B33 Sicilian: Pelikan and Sveshnikov Variations (1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6 6.a4 a6 7.N5a3 Nf6 8.Nc3 Be7 9.Bc4 O-O 10.O-O)

This was played in the fourth round of the WORLD OPEN RAPID tournament that was held at the FIDE Online Arena on April 11th 2015. This was my second win in a row after losing five games in a row, so things seemed a little bit brighter at this point in time. There was one more round after this but the game below was the last one for me because in that last round game my opponent decided not to make any moves.

[Event "Tournament 28843065"] [Site "online arena"] [Date "2015.04.11"] [Round "4"] [White "Vierjoki, Timo"] [Black "elgaxton"] [Result "1-0"] [ECO "B33"] [WhiteElo "1835"] [BlackElo "1723"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "129"] [EventDate "2015.??.??"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. a4 a6 7. N5a3 Nf6 8. Nc3 Be7 9. Bc4 O-O 10. O-O {B33 Sicilian: Pelikan and Sveshnikov Variations. LiveBook: 20 Games} Rb8 (10... h6 11. Re1 Be6 12. Nd5 Bxd5 13. Bxd5 Nxd5 14. Qxd5 Qd7 15. c3 Qe6 16. Nc4 Rad8 17. Rd1 Qxd5 18. Rxd5 f5 19. Be3 fxe4 20. Bb6 Rd7 21. Rad1 Rf6 22. Nd2 Bf8 23. Nxe4 Rg6 24. Bc5 {1-0 (24) Bologan,V (2585) -Moldovan,D (2450) Calimanesti 1992}) (10... Nd4 11. Qd3 Nd7 12. Be3 Ne6 13. Qd2 Kh8 14. Rfd1 Ng5 15. Bd3 Nc5 16. Nc4 Bg4 17. Bxc5 dxc5 18. Be2 Qxd2 19. Rxd2 Bxe2 20. Rxe2 Bf6 21. Rd1 Ne6 22. Nd5 Nd4 23. Red2 Bg5 24. Nde3 b5 25. Nb6 {Brylev,I (2169)-Dambaev,B (1909) Russia 2014 1-0 (41)}) 11. Be3 $146 (11. Bg5 Be6 12. Bxf6 Bxf6 13. Nd5 Bg5 14. b3 Ne7 15. Qd3 Ng6 16. g3 Kh8 17. Rad1 f5 18. Ne3 fxe4 19. Qxe4 Rf6 {1-0 (19) Rincon Gonzalez,D (1986)-Montilla,J (1883) Merida 2010}) (11. Re1 Qc7 12. Nd5 Nxd5 13. exd5 Nd4 14. c3 Nf5 15. Bd3 g6 16. Nc2 Re8 17. Ne3 Nxe3 18. Bxe3 f5 19. f4 exf4 20. Bxf4 Qc5+ 21. Be3 Qxd5 22. b3 Qc6 23. Bc4+ Kg7 24. Bd4+ Kf8 25. Qd2 g5 {Osorio Pando,I-Montilla,J (1883) Merida 2010 1/2-1/2 (50)}) 11... Be6 12. Qd2 $2 {-1.89/26 [#]} (12. Bb3 $11 { 0.21/27 and White is okay.}) 12... Bxc4 $1 $19 {Black is clearly better.} 13. Nxc4 b5 $1 14. axb5 axb5 15. Ra6 bxc4 $2 {0.11/29 [#]} (15... Qc8 $19 {-1.88/25 } 16. Rxc6 Qxc6) 16. Rxc6 $11 Rxb2 17. Rxc4 Qb8 18. f3 Rc8 19. Rxc8+ Qxc8 20. Rb1 Qb8 21. Qc1 (21. Rxb2 {feels hotter.} Qxb2 22. g3 Qa1+ 23. Kg2 Qa6 24. Qd1) 21... Rxb1 22. Qxb1 Qxb1+ 23. Nxb1 {Endgame KBN-KBN} d5 24. exd5 Nxd5 25. Bd2 Bc5+ 26. Kh1 Kf8 27. Nc3 Nb4 28. Ne4 Be7 $1 29. c3 Nd3 30. Kg1 f5 31. Ng5 h6 32. Ne6+ Kf7 33. Nc7 Bd6 34. Nd5 {-0.62/28} ({White should try} 34. Nb5 $1 $11 {-0.08/34} Ke6 35. Kf1) 34... Ke6 $1 $15 35. Ne3 Bc5 {-0.13/32} (35... f4 $15 { -0.62/29} 36. Nc4 Bc5+ 37. Kf1 Kd5) 36. Kf1 $11 g5 37. g3 f4 38. Ng2 {-0.63/30} (38. Nc2 $1 $11 {-0.15/32 is superior.}) 38... Kd5 $15 39. Ke2 Kc4 40. Ne1 { -1.04/33} (40. h4 $15 {-0.63/36}) 40... Nb2 {-0.63/36} (40... Nf2 $17 {-1.04/33 } 41. gxf4 gxf4) 41. g4 {-1.43/31} ({White should play} 41. Nc2 $15 {-0.63/36}) 41... Na4 {-0.62/41} (41... Bd6 $17 {-1.43/31} 42. Ng2 Na4) 42. Nd3 Bd6 43. Nf2 Nxc3+ $2 {7.54/32} (43... Nc5 $15 {-0.67/40}) 44. Bxc3 $18 Kxc3 $15 {KB-KN} 45. Ne4+ {White mates.} Kd4 46. Nxd6 {KN-KP} Kd5 47. Nf5 e4 48. Nxh6 {KN-K3P} Ke5 49. Nf7+ Kf6 50. Nd6 e3 51. Ne4+ Kg6 52. Kd3 Kh6 53. Nc3 Kg6 54. Ke4 Kf6 55. Kd5 Ke7 56. Ke5 Kd7 57. Kf5 Kd6 58. Kxg5 Kc5 59. Kxf4 {KN-KP} Kd4 60. Ne2+ Kd3 61. Ng3 e2 62. Nxe2 $1 Kxe2 63. g5 Kf2 64. h4 Kg2 65. h5 {Accuracy: White = 44%, Black = 47%.} 1-0

Here are some of the latest and highest rated games that I was able to find in my reference database that reached the position after 10.O-O.

[Event "Alushta Autumn 2nd"] [Site "Alushta"] [Date "2001.09.??"] [Round "8"] [White "Kovchan, Alexander"] [Black "Yagupov, Igor"] [Result "1-0"] [ECO "B33"] [WhiteElo "2483"] [BlackElo "2444"] [PlyCount "81"] [EventDate "2001.09.22"] [EventType "tourn"] [EventRounds "14"] [EventCountry "UKR"] [SourceTitle "EXT 2002"] [Source "ChessBase"] [SourceDate "2001.11.25"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. a4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Bc4 O-O 10. O-O Bg4 11. Qe1 Ne8 12. Nd5 Bg5 13. Bxg5 Qxg5 14. Qe3 Qd8 15. f3 Be6 16. Rad1 Rc8 17. Rf2 Ne7 18. Rfd2 Nxd5 19. Bxd5 Bxd5 20. Rxd5 Rc6 21. R5d3 Qa5 22. Qa7 Rc7 23. Rb3 b5 24. Rxb5 Qxa4 25. Rb7 Qc6 26. Rxc7 Nxc7 27. Rd3 Nb5 28. Qf2 Nd4 29. c3 Nb3 30. Rd5 f5 31. Qc2 Rb8 32. h3 Na1 33. Qd1 fxe4 34. fxe4 Qb6+ 35. Kh2 Qxb2 36. Rxd6 h6 37. Nc4 Qxc3 38. Qd5+ Kh7 39. Rd7 Rf8 40. Nxe5 Nc2 41. Qd6 1-0 [Event "Warsaw AIG Life rapid 7th"] [Site "Warsaw"] [Date "2007.12.15"] [Round "7"] [White "Zinchenko, Yaroslav"] [Black "Moiseenko, Alexander"] [Result "0-1"] [ECO "B33"] [WhiteElo "2491"] [BlackElo "2646"] [PlyCount "160"] [EventDate "2007.12.15"] [EventType "swiss (rapid)"] [EventRounds "13"] [EventCountry "POL"] [SourceTitle "CBM 121 Extra"] [Source "ChessBase"] [SourceDate "2008.01.10"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. a4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Bc4 O-O 10. O-O Bg4 11. Qd3 Rc8 12. Bg5 Nh5 13. Bxe7 Nxe7 14. g3 Kh8 15. f3 Bh3 16. Rf2 f5 17. Rd1 Rc6 18. Bb3 Ng6 19. Kh1 f4 20. g4 Qh4 21. Kg1 Nf6 22. Be6 h5 23. gxh5 Bxe6 24. hxg6 Nh5 25. Rg2 Bh3 26. Qe2 Bxg2 27. Qxg2 Nf6 28. Kf1 Rfc8 29. Ke2 Kg8 30. Rd2 Kf8 31. Kd1 Ke7 32. a5 Rh8 33. Na2 Qh5 34. Nb4 Rcc8 35. Kc1 Rh6 36. Qf2 Rxg6 37. Qb6 Nd7 38. Nd5+ Ke8 39. Qf2 Qg5 40. b3 Qg1+ 41. Kb2 Qxf2 42. Rxf2 Nf6 43. Nb6 Rd8 44. Rd2 Nd7 45. Nbc4 Nb8 46. Nb6 Nd7 47. Nd5 Nc5 48. Nc4 Ne6 49. c3 Rh6 50. Ndb6 Ng5 51. Rd3 Rxh2+ 52. Ka3 Nf7 53. Nd5 Rh3 54. Nc7+ Ke7 55. Nd5+ Kf8 56. Nc7 Rc8 57. Nd5 g5 58. Nf6 Kg7 59. Ng4 Rc6 60. Kb4 Nh6 61. Nf2 Rh2 62. Nd1 Nf7 63. Nb6 g4 64. fxg4 Ng5 65. Nd5 Nxe4 66. Ne7 Rc7 67. Nf5+ Kf6 68. c4 Kg5 69. Nc3 Nxc3 70. Kxc3 Kxg4 71. Nxd6 Rh3 72. Ne8 Rc6 73. b4 Rxd3+ 74. Kxd3 Kf3 75. b5 axb5 76. cxb5 Rc5 77. a6 bxa6 78. bxa6 e4+ 79. Kd4 Ra5 80. Nc7 e3 0-1 [Event "Wch U16"] [Site "Porto Carras"] [Date "2015.11.01"] [Round "7"] [White "Fawzy, Adham"] [Black "Shtembuliak, Evgeny"] [Result "1-0"] [ECO "B32"] [WhiteElo "2483"] [BlackElo "2416"] [PlyCount "77"] [EventDate "2015.10.25"] [EventType "swiss"] [EventRounds "11"] [EventCountry "GRE"] [SourceTitle "Mega2015 Update 51"] [Source "Chessbase"] [SourceDate "2015.11.12"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. a4 Be7 7. N1c3 a6 8. Na3 Nf6 9. Bc4 O-O 10. O-O Be6 11. Bg5 Nd7 12. Bxe7 Qxe7 13. Nd5 Bxd5 14. Bxd5 Nf6 15. Nc4 Qc7 16. Ne3 Ne7 17. c3 Rac8 18. Ra3 b5 19. axb5 axb5 20. Ra6 Qc5 21. Qd2 Nfxd5 22. Nxd5 Nxd5 23. exd5 Rfd8 24. h3 h6 25. Rd1 Qc4 26. Rb6 Qb3 27. Rc6 Ra8 28. Qe2 b4 29. c4 Ra2 30. Rd2 Ra1+ 31. Kh2 Rc1 32. Qg4 Qa4 33. Rd3 Qa7 34. Rg3 g6 35. Qh4 Kg7 36. Qxd8 Qxf2 37. Rxg6+ Kxg6 38. Qg8+ Kf6 39. Rxd6+ 1-0