "Mella, Leonardo"]
[Result "0-1"]
[ECO "C11"]
[PlyCount "108"]
[EventDate "1996.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 056 Extra"]
[Source "ChessBase"]
[SourceDate "1997.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.03.01"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. Nf3 c5 6. Bf4 Qb6 7. Qd2 Nc6 8. dxc5 Bxc5 9. Na4 Bxf2+ 10. Qxf2 Qb4+ 11. Qd2 Qxa4 12. Bd3 Qb4 13. c3 Qb6 14. 0-0-0 Nc5 15. Bc2 Bd7 16. Rhf1 h6 17. Be3 Qa5 18. Kb1 Na4 19. Qf2 0-0-0 20. Bd4 Kb8 21. Nd2 Nxd4 22. Qxd4 Rhf8 23. Rf4 Nb6 24. Rdf1 Bb5 25. R1f2 Be8 26. Nb3 Qb5 27. Nc5 Qc6 28. a4 Rc8 29. b4 Nd7 30. Nxd7+ Qxd7 31. Bb3 Qd8 32. Kb2 Rc6 33. a5 b6 34. axb6 Qxb6 35. Qd3 Qc7 36. Ba4 Rb6 37. Bxe8 Rxe8 38. Rxf7 Qxe5 39. Kb3 Rc8 40. Ra2 Rc7 41. Raf2 a5 42. Rxc7 Qxc7 43. Qd4 axb4 44. cxb4 Kb7 45. Rc2 Rc6 46. Ra2 Ra6 47. Rc2 Qd7 48. Kb2 Rc6 49. Rf2 Rc4 50. Qd2 d4 51. Rf3 e5 52. Rb3 e4 53. b5 d3 54. Qa5 Qd4+ 0-1

[Event "Zuerich op-B 20th"]
[Site "Zuerich"]
[Date "1996.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Gervasoni, Pietro"]
[Result "1-0"]
[ECO "B02"]
[PlyCount "57"]
[EventDate "1996.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 056 Extra"]
[Source "ChessBase"]
[SourceDate "1997.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.03.01"]
[SourceQuality "1"]

1. e4 Nf6 2. d3 d5 3. e5 Nfd7 4. d4 e6 5. Nf3 c5 6. c3 Nc6 7. Be2 Bd6 8. h4 Qb6 9. b3 cxd4 10. cxd4 Bb4+ 11. Kf1 f6 12. a3 Be7 13. exf6 Nxf6 14. Bd3 Bd7 15. Nc3 Rc8 16. Na4 Qc7 17. Bg5 e5 18. dxe5 Ng4 19. Rc1 Qd8 20. e6 Bxe6 21. Nc5 Qb6 22. Qe2 Nd8 23. Bb5+ Kf7 24. Bxe7 Kxe7 25. b4 Rf8 26. Rd1 Qd6 27. Kg1 b6 28. Nxe6 Qxe6 29. Qd2 1-0

[Event "Zuerich op-B 20th"]
[Site "Zuerich"]
[Date "1996.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Kratochvilova, Magdalena"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "61"]
[EventDate "1996.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 056 Extra"]
[Source "ChessBase"]
[SourceDate "1997.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.03.01"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bg6 5. h4 h5 6. e6 Qd6 7. exf7+ Bxf7 8. g5 Nd7 9. Bh3 Be6 10. Bxe6 Qxe6+ 11. Ne2 0-0-0 12. Nbc3 Qf7 13. Bf4 g6 14. Qd2 Bg7 15. Nb5 b6 16. Nxa7+ Kb7 17. Nxc6 Kxc6 18. Qc3+ Nc5 19. b4 e5 20. dxe5 d4 21. Qf3+ Qd5 22. Qxd5+ Kxd5 23. bxc5 bxc5 24. 0-0-0 Ke4 25. Rhe1 Kf3 26. Rd3+ Kg4 27. Bg3 Ne7 28. Ng1 Rhf8 29. e6 c4 30. Ra3 Rde8 31. Rf3 1-0

[Event "Zuerich op-B 20th"]
[Site "Zuerich"]
[Date "1996.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Mathur, Manish"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "62"]
[EventDate "1996.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 056 Extra"]
[Source "ChessBase"]
[SourceDate "1997.03.01"]
[SourceVersion "1"]
[SourceVersionDate "1997.03.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 Nf6 6. Be3 d6 7. h3 0-0 8. Qd2 Re8 9. Nge2 Rb8 10. f4 Nd7 11. g4 Nd4 12. Ng3 b5 13. Nd1 b4 14. g5 Nb6 15. c3 bxc3 16. bxc3 Nc6 17. h4 Na4 18. Rc1 Bg4 19. e5 Qc7 20. h5 dxe5 21. hxg6 hxg6 22. f5 gxf5 23. g6 f4 24. gxf7+ Kxf7 25. Bd5+ e6 26. Bb3 Rh8 27. 0-0 Bh6 28. Bxa4 Rbg8 29. Bf2 Bh3 30. Nb2 f3 31. Qd1 e4 0-1

[Event "Zuerich op1"]
[Site "Zuerich"]
[Date "1994.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Kuemin, Simon"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "85"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Be4 5. f3 Bg6 6. h4 h5 7. e6 Qd6 8. exf7+ Bxf7 9. Ne2 Nd7 10. g5 e5 11. c3 Ne7 12. Be3 Nf5 13. Bf2 Bg6 14. Bh3 Be7 15. Nd2 c5 16. Qa4 0-0 17. 0-0 a6 18. Rad1 b5 19. Qa3 a5 20. dxc5 Nxc5 21. Nb3 Nxb3 22. Qxb3 Rfd8 23. Rd2 Qc6 24. a3 Bc5 25. Bxf5 Bxf5 26. Ng3 Bg6 27. Rfd1 Bf7 28. Qc2 Bg6 29. Qb3 Bf7 30. Bxc5 Qxc5+ 31. Kg2 Qc6 32. Nf5 Qe6 33. Qc2 Kh8 34. Ne3 Qc6 35. Qf5 Rf8 36. Qxe5 Rae8 37. Qd4 Bg8 38. Nf1 Rf5 39. Ng3 Rff8 40. Nxh5 Qg6 41. Ng3 Qd6 42. Qg4 Rf4 43. Qh5+ 1-0

[Event "Zuerich op1"]
[Site "Zuerich"]
[Date "1994.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Mueller, Leonhard1111"]
[Result "0-1"]
[ECO "B26"]
[PlyCount "150"]
[EventDate "1994.??.??"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2000"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1999.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 g6 3. g3 Bg7 4. Bg2 Nc6 5. d3 d6 6. Be3 e6 7. Qd2 Nd4 8. Nd1 Ne7 9. c3 Ndc6 10. Nf3 0-0 11. Bh6 Rb8 12. h4 f6 13. Bxg7 Kxg7 14. Ne3 h6 15. Nh2 f5 16. f4 h5 17. Nf3 Ng8 18. Ng5 Nh6 19. 0-0-0 Nf7 20. Rhe1 Nxg5 21. hxg5 Ne7 22. Kb1 b5 23. d4 fxe4 24. dxc5 d5 25. Bxe4 Qc7 26. Bd3 Qxc5 27. Nc2 Nc6 28. Qe2 Bd7 29. Rh1 Rh8 30. g4 e5 31. gxh5 e4 32. Bxe4 Rbe8 33. h6+ Kf8 34. Qd3 Rxe4 35. Qxd5 Qxd5 36. Rxd5 Bf5 37. Rxf5+ gxf5 38. g6 Kg8 39. Kc1 Re6 40. h7+ Kg7 41. Rh5 Rxg6 42. Rxf5 Rxh7 43. Rxb5 Rg1+ 44. Kd2 Rh2+ 45. Kd3 Rg3+ 46. Ne3 Rhh3 47. Rg5+ Rxg5 48. fxg5 Kg6 49. Ke4 Kxg5 50. b4 Kf6 51. Nd5+ Kf7 52. a4 Rh4+ 53. Kd3 Ke6 54. Nc7+ Kd7 55. Na6 Ne5+ 56. Kc2 Kc6 57. Kb3 Nd7 58. a5 Rh5 59. Kc4 Ne5+ 60. Kb3 Rh4 61. Ka4 Rc4 62. Kb3 Kb5 63. Nc5 Rxc5 64. bxc5 Kxc5 65. Ka4 a6 66. Kb3 Nc6 67. c4 Nxa5+ 68. Ka4 Nxc4 69. Kb3 Kb5 70. Ka2 Kb4 71. Kb1 Kc3 72. Ka1 a5 73. Kb1 a4 74. Ka1 a3 75. Kb1 Ne3 0-1

[Event "Zuerich op-B 16th"]
[Site "Zuerich"]
[Date "1992.??.??"]
[Round "?"]
[White "Isler, Peter"]
[Black "Mella, Leonardo"]
[Result "0-1"]
[ECO "C00"]
[PlyCount "44"]
[EventDate "1992.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. Qe2 c5 3. g3 Nc6 4. Nf3 Be7 5. Bg2 Nf6 6. 0-0 d5 7. d3 0-0 8. Nc3 d4 9. Nb1 e5 10. Nbd2 b5 11. a4 b4 12. Nc4 Qc7 13. b3 Bb7 14. Nh4 g6 15. Bd2 Nd7 16. Nf3 Bf6 17. Bh6 Bg7 18. Qd2 Rae8 19. Nh4 Nd8 20. Bh3 Ne6 21. Nf5 gxf5 22. exf5 Nf4 0-1

[Event "Zuerich op-B 16th"]
[Site "Zuerich"]
[Date "1992.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Knobel, Mathias"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "63"]
[EventDate "1992.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 e5 5. d3 g6 6. h3 Bg7 7. Be3 d6 8. Qd2 a6 9. Nge2 Rb8 10. 0-0 0-0 11. f4 Nd7 12. f5 b5 13. Rf2 Nb6 14. Raf1 Bb7 15. f6 Bh8 16. Bh6 Re8 17. g4 Nd4 18. Ng3 Ba8 19. Nd5 Nc8 20. Nh5 Rb7 21. Ng7 Ne6 22. Nxe8 Qxe8 23. h4 Rd7 24. h5 Bc6 25. hxg6 hxg6 26. Qe3 Rd8 27. Qh3 Rd7 28. Qh4 Nf8 29. Bg7 Nh7 30. Rf3 Bxg7 31. fxg7 Kxg7 32. Qxh7+ 1-0

[Event "Zuerich op-B 16th"]
[Site "Zuerich"]
[Date "1992.??.??"]
[Round "?"]
[White "Nyffenegger, Michael"]
[Black "Mella, Leonardo"]
[Result "1-0"]
[ECO "C02"]
[PlyCount "93"]
[EventDate "1992.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Bd7 6. a3 a5 7. b3 Qb6 8. Be3 c4 9. bxc4 Qb2 10. Nbd2 Qxc3 11. c5 a4 12. Be2 Nge7 13. 0-0 Nf5 14. Qb1 Nxe3 15. Rc1 Qa5 16. fxe3 Qc7 17. Rf1 Be7 18. Bd3 g6 19. Ra2 0-0 20. h4 f5 21. g3 Rfb8 22. Rb2 Bd8 23. Qc2 b6 24. cxb6 Rxb6 25. Rxb6 Qxb6 26. Rb1 Qa7 27. Bb5 Ne7 28. Bxd7 Qxd7 29. Qb2 Rc8 30. Ne1 Ba5 31. Nd3 Bc3 32. Qa2 Qa7 33. Nf3 Rb8 34. Nc5 Rb6 35. Rxb6 Qxb6 36. Nxa4 Qa5 37. Qc2 Be1 38. Kg2 h6 39. Nc5 Kf7 40. Nb7 Qc3 41. Qe2 Bxg3 42. Kxg3 Qxa3 43. Nd8+ Ke8 44. Nxe6 Kf7 45. Nf4 Kg7 46. Qd3 Qc1 47. Qa6 1-0

[Event "Zuerich op-B 15th"]
[Site "Zuerich"]
[Date "1991.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Buchs, Francois"]
[Result "0-1"]
[ECO "C25"]
[PlyCount "84"]
[EventDate "1991.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. g3 g6 3. Bg2 Bg7 4. Nc3 e5 5. d3 Be6 6. Be3 Nc6 7. Qd2 Qd7 8. f4 Nge7 9. h3 d5 10. Bf2 0-0 11. Nf3 exf4 12. gxf4 dxe4 13. Nxe4 b6 14. d4 Bd5 15. Ne5 Nxe5 16. dxe5 Qc6 17. Qe2 Rad8 18. 0-0-0 Qa4 19. a3 Bc4 20. Qf3 Nf5 21. Rxd8 Rxd8 22. Rd1 Qe8 23. b3 Ba6 24. Kb2 h6 25. h4 Qe7 26. h5 g5 27. Rxd8+ Qxd8 28. fxg5 Bxe5+ 29. c3 Nd6 30. Nf6+ Kh8 31. Ng4 Bb7 32. Qd3 Nc4+ 33. Qxc4 Qd2+ 34. Kb1 Bxc3 35. Qxc3+ Qxc3 36. Bxb7 Qxb3+ 37. Kc1 Qc3+ 38. Kd1 Qd3+ 39. Ke1 hxg5 40. Ne3 Qxa3 41. Bd5 f5 42. Be6 f4 0-1

[Event "Zuerich op-B 15th"]
[Site "Zuerich"]
[Date "1991.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Ruch, Bernard"]
[Result "1-0"]
[ECO "B12"]
[PlyCount "43"]
[EventDate "1991.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 Bg6 5. h4 h6 6. h5 Bh7 7. e6 fxe6 8. Bd3 Nf6 9. Bxh7 Nxh7 10. Qd3 Qd6 11. Qg6+ Kd8 12. f4 Nd7 13. Nf3 Rc8 14. Nc3 c5 15. dxc5 Rxc5 16. Nd4 Nhf6 17. Be3 a6 18. 0-0-0 Nb6 19. Nxe6+ Qxe6 20. Bxc5 Qc6 21. Bxb6+ Qxb6 22. Nxd5 1-0

[Event "Zuerich op-B 14th"]
[Site "Zuerich"]
[Date "1990.??.??"]
[Round "?"]
[White "Kolly, Jacques"]
[Black "Mella, Leonardo"]
[Result "1-0"]
[ECO "A10"]
[PlyCount "59"]
[EventDate "1990.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. c4 e6 2. g3 f5 3. Bg2 Nf6 4. b3 Be7 5. Bb2 0-0 6. Nh3 c6 7. 0-0 Qe8 8. e3 d6 9. d3 e5 10. Nd2 Qg6 11. Nf3 Qh5 12. Bc1 Ng4 13. Ne1 Be6 14. Qe2 g5 15. f3 Nf6 16. Nf2 Nbd7 17. d4 Rae8 18. Ned3 Qg6 19. Re1 Qf7 20. Bb2 exd4 21. exd4 Bd8 22. Qd2 h6 23. Re2 Bc7 24. Rae1 Re7 25. f4 g4 26. Qc3 Ne4 27. Nxe4 fxe4 28. d5 Qf6 29. Rxe4 Qxc3 30. Bxc3 1-0

[Event "Zuerich op-B 14th"]
[Site "Zuerich"]
[Date "1990.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Koechlin, S."]
[Result "1-0"]
[ECO "B25"]
[PlyCount "68"]
[EventDate "1990.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. g3 Nc6 4. Bg2 g6 5. d3 Bg7 6. Bg5 Nf6 7. h3 h6 8. Be3 0-0 9. Qd2 Kh7 10. f4 Qa5 11. Nf3 Nd7 12. 0-0 Rb8 13. Nh2 Nd4 14. Qf2 b5 15. a3 Bb7 16. Rac1 b4 17. axb4 Qxb4 18. Nd1 Qb5 19. b3 a5 20. g4 a4 21. Nc3 Qb4 22. Nxa4 Bc6 23. Bd2 Qb7 24. Nc3 Nxc2 25. Rxc2 Qxb3 26. Rfc1 Nb6 27. Nf3 Na4 28. Kh2 Nb2 29. Ne1 Bb7 30. Be3 Ba6 31. Qd2 c4 32. d4 Nd3 33. Rb1 Qxb1 34. Nxb1 Rxb1 1-0

[Event "Zuerich op-B 14th"]
[Site "Zuerich"]
[Date "1990.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Stoecklin, Carlo"]
[Result "1-0"]
[ECO "C07"]
[PlyCount "97"]
[EventDate "1990.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 c5 4. Ngf3 Nc6 5. c3 cxd4 6. cxd4 Nf6 7. e5 Ne4 8. Bd3 Nxd2 9. Bxd2 Qb6 10. Bc3 Bb4 11. 0-0 Bxc3 12. bxc3 h6 13. Bc2 Bd7 14. Re1 Na5 15. Nd2 Qc7 16. Re3 0-0-0 17. Rb1 Kb8 18. Qc1 f5 19. Bd3 Bc8 20. Rb5 b6 21. Qa3 Ka8 22. Rb1 g5 23. Qb2 g4 24. Nb3 Nc4 25. Bxc4 dxc4 26. Nd2 Bb7 27. Qb5 Bd5 28. Rb4 Rc8 29. a4 Rh7 30. Re1 Qd7 31. Qxd7 Rxd7 32. Ra1 Rb7 33. a5 b5 34. Nb1 a6 35. Nd2 Rg8 36. Re1 h5 37. Nf1 Rf7 38. Ng3 Rg5 39. Ne2 f4 40. g3 fxg3 41. fxg3 Be4 42. Nf4 Bf5 43. Rb2 Kb7 44. Rd2 Rd7 45. d5 exd5 46. e6 Re7 47. Rxd5 Kc6 48. Ree5 Bxe6 49. Rc5+ 1-0

[Event "Zuerich op-A 13th"]
[Site "Zuerich"]
[Date "1989.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Ivanov, Spiridon"]
[Result "0-1"]
[ECO "B07"]
[BlackElo "2365"]
[PlyCount "30"]
[EventDate "1989.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f3 Bg7 5. g4 h5 6. g5 Nfd7 7. h4 c5 8. Be3 Qa5 9. Qd2 Nc6 10. Nge2 0-0 11. f4 cxd4 12. Nxd4 Nxd4 13. Bxd4 e5 14. fxe5 Nxe5 15. 0-0-0 Nf3 0-1

[Event "Zuerich op-A 13th"]
[Site "Zuerich"]
[Date "1989.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Mueller, Leonhard1111"]
[Result "1-0"]
[ECO "B25"]
[PlyCount "53"]
[EventDate "1989.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Bg5 Nf6 7. h3 0-0 8. Qd2 Nd4 9. Nd1 e5 10. c3 Ne6 11. h4 Rb8 12. Ne3 b5 13. Ne2 Nxg5 14. hxg5 Ne8 15. f4 Bd7 16. 0-0-0 a5 17. Rh2 a4 18. Rdh1 a3 19. b3 f6 20. Rxh7 fxg5 21. f5 Nf6 22. R7h2 gxf5 23. Nxf5 Ng4 24. Rh7 Bxf5 25. exf5 d5 26. Bxd5+ Qxd5 27. Rxg7+ 1-0

[Event "Zuerich op-A 13th"]
[Site "Zuerich"]
[Date "1989.??.??"]
[Round "?"]
[White "Mella, Leonardo"]
[Black "Unterfraumer, Albert"]
[Result "1/2-1/2"]
[ECO "B26"]
[PlyCount "81"]
[EventDate "1989.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 Nc6 3. g3 Nf6 4. Bg2 g6 5. d3 Bg7 6. Be3 d6 7. h3 Bd7 8. Qd2 Rb8 9. f4 b5 10. Nge2 0-0 11. g4 e6 12. Nd1 Ne8 13. c3 b4 14. d4 bxc3 15. Ndxc3 cxd4 16. Nxd4 Nxd4 17. Bxd4 Bxd4 18. Qxd4 Qh4+ 19. Qf2 Qxf2+ 20. Kxf2 Rxb2+ 21. Kg3 Nf6 22. Rhd1 Rc8 23. Rd3 Rc2 24. Nd1 Bc6 25. Nf2 d5 26. e5 Nd7 27. Ra3 Bb5 28. Nd1 a6 29. Rb1 Nb6 30. Ne3 Rd2 31. Bf1 Nc4 32. Nxc4 dxc4 33. Rc1 c3 34. Bxb5 axb5 35. Raxc3 Rxc3+ 36. Rxc3 Rxa2 37. Rb3 Ra5 38. f5 gxf5 39. gxf5 exf5 40. Kf4 Kg7 41. Kxf5 1/2-1/2

[Event "Zuerich op-A 13th"]
[Site "Zuerich"]
[Date "1989.??.??"]
[Round "?"]
[White "Wildi, Marcel"]
[Black "Mella, Leonardo"]
[Result "1-0"]
[ECO "D05"]
[WhiteElo "2215"]
[PlyCount "51"]
[EventDate "1989.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]

1. d4 e6 2. c3 d5 3. Nf3 c5 4. e3 Nf6 5. Bd3 Nc6 6. Nbd2 Bd6 7. Qe2 0-0 8. 0-0 b6 9. e4 dxe4 10. Nxe4 Bb7 11. dxc5 Bxc5 12. Nxf6+ gxf6 13. Rd1 Qc7 14. Bxh7+ Kxh7 15. Qe4+ f5 16. Qh4+ Kg8 17. Qg5+ Kh7 18. Qh6+ Kg8 19. Ng5 f6 20. Nxe6 Qf7 21. Rd3 Ne5 22. Rg3+ Ng4 23. Nxc5 bxc5 24. h3 Qh7 25. hxg4 Qxh6 26. Bxh6 1-0

