[Event "Zuerich op 42nd"]
[Site "Zuerich"]
[Date "2018.12.27"]
[Round "2"]
[White "Narayanan, Sunilduth Lyna"]
[Black "Zweifel, Richard"]
[Result "1-0"]
[ECO "B82"]
[WhiteElo "2575"]
[BlackElo "2187"]
[PlyCount "79"]
[EventDate "2018.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 188 Extra"]
[Source "ChessBase"]
[SourceDate "2019.02.26"]
[SourceVersion "1"]
[SourceVersionDate "2019.02.26"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. a3 Nf6 8. f4 d6 9. Qf3 Be7 10. 0-0-0 Nxd4 11. Bxd4 0-0 12. e5 Nd7 13. Bd3 dxe5 14. fxe5 Nxe5 15. Bxh7+ Kxh7 16. Qh5+ Kg8 17. Bxe5 Qa5 18. Qe2 b5 19. Bxg7 Bg5+ 20. Kb1 Kxg7 21. Qg4 b4 22. Rd5 exd5 23. Qxg5+ Kh8 24. Rf1 f5 25. Qh6+ Kg8 26. Qg6+ Kh8 27. Rf3 f4 28. g4 Bxg4 29. Qh6+ Kg8 30. Qg5+ Kh8 31. Qh4+ Kg7 32. Qxg4+ Kf6 33. Rxf4+ Ke5 34. Qg5+ Ke6 35. Qh6+ Ke5 36. Rxf8 Rxf8 37. Qxf8 bxc3 38. Qg7+ Ke4 39. Qxc3 Qb6 40. Qb4+ 1-0

[Event "Zuerich Easter op 1st"]
[Site "Zuerich"]
[Date "2018.04.02"]
[Round "7"]
[White "Zweifel, Richard"]
[Black "Colmenares, Aurelio"]
[Result "1-0"]
[ECO "C55"]
[WhiteElo "2100"]
[BlackElo "2390"]
[PlyCount "117"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. 0-0 0-0 6. a4 d6 7. c3 Kh8 8. a5 a6 9. Qb3 Qe8 10. Re1 Ng8 11. d4 f5 12. exf5 Bxf5 13. dxe5 Bxb1 14. Bxg8 Rxf3 15. exd6 Qg6 16. dxe7 Be4 17. Rxe4 Qxe4 18. gxf3 Qg6+ 19. Kh1 Rxg8 20. Bf4 Re8 21. Bg3 h5 22. h4 Rxe7 23. Kg2 Rf7 24. Re1 Nxa5 25. Qd5 Rf5 26. Re5 Rxe5 27. Qxe5 Nc4 28. Qxc7 b5 29. b3 Nb2 30. c4 bxc4 31. bxc4 Nd3 32. c5 Ne1+ 33. Kf1 Nxf3 34. c6 Qd3+ 35. Kg2 Ne1+ 36. Kg1 Nf3+ 37. Kg2 Nd2 38. Kh2 Nf3+ 39. Kg2 Nd4 40. Qd8+ Kh7 41. Qd5 Qg6 42. Qxd4 Qxc6+ 43. Kh2 Qf3 44. Qf4 Qe2 45. Qf5+ Kg8 46. Qe5 Qf3 47. Qe6+ Kh7 48. Qxa6 Qf5 49. Qd6 Qf3 50. Qf4 Qe2 51. Qf5+ Kg8 52. Be5 Qe1 53. Qe6+ Kh7 54. Qf5+ Kg8 55. Bd4 Qe8 56. Qg5 Qf7 57. Qxg7+ Qxg7 58. Bxg7 Kxg7 59. Kg3 1-0

[Event "Zuerich Easter op 1st"]
[Site "Zuerich"]
[Date "2018.04.01"]
[Round "6"]
[White "Zweifel, Richard"]
[Black "Bounlom, Samyo"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2100"]
[BlackElo "1986"]
[PlyCount "67"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bd7 5. Nf3 Bc6 6. Bd3 Nd7 7. 0-0 Ngf6 8. Ng3 g6 9. b3 Bg7 10. Ba3 Nd5 11. c4 Nc3 12. Qd2 Bxf3 13. gxf3 Bxd4 14. Rac1 Qf6 15. Bb4 Ne5 16. Qc2 Nxf3+ 17. Kh1 Qh4 18. Kg2 Ng5 19. f4 Nh3 20. Bxc3 Bxc3 21. Qxc3 0-0-0 22. Qe5 Rhe8 23. Rcd1 f6 24. Qe3 g5 25. fxg5 fxg5 26. Qxa7 Nf4+ 27. Kg1 Rxd3 28. Rxd3 Nxd3 29. Rd1 c6 30. Rxd3 Kc7 31. Qa5+ Kb8 32. Rd7 Qf4 33. Qb6 Qe3+ 34. Qxe3 1-0

[Event "Zuerich Easter op 1st"]
[Site "Zuerich"]
[Date "2018.03.31"]
[Round "3"]
[White "Borner, Daniel"]
[Black "Zweifel, Richard"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2189"]
[BlackElo "2100"]
[PlyCount "35"]
[EventDate "2018.03.30"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "CBM 183 Extra"]
[Source "ChessBase"]
[SourceDate "2018.04.19"]
[SourceVersion "1"]
[SourceVersionDate "2018.04.19"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3 Be7 9. 0-0-0 b5 10. g4 Nxd4 11. Bxd4 Bb7 12. Qf2 b4 13. Na4 e5 14. Bb6 Qc6 15. b3 a5 16. Kb1 0-0 17. h4 Ba6 18. Bxa6 1/2-1/2

[Event "Zuerich op-A 41st"]
[Site "Zuerich"]
[Date "2017.12.26"]
[Round "1"]
[White "Karthik, Venkataraman"]
[Black "Zweifel, Richard"]
[Result "1-0"]
[ECO "A16"]
[WhiteElo "2475"]
[BlackElo "2117"]
[PlyCount "108"]
[EventDate "2017.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2019"]
[Source "ChessBase"]
[SourceDate "2018.10.10"]
[SourceVersion "1"]
[SourceVersionDate "2018.10.10"]
[SourceQuality "1"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. h4 h6 6. e4 Nxc3 7. dxc3 Qxd1+ 8. Kxd1 Bg7 9. Bc4 0-0 10. Kc2 Bg4 11. Bf4 Nd7 12. Nh2 Be6 13. Bxe6 fxe6 14. Be3 Rad8 15. Rad1 Ne5 16. b3 Nc6 17. Nf3 a6 18. Rhf1 e5 19. b4 Rxd1 20. Rxd1 Rd8 21. Nd2 e6 22. a4 b6 23. Rf1 Bf8 24. Nb3 Kg7 25. Ra1 Be7 26. g3 Ra8 27. Nd2 g5 28. h5 Kf7 29. Nc4 Bf6 30. Rd1 Ke7 31. Kb3 Rd8 32. Rxd8 Nxd8 33. a5 b5 34. Nb2 Nb7 35. Nd3 Kd7 36. f3 Bg7 37. Bc1 c6 38. c4 bxc4+ 39. Kxc4 Kd6 40. Bb2 Bf6 41. f4 gxf4 42. gxf4 Kc7 43. Bxe5+ Bxe5 44. Nxe5 Nd6+ 45. Kd3 c5 46. bxc5 Nb7 47. Nf7 Nxc5+ 48. Kd4 Nb3+ 49. Ke5 Kd7 50. Nxh6 Ke7 51. f5 exf5 52. Nxf5+ Kf7 53. h6 Kg8 54. Kd5 Nxa5 1-0

[Event "Zuerich Chess Challenge op 6th"]
[Site "Zuerich"]
[Date "2017.04.13"]
[Round "1"]
[White "Zweifel, Richard"]
[Black "Perunovic, Milos"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2114"]
[BlackElo "2611"]
[PlyCount "88"]
[EventDate "2017.04.13"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 177 Extra"]
[Source "ChessBase"]
[SourceDate "2017.04.27"]
[SourceVersion "1"]
[SourceVersionDate "2017.04.27"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 e6 3. b3 a6 4. Bb2 Nc6 5. g3 d5 6. exd5 exd5 7. Qe2+ Qe7 8. d4 Bg4 9. Qxe7+ Bxe7 10. Bg2 Nf6 11. Nbd2 Rc8 12. 0-0 Nxd4 13. Bxd4 cxd4 14. Nxd4 0-0 15. h3 Bh5 16. g4 Bg6 17. c4 Bd3 18. Rfd1 Bc5 19. Nf5 h5 20. Nf1 dxc4 21. Bxb7 Rb8 22. Bxa6 hxg4 23. N1e3 Bxf5 24. Nxf5 cxb3 25. axb3 Rxb3 26. hxg4 Nxg4 27. Ra2 Ra8 28. Rd5 Bxf2+ 29. Kg2 g6 30. Nh6+ Nxh6 31. Kxf2 Rb6 32. Rda5 Kg7 33. Kf3 Nf5 34. Bd3 Rxa5 35. Rxa5 Nd6 36. Rd5 f5 37. Kf4 Kf6 38. Ra5 Rb4+ 39. Kf3 g5 40. Ra6 g4+ 41. Kg3 Rd4 42. Be2 Kg5 43. Ra5 Ne4+ 44. Kg2 Rd2 0-1

[Event "Bad Ragaz op 11th"]
[Site "Bad Ragaz"]
[Date "2016.03.26"]
[Round "5"]
[White "Zweifel, Richard"]
[Black "Gaehwiler, Gabriel"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2068"]
[BlackElo "2342"]
[PlyCount "80"]
[EventDate "2016.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 0-0 10. 0-0-0 a5 11. Bb5 Na6 12. Qe2 Qc7 13. g4 a4 14. Nxa4 Nb4 15. Bb6 Qc8 16. Kb1 Nd7 17. Be3 Nxa2 18. Kxa2 Rxa4+ 19. Bxa4 Bc4 20. Qd2 b5 21. Bxb5 Qa8+ 22. Kb1 Bxb5 23. Bg5 f6 24. Be3 Bc4 25. g5 Qa4 26. gxf6 Nxf6 27. Qc3 Ra8 28. Kc1 Rc8 29. Kd2 Be6 30. Ra1 Qb5 31. Ra5 Qb8 32. Rha1 Rxc3 33. Ra8 Rc8 34. Rxb8 Rxb8 35. Ra7 Bf8 36. Ra3 d5 37. Ra6 Bc8 38. Ra4 dxe4 39. fxe4 Bd7 40. Ra5 Bb4+ 0-1

[Event "Bad Ragaz op 11th"]
[Site "Bad Ragaz"]
[Date "2016.03.25"]
[Round "3"]
[White "Zweifel, Richard"]
[Black "Pikula, Dejan"]
[Result "1/2-1/2"]
[ECO "B07"]
[WhiteElo "2068"]
[BlackElo "2437"]
[PlyCount "104"]
[EventDate "2016.03.24"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 2018"]
[Source "ChessBase"]
[SourceDate "2017.10.13"]
[SourceVersion "1"]
[SourceVersionDate "2017.10.13"]
[SourceQuality "1"]

1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. dxe5 dxe5 5. Qxd8+ Kxd8 6. Bg5 Be6 7. 0-0-0+ Nbd7 8. Nf3 Kc8 9. Nd2 Ng4 10. Bh4 Bc5 11. f3 Bf2 12. Bg5 h6 13. fxg4 hxg5 14. Bc4 Bxc4 15. Nxc4 f6 16. Rd2 Bd4 17. Ne2 Bc5 18. Kb1 b5 19. Na3 Bxa3 20. bxa3 Nc5 21. Ng3 c6 22. h3 Kc7 23. Rhd1 Rhd8 24. Kc1 Rxd2 25. Rxd2 Rd8 26. Rxd8 Kxd8 27. Kd2 g6 28. Ke3 Na4 29. Ne2 Nb2 30. g3 Nc4+ 31. Kd3 Nxa3 32. h4 Ke7 33. Ng1 Nc4 34. Nf3 gxh4 35. gxh4 Ke6 36. h5 gxh5 37. gxh5 f5 38. exf5+ Kxf5 39. h6 Nd6 40. h7 Nf7 41. Ke3 a5 42. Nh4+ Kf6 43. Nf3 Kf5 44. Nh4+ Kf6 45. Nf3 c5 46. Ke4 Ke6 47. c3 b4 48. Kd3 Kf5 49. Nd2 a4 50. cxb4 cxb4 51. Kc4 b3 52. axb3 axb3 1/2-1/2

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "7"]
[White "Gyger, Marcel"]
[Black "Zweifel, Richard"]
[Result "1-0"]
[ECO "B23"]
[PlyCount "65"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. e4 c5 2. Nc3 d6 3. f4 Nc6 4. Bc4 Nf6 5. Nf3 e6 6. d3 Be7 7. 0-0 0-0 8. Bb3 a6 9. Ne2 b5 10. c3 Qb6 11. Kh1 d5 12. e5 Ng4 13. d4 Nh6 14. Bc2 cxd4 15. Nexd4 Rd8 16. Nxc6 Qxc6 17. Nd4 Qe8 18. g4 g6 19. f5 Bf8 20. f6 Bb7 21. Qf3 Kh8 22. Qh3 Ng8 23. Bg5 Rd7 24. Rf3 Rc8 25. Raf1 Rcc7 26. Qh4 Ba8 27. Rh3 h6 28. Qg3 Kh7 29. Qf4 Rc4 30. Rff3 Rdc7 31. Bb3 R4c5 32. Rh4 Nxf6 33. Bxf6 1-0

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "5"]
[White "Zweifel, Richard"]
[Black "Bajraktari, Perparim"]
[Result "1/2-1/2"]
[ECO "D87"]
[PlyCount "105"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 0-0 8. Ne2 c5 9. 0-0 Nc6 10. Be3 Bg4 11. f3 Na5 12. Bxf7+ Rxf7 13. fxg4 Rxf1+ 14. Kxf1 Qd6 15. Kg1 Qe6 16. Qd3 Rf8 17. g5 Nc4 18. d5 Ne5 19. dxe6 Nxd3 20. Rf1 b6 21. Rxf8+ Kxf8 22. Kf1 Ke8 23. Bd2 Kd8 24. h3 Kc7 25. Nf4 Ne5 26. Ke2 Kd6 27. Be1 Nc6 28. Kd3 Be5 29. g3 Nd8 30. a4 a6 31. Kc4 Kc6 32. Bf2 Bd6 33. h4 Bxf4 34. gxf4 Nxe6 35. f5 Nc7 36. f6 exf6 37. gxf6 Ne6 38. Bg3 b5+ 39. axb5+ axb5+ 40. Kd3 Kd7 41. e5 Nf8 42. Bf2 Ne6 43. Ke4 Kc6 44. Be3 h5 45. Bh6 b4 46. cxb4 cxb4 47. f7 b3 48. Kd3 Kd5 49. f8Q Nxf8 50. Bxf8 b2 51. Kc2 g5 52. hxg5 Kxe5 53. g6 1/2-1/2

[Event "Bern op"]
[Site "Bern"]
[Date "1996.??.??"]
[Round "9"]
[White "Zweifel, Richard"]
[Black "Jagstaidt, Patrick"]
[Result "0-1"]
[ECO "E14"]
[BlackElo "2110"]
[PlyCount "52"]
[EventDate "1996.02.??"]
[EventType "swiss"]
[EventRounds "9"]
[EventCountry "SUI"]
[SourceTitle "CBM 051 Extra"]
[Source "ChessBase"]
[SourceDate "1996.05.01"]
[SourceVersion "1"]
[SourceVersionDate "1996.05.01"]
[SourceQuality "1"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. e3 Bb7 5. Bd3 Be7 6. 0-0 0-0 7. Nc3 d5 8. cxd5 exd5 9. Ne5 Nbd7 10. f4 Ne4 11. Qc2 Ndf6 12. g4 Nxc3 13. bxc3 Ne4 14. a4 Rc8 15. a5 a6 16. Ba3 b5 17. Qb2 c5 18. Nf3 g6 19. Bxe4 dxe4 20. Nd2 Qd7 21. g5 Rc7 22. Rad1 Rfc8 23. dxc5 Qh3 24. Rfe1 Rd8 25. Qa1 Rcd7 26. c6 Rxd2 0-1

[Event "Zuerich op-B 19th"]
[Site "Zuerich"]
[Date "1995.??.??"]
[Round "?"]
[White "Glur, Erwin"]
[Black "Zweifel, Richard"]
[Result "1-0"]
[ECO "B20"]
[PlyCount "57"]
[EventDate "1995.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. d3 d6 3. g3 e6 4. Nh3 Nc6 5. f4 Be7 6. c3 Nf6 7. Nd2 e5 8. Nf2 b5 9. Be2 Qb6 10. Qc2 Bb7 11. Nf3 a5 12. Be3 a4 13. 0-0 Bc8 14. d4 cxd4 15. cxd4 exd4 16. Nxd4 Nxd4 17. Bxd4 Qb7 18. Rac1 0-0 19. Qd3 Rb8 20. g4 Be6 21. b3 d5 22. e5 Ne4 23. f5 Bd7 24. Nxe4 dxe4 25. Qg3 Rfc8 26. e6 fxe6 27. fxe6 Rxc1 28. Rxc1 Bc6 29. Rxc6 1-0

[Event "Zuerich op-B 19th"]
[Site "Zuerich"]
[Date "1995.??.??"]
[Round "?"]
[White "Portmann, Daniel"]
[Black "Zweifel, Richard"]
[Result "1-0"]
[ECO "B50"]
[PlyCount "105"]
[EventDate "1995.12.26"]
[EventType "swiss"]
[EventRounds "7"]
[EventCountry "SUI"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 d6 3. c4 Bg4 4. Be2 Nc6 5. Nc3 g6 6. 0-0 Bg7 7. d3 Nf6 8. Bg5 h6 9. Be3 0-0 10. Qd2 Kh7 11. Rab1 Bxf3 12. Bxf3 Nd7 13. g3 Nde5 14. Be2 Qd7 15. Qd1 Nd4 16. Bxd4 cxd4 17. Nd5 e6 18. Nf4 Nc6 19. Bg4 f5 20. exf5 gxf5 21. Bf3 e5 22. Ng2 Ne7 23. Qe2 d5 24. cxd5 Nxd5 25. g4 Ne7 26. gxf5 Nxf5 27. Qe4 Kh8 28. Qxb7 Qxb7 29. Bxb7 Rab8 30. Bd5 Ne7 31. Bc4 Rbc8 32. Rfe1 Ng6 33. b4 Rc7 34. a4 Rb8 35. Rb3 Bf8 36. b5 Kg7 37. a5 Bc5 38. Bd5 Kf6 39. Kf1 Ne7 40. Be4 Nc8 41. Reb1 Ke6 42. Ne1 Kd6 43. Nf3 Rg7 44. Nd2 Ke6 45. Rc1 Rc7 46. Bc6 Bd6 47. Rcb1 Ne7 48. Bf3 Rc2 49. Bg4+ Kd5 50. Ne4 Bc7 51. b6 axb6 52. axb6 Bd6 53. Nf6+ 1-0

