[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "1"]
[White "Mariotti, Sergio"]
[Black "Stean, Michael F."]
[Result "0-1"]
[ECO "D87"]
[PlyCount "74"]
[EventDate "1970.12.15"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 O-O 8.
Ne2 c5 9. O-O Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. Qa4 Bd7 13. dxc5 Ne5 14. Qb3 Qa5
15. Rfe1 Nxc4 16. Qxc4 Be6 17. Qb4 Qxb4 18. cxb4 Bxa2 19. b5 a5 20. c6 bxc6 21.
bxc6 a4 22. c7 Rdc8 23. Bd4 a3 24. e5 Be6 25. Rc5 a2 26. f4 Bh6 27. g3 g5 28.
Ba1 gxf4 29. Nxf4 Bxf4 30. gxf4 Ra4 31. Rd1 Rxf4 32. Rd8+ Kg7 33. Rxc8 Bxc8 34.
e6+ f6 35. Ra5 Rc4 36. Rxa2 Rxc7 37. Bd4 Bxe6 0-1

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "2"]
[White "O'Kelly, Rory"]
[Black "Mariotti, Sergio"]
[Result "0-1"]
[ECO "A64"]
[PlyCount "58"]
[EventDate "1970.12.15"]

1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3
O-O 9. O-O Re8 10. Nd2 a6 11. a4 Nbd7 12. e4 Ne5 13. Qc2 Nh5 14. f4 Ng4 15. Nf3
f5 16. Ng5 Bd4+ 17. Kh1 fxe4 18. Bxe4 Rxe4 19. Ncxe4 Bf5 20. Kg2 Qd7 21. Bd2 h6
22. Ne6 Ngf6 23. Rae1 Nxe4 24. g4 Nxd2 25. gxf5 Nxf1 26. f6 Kf7 27. Kxf1 Bxf6
28. Qe2 Ng7 29. Qg4 Nf5 0-1

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "3"]
[White "Mariotti, Sergio"]
[Black "Nunn, John Denis Martin"]
[Result "1-0"]
[ECO "C64"]
[PlyCount "39"]
[EventDate "1970.12.15"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 f5 5. d4 fxe4 6. dxc5 exf3 7. Qxf3 Nf6 8.
Bg5 O-O 9. Nd2 Qe8 10. Ne4 Nxe4 11. Qxe4 Qh5 12. Be3 b6 13. Rd1 Rf6 14. O-O a6
15. Qd5+ Qf7 16. Bc4 Qxd5 17. Bxd5+ Kh8 18. f4 exf4 19. Rxf4 Rxf4 20. Bxc6 1-0

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "4"]
[White "Moberly, R. Walter L."]
[Black "Mariotti, Sergio"]
[Result "1/2-1/2"]
[ECO "E82"]
[PlyCount "85"]
[EventDate "1970.12.15"]

1. c4 g6 2. Nc3 Bg7 3. d4 Nf6 4. e4 O-O 5. Be3 d6 6. f3 b6 7. Bd3 Bb7 8. Nge2
c5 9. d5 e6 10. Qd2 exd5 11. exd5 Re8 12. O-O Nbd7 13. b3 a6 14. a4 Ne5 15. Bc2
Rb8 16. Bg5 b5 17. axb5 axb5 18. Nxb5 Qb6 19. Nec3 Ba6 20. Ra4 Nh5 21. Rfa1
Bxb5 22. Nxb5 Nxf3+ 23. gxf3 Bxa1 24. Rxa1 Ra8 25. Ra4 f6 26. Bh4 f5 27. Qh6
Rxa4 28. bxa4 Qa5 29. Bxf5 Re1+ 30. Kg2 Ng7 31. Bxe1 Qxe1 32. Bd3 Nf5 33. Bxf5
Qe2+ 34. Kg3 Qe1+ 35. Kh3 Qf1+ 36. Kg4 Qg2+ 37. Kh4 Qxh2+ 38. Kg5 Qg3+ 39. Bg4
Qe5+ 40. Kh4 Qe1+ 41. Kh3 Qh1+ 42. Kg3 Qxh6 43. a5 1/2-1/2

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "5"]
[White "Mariotti, Sergio"]
[Black "Johannes, Ronald"]
[Result "1/2-1/2"]
[ECO "E23"]
[PlyCount "86"]
[EventDate "1970.12.15"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Bxc5 6. Nf3 Nc6 7. Bg5 Be7 8.
e4 d6 9. Be2 Qc7 10. O-O Bd7 11. Rac1 O-O 12. Rfd1 a6 13. Be3 Rac8 14. Bb6 Qb8
15. Rd2 Ne5 16. Nxe5 dxe5 17. Rcd1 Bc6 18. f3 Rfe8 19. a4 Bd8 20. a5 Bc7 21.
Na4 Bxa4 22. Qxa4 Red8 23. Qb4 h6 24. Kf2 Rxd2 25. Rxd2 Rd8 26. c5 Rxd2 27.
Qxd2 Kf8 28. Qb4 Kg8 29. Ke1 Nd7 30. Qc3 Qc8 31. Kd2 Bd8 32. b4 Be7 33. Kc2 Nb8
34. b5 axb5 35. Bxb5 Nc6 36. Qc4 Qd7 37. Bxc6 Qxc6 38. Kb3 Qd7 39. c6 bxc6 40.
a6 Qd1+ 41. Kb2 Qd2+ 42. Kb1 Qd1+ 43. Ka2 Qd2+ 1/2-1/2

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "7"]
[White "Miles, Anthony John"]
[Black "Mariotti, Sergio"]
[Result "0-1"]
[ECO "B87"]
[PlyCount "71"]
[EventDate "1970.12.15"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5 8. Qe2
Bb7 9. Bg5 Nbd7 10. O-O-O h6 11. Bxf6 Qxf6 12. Rhe1 Rc8 13. Qd2 Be7 14. f4 Nc5
15. Kb1 O-O 16. f5 Nxb3 17. axb3 Rc5 18. Rf1 e5 19. Nde2 Rfc8 20. b4 Rc4 21.
Ng3 Bf8 22. Rf2 Qh4 23. Qe3 Rxb4 24. b3 d5 25. Nxd5 Bc5 26. Qe1 Bxf2 27. Qxb4
Bxd5 28. Rxd5 Bxg3 29. hxg3 Qh1+ 30. Kb2 Qxg2 31. Rd2 Qxg3 32. c4 bxc4 33. bxc4
Qe3 34. Rd7 Qxe4 35. Kc3 Qe1+ 36. Rd2 0-1

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "8"]
[White "Mariotti, Sergio"]
[Black "Smith, Roger R."]
[Result "1-0"]
[ECO "A03"]
[PlyCount "107"]
[EventDate "1970.12.15"]

1. b3 c5 2. Bb2 Nc6 3. f4 d5 4. e3 Nf6 5. Nf3 g6 6. Ne5 Bg7 7. Nxc6 bxc6 8. Be2
O-O 9. O-O Qb6 10. Nc3 Ne4 11. Na4 Qa5 12. Bxg7 Kxg7 13. d3 Nf6 14. Qe1 Qxe1
15. Rfxe1 Nd7 16. c4 Ba6 17. Bf3 e6 18. e4 Bb7 19. Re2 d4 20. e5 a5 21. Kf2 h5
22. g4 hxg4 23. Bxg4 Rh8 24. Kg3 Rh6 25. h4 Rah8 26. Rh1 Kf8 27. a3 Ke7 28. Rb2
Rb8 29. Bf3 Ba8 30. Bd1 Rhh8 31. Rg2 Rh7 32. h5 Rbh8 33. Rhg1 gxh5 34. Kh4 Kf8
35. Rg5 Bb7 36. Bf3 Ba8 37. Be4 Rh6 38. Rb1 Ke7 39. Rg7 Rb8 40. Bf3 Bb7 41.
Rbg1 Rhh8 42. R1g5 Ba8 43. Bd1 Ke8 44. Rxh5 Ke7 45. Rxh8 Rxh8+ 46. Bh5 Rf8 47.
Kg4 Bb7 48. Kf3 Ba6 49. Ke4 Bc8 50. Bg6 Ke8 51. f5 Nb8 52. Rxf7 Rxf7 53. fxe6
Ke7 54. exf7 1-0

[Event "Islington Junior"]
[Site "Londra ENG"]
[Date "1970.12.??"]
[Round "9"]
[White "Bellin, Robert Cecil"]
[Black "Mariotti, Sergio"]
[Result "1/2-1/2"]
[ECO "B22"]
[PlyCount "80"]
[EventDate "1970.12.15"]

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 e6 6. Nf3 Nc6 7. Nc3 Nxc3 8.
bxc3 d6 9. Bb5 Bd7 10. exd6 Bxd6 11. O-O O-O 12. Qe2 Re8 13. Re1 h6 14. Bd2 Rc8
15. Rab1 Qc7 16. Bd3 b6 17. Qe4 f5 18. Qh4 Qd8 19. Qh5 Qf6 20. Ba6 Rcd8 21. Bb5
e5 22. Bg5 hxg5 23. Nxg5 g6 24. Bc4+ Kf8 25. Qh6+ Ke7 26. dxe5 Bxe5 27. f4 Kd6
28. Nf7+ Kc7 29. fxe5 Rxe5 30. Nxe5 Nxe5 31. Qf4 Re8 32. Bb5 Bxb5 33. Rxb5 g5
34. Qxe5+ Rxe5 35. Rbxe5 Kb7 36. c4 f4 37. c5 g4 38. Re7+ Ka6 39. cxb6 axb6 40.
R7e4 Qf5 1/2-1/2

