[Event "Tegernsee Masters 2020"] [Site "Tegernsee GER"] [Date "2020.11.07"] [Round "8.2"] [White "Bluebaum, M."] [Black "Nguyen, Thai Dai Van"] [Result "1-0"] [ECO "D00"] [WhiteElo "2672"] [BlackElo "2571"] [Annotator "Yip"] [PlyCount "151"] [EventDate "2020.10.31"] [EventType "tourn"] [EventRounds "9"] [EventCountry "GER"] [EventCategory "13"] [SourceTitle "TWIC 1357"] [Source "Mark Crowther"] [SourceDate "2020.11.09"] [SourceVersion "1"] [SourceVersionDate "2020.11.09"] [SourceQuality "2"] {[%evp 0,124,27,25,13,19,18,22,35,39,62,-13,10,22,23,30,38,25,25,20,26,11,37, 33,36,21,21,28,50,42,44,48,46,51,62,53,71,65,172,150,147,149,155,147,150,132, 128,136,130,91,94,88,88,87,91,72,97,73,79,94,91,79,106,88,89,97,90,87,83,74,91, 74,87,86,102,96,96,100,101,100,96,100,103,92,96,103,100,100,100,100,92,81,98, 99,104,114,151,164,173,178,178,173,174,174,182,174,184,185,187,184,186,90,90, 89,89,89,88,109,88,88,88,80,92,85,95,155,173] The opposite colored bishops endgame is of some interest} 1. d4 d5 2. Bf4 Nf6 3. e3 c5 4. Nf3 Nc6 5. Nbd2 Nh5 $5 6. dxc5 Nxf4 7. exf4 {This structure is quite fashionable now} g6 (7... Qa5 {White has done well against this, for example:} 8. c3 (8. Bd3 Qxc5 9. O-O g6 10. Nb3 Qd6 11. Qd2 Bg7 12. c3 O-O 13. Rfe1 Bg4 14. Qe3 Bxf3 15. Qxf3 e6 16. h4 h5 17. g3 Rfe8 18. Rad1 a6 19. Nd2 b5 20. Ne4 Qd7 21. Ng5 Rad8 22. Bc2 b4 23. Ba4 bxc3 24. bxc3 Qc8 25. f5 gxf5 26. c4 Nd4 27. Rxd4 Bxd4 28. Bxe8 Rxe8 29. Qxh5 Qc7 30. cxd5 Re7 31. dxe6 f6 32. Qg6+ Kf8 33. Nf3 Bc3 34. Rc1 Rxe6 35. Nd4 Rb6 36. Qh6+ Kg8 37. Qe3 {1-0 (37) Carlsen,M (2863)-Caruana,F (2835) lichess.org INT 2020}) (8. c4 e6 9. a3 Qxc5 10. Bd3 Be7 11. O-O Qd6 12. g3 O-O 13. Rc1 Bd7 14. c5 Qc7 15. b4 Bf6 16. Qc2 g6 17. Rfe1 b5 18. Bxb5 Nxb4 19. axb4 Bxb5 20. Nb3 Rab8 21. Qd2 Bc4 22. Na5 Rfd8 23. Ne5 Bb5 24. Qd4 Bg7 25. h4 f6 26. Nf3 Re8 27. Re3 Qf7 28. Rce1 a6 29. Qd2 Bd7 30. Nb3 Bf8 31. Ra1 Bb5 32. Nbd4 Bc4 33. Qe1 Qb7 34. Rxe6 Qf7 35. Rxe8 Rxe8 36. Qd2 Qb7 37. f5 Re4 38. Qc3 Qe7 39. Kg2 gxf5 40. Nxf5 Qe6 41. Ne3 Bb5 42. Nd4 Qe5 43. Nxb5 d4 44. Nxd4 Rxd4 45. Rxa6 Qe4+ 46. Kh2 {1-0 (46) Illingworth,M (2493)-Sethuraman,S (2644) chess. com INT 2020}) 8... Qxc5 9. Nb3 Qd6 10. g3 g6 11. Bg2 Bg7 12. O-O Bg4 13. h3 Bxf3 14. Qxf3 e6 15. Rad1 O-O 16. h4 h5 17. f5 Ne5 18. Qe2 gxf5 19. Qxh5 Nc4 20. Qe2 b5 21. Nd4 Rab8 22. Rfe1 a6 23. a3 Rb6 24. Nf3 Qd8 25. Ng5 Qf6 26. Nh3 Bh6 27. Rd4 b4 28. g4 bxc3 29. bxc3 Rb2 30. Qf3 Nd2 31. Qg3 Bg7 32. gxf5 Qxf5 33. Rg4 Qf6 34. Nf4 Qh6 35. Nh5 Qxh5 36. Rxg7+ Kh8 37. Rg5 Qh6 38. Ree5 Rb1+ 39. Kh2 f5 40. Rxe6 {1-0 (40) Narayanan,S (2618)-Cheparinov,I (2686) chess24. com INT 2020}) 8. c3 {[#]} Bh6 $146 {Attacking the lead doubled pawn is a new approach} ({Predecessor:} 8... Bg7 9. g3 (9. Bd3 O-O 10. O-O Qa5 11. Nb3 Qc7 12. g3 Rd8 13. Re1 b6 14. cxb6 Qxb6 15. Ne5 e6 16. Nxc6 Qxc6 17. Bf1 a5 18. Nd4 Qb6 19. Qd2 Rb8 20. b3 Bd7 21. Rab1 Rdc8 22. h4 Rc7 23. Rec1 Rbc8 24. Ne2 Bb5 25. c4 Bc6 26. cxd5 Bxd5 27. Rxc7 Rxc7 28. Rc1 Rxc1 29. Qxc1 Bf8 30. Bg2 Bc5 31. Qe1 Qc6 32. Bxd5 Qxd5 33. Nc3 Qf3 34. Ne4 Bd4 35. Kh2 h6 36. Nd2 Qc3 37. Qd1 Qd3 38. Qe1 Bc3 39. Qe4 Qxd2 40. Qf3 Bd4 41. Kg2 Qxa2 {0-1 (41) Maze,S (2557)-Van Foreest,J (2682) chess24.com INT 2020}) (9. Bb5 O-O 10. O-O d4 11. Bxc6 dxc3 12. Be4 cxd2 13. Qxd2 Qxd2 14. Nxd2 Bxb2 15. Rab1 Ba3 16. c6 { 1/2-1/2 (16) Firouzja,A (2723)-Dubov,D (2683) Wijk aan Zee NED 2020}) 9... O-O 10. Bg2 b6 11. cxb6 Qxb6 12. Qb3 Qa5 13. O-O Rb8 14. Qc2 Bf5 15. Qc1 Qb6 16. Nb3 a5 17. Rd1 Rfc8 18. Rxd5 Be6 19. Rd2 a4 20. Nbd4 Nxd4 21. Nxd4 Bxd4 22. Rxd4 Qxd4 23. cxd4 Rxc1+ 24. Rxc1 Bxa2 25. Bc6 Rxb2 26. Bxa4 Rb4 27. Bc6 Rxd4 28. h4 Bd5 29. Bxd5 Rxd5 30. Kg2 h5 31. Rc7 e6 32. Rc2 Kg7 33. Ra2 Kg8 34. Rc2 Kg7 35. Ra2 Kg8 36. Rc2 {1/2-1/2 (36) Harikrishna,P (2719)-Dubov,D (2699) chess24.com INT 2020}) 9. g3 O-O 10. Nb3 a5 {/\..a4 to disturb the Nb3} 11. Nbd4 a4 12. b4 {The c5-pawn gets some support} axb3 13. axb3 Bg4 14. Bg2 Nxd4 15. cxd4 {White is happy to get a chance to improve his structure} Qd7 16. O-O Qb5 17. Qc2 Bxf3 18. Bxf3 Qb4 (18... e6) 19. Bxd5 Bg7 20. Rxa8 Rxa8 21. Qe4 Bxd4 {[#]} 22. f5 {The initiative is key in opposite colored bishops middlegames} Kg7 23. Qxe7 Rf8 24. Rd1 b6 25. fxg6 hxg6 26. Qe4 bxc5 27. Kg2 { Useful king tidying} Qb8 28. Re1 Qd6 29. h4 Rh8 30. Bc4 {White has a clear P+ and proceed with unhurried improving play} Qf6 {The threat to f2 can be easily met} 31. Re2 Rd8 32. Ra2 Rd7 33. Re2 Ra7 34. Qe8 Rc7 35. Bd5 Qd6 36. Bc4 Bf6 37. Ra2 Re7 38. Qc8 Rc7 39. Qg4 Qc6+ 40. Kh2 Re7 41. Ra6 Qe4 42. Qxe4 Rxe4 43. Rc6 Re7 44. Kg2 Bd4 {[#] White has improved about as much as possible without making commital pawn moves} 45. g4 $5 {The time has come to advance the kingside pawns} Ra7 46. f4 Re7 47. g5 $1 {Fixing the kingside pawns a potential targets for the bishop} Re4 48. Kf3 Re3+ 49. Kg4 f5+ {A hint of desperation in the face of h4-h5} 50. gxf6+ Bxf6 51. Rxc5 {Wins another pawn} Re1 52. h5 Rg1+ 53. Kf3 gxh5 54. Rxh5 {The remaining pawns are three files apart which is key should the rooks be exchanged} Rd1 55. Rd5 Rxd5 56. Bxd5 { [#] White has excellent winning chances with the pawns having adequate separation. Black would ideally like to restrain both pawns with the bishop using the same diagonal. Here this could be the f8-a3 diagonal but it is too late for the b8-h2 diagonal as the f-pawn has already occupied the diagonal} Bc3 57. Ke4 Kf6 58. f5 Ke7 59. Kd3 Bf6 (59... Bb4 60. Kc4 Bd6 61. b4 {also looks bad for Black}) 60. b4 Kd6 61. Ke4 Bc3 62. b5 Kc5 63. Bc6 Kd6 64. Be8 Ke7 65. Bc6 Ba5 66. Kd5 Bb6 67. Bb7 Bf2 68. Bc8 Kd8 69. f6 Bh4 70. f7 Ke7 71. Be6 Bf2 72. Kc6 Be3 73. Bc4 Bf2 74. b6 Be1 75. Kb7 Bf2 76. Kc7 1-0
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