B08 Pirc Defence: Classical System (1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.h3 Nf6 5.Be3 O-O 6.Nf3 b6)

The last post of the week will feature a game played at the FIDE Online Arena on August 10th 2015. This is the 34th game played in the 100 game game match that is currently paused again for some time. At this point in the match I started to get a comfortable lead and after this game the score was 19 - 15 in my favor. It is true that the match was far from over at that point in time and the match could still be won by either player. Being in the lead does mean though that I can accept draws more easily because I am no longer forced to increase the amount of wins I have. It also means that my opponent in this match does need to play for the win and in some cases it can play to my advantage if my opponent tries too hard to win positions that should be drawn.

[Event "Challenge 32387544"] [Site "online arena"] [Date "2015.08.10"] [Round "1"] [White "Tocklin, Tomi"] [Black "Vierjoki, Timo"] [Result "0-1"] [ECO "B08"] [WhiteElo "1721"] [BlackElo "1766"] [Annotator "Tactical Analysis 2.10 (30s)"] [PlyCount "94"] [EventDate "2015.??.??"] 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. h3 Nf6 5. Be3 O-O 6. Nf3 b6 {B08 Pirc Defence: Classical System} 7. Be2 Bb7 {LiveBook: 3 Games} 8. d5 Ba6 $146 {0.26/23} (8... a6 $142 {-0.27/26}) (8... Nbd7 9. O-O (9. Qd2 Nc5 10. Bxc5 bxc5 11. O-O c6 12. Rfe1 Re8 13. dxc6 Bxc6 14. e5 Ne4 15. Nxe4 Bxe4 16. Bb5 Bxf3 17. Bxe8 Bxg2 18. Bxf7+ Kxf7 19. e6+ Kg8 20. Kxg2 Bxb2 21. Rad1 Bf6 22. Qd5 Rb8 23. Rb1 Bc3 { Tocklin,T-Makela,R Lahti 1998 1-0 (75)}) 9... Nc5 10. Nd2 e6 11. Bf3 exd5 12. exd5 Re8 13. Nb3 Nfe4 14. Nxe4 Nxe4 15. Bd4 Bxd4 16. Qxd4 Ng5 17. Nd2 Re5 18. c4 Qe7 19. h4 Nxf3+ 20. Nxf3 Re4 21. Qd3 Re8 22. Rfe1 f5 23. Kf1 {Perez Mederos,R (2192)-Martinez Ramirez,L (2374) Santa Clara 2015 0-1 (51)}) (8... c6 9. O-O Nbd7 (9... cxd5 10. exd5 Na6 11. Bc4 Rc8 12. b3 Nc5 13. Nd4 Nfe4 14. Nxe4 Nxe4 15. Qf3 Bxd4 16. Bxd4 Nd2 17. Qe2 Nxc4 18. bxc4 Ba6 19. Rfe1 Rc7 20. Qe3 Bxc4 21. Bb2 Qc8 22. Qd4 f6 23. Re6 Qb7 24. Rd1 {Bottenberg,F-Blok,R Netherlands 2001 1-0 (44)}) 10. a4 Nc5 11. dxc6 Bxc6 12. e5 Nfe4 13. Nxe4 Bxe4 14. exd6 Bxb2 15. Bh6 exd6 16. Bxf8 Bxa1 17. Bxd6 Bc3 18. Bxc5 bxc5 19. Bc4 Qf6 20. Qe2 Bc6 21. Rd1 Re8 22. Qd3 Be4 23. Qd7 {Margolin,B (2435)-Solodovnichenko, Y (2590) Germany 2008 1/2-1/2 (42)}) 9. O-O {White has an edge.} Bxe2 10. Qxe2 (10. Nxe2 Nxe4 11. Nfd4 Qc8 $15) 10... Nbd7 11. Rfe1 Re8 12. Nd4 Nb8 {0.95/24} (12... e6 $14 {0.39/26}) 13. Qc4 a6 14. a4 $1 Nfd7 15. f4 $36 {Keeping Black busy.} Nc5 16. e5 {0.08/29} (16. b4 $16 {0.96/24} e5 17. fxe5 (17. bxc5 exd4 18. Bxd4 Bxd4+ 19. Qxd4 bxc5 $14) 17... dxe5 18. bxc5 exd4 19. Bxd4) 16... dxe5 $11 17. fxe5 Bxe5 18. Bh6 Bg7 {1.03/24} (18... Bh8 $11 {-0.09/26 keeps the balance.}) 19. Bxg7 $16 Kxg7 20. Rad1 Qc8 21. Qe2 {0.73/27} ({White should play } 21. b4 {1.50/23} Ncd7 22. Ne4) 21... Ncd7 {1.50/23} ({Better is} 21... Nbd7 { 0.73/27}) 22. Qg4 {0.70/26} (22. Qf3 $16 {1.50/23}) 22... Qb7 $2 {10.71/28 [#]} (22... Nf6 $14 {0.70/26} 23. Qf3 (23. Qxc8 Rxc8 24. Rxe7 Kf8 $14) 23... Nbd7) 23. Nf5+ $18 Kf8 24. Nh6 $2 {2.51/27} (24. Qg5 {19.74/26 Threatening mate with Qh6+.} Kg8 25. Nxe7+ Rxe7 26. Rxe7) 24... Nf6 25. Qf4 Kg7 {2.01/24} (25... b5 $16 {1.47/26}) 26. g4 Nbd7 27. g5 Rad8 $2 {4.60/26} (27... b5 $16 {1.52/24}) 28. gxf6+ Nxf6 29. Qg5 Qc8 30. Ng4 Nxg4 31. Qxg4 Qb7 {3.39/23} (31... Qf5 $142 {2.33/27} 32. Qh4 Qf6) 32. Qd4+ f6 33. Re6 c5 34. Qd3 Qc7 {4.40/23} (34... Rd6 $142 {3.02/26} 35. Rde1 Rxe6 36. Rxe6 Rd8) 35. Rde1 Rd7 {7.97/23} (35... Rd6 $142 {4.43/25} 36. b3 Kf7) 36. d6 Qb7 37. Rxe7+ $2 {2.68/30} (37. Nd5 {11.95/23 } Qc6 38. Nxe7) 37... Rdxe7 38. Rxe7+ ({Don't play} 38. dxe7 $6 Rxe7 39. Rd1 Qc6 $18) 38... Rxe7 39. dxe7 Qxe7 40. Qe4 Qd7 {2.57/22} (40... Qd6 {1.86/27 was called for.} 41. Kg2 Qd2+ 42. Kf3 Qd7) 41. Nd5 Qxh3 $2 {#17/26} (41... b5 $18 {2.74/29} 42. a5 Kf7) 42. Qe7+ Kh6 43. Qxf6 $2 {2.46/26} (43. Qf8+ { #19/24 mates} Kh5 44. Nf4+ Kg4 45. Nxh3 Kg3 46. Qxf6 Kxh3 47. Qg5 h6 48. Qxg6 b5 49. Kf2 Kh4 50. Kf3 bxa4 51. Qxh6#) 43... Qg3+ 44. Kf1 Qh3+ 45. Ke2 $2 { -0.34/28} (45. Kf2 $18 {2.49/28 White wants to mate with Qf8+.} Qh2+ 46. Ke3) 45... Qg2+ $15 46. Ke3 $1 {[#] Qf8+ would kill now.} Qxd5 47. Qh4+ $2 {-3.74/23 } ({White has to play} 47. Qxb6 $15 {-0.45/26} Qd4+ 48. Ke2) 47... Qh5 { Precision: White = 40%, Black = 22%.} 0-1