Shamkir Rd8: Three-way fight for first

[Event "Vugar Gashimov Mem 2016"] [Site "Shamkir AZE"] [Date "2016.06.03"] [Round "8.2"] [White "Giri, Anish"] [Black "Hou, Yifan"] [Result "1/2-1/2"] [ECO "D38"] [WhiteElo "2790"] [BlackElo "2663"] [Annotator "Ramirez Alvarez,Alejandro"] [PlyCount "206"] [EventDate "2016.05.26"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 h6 6. Bxf6 Qxf6 7. Qb3 c5 8. cxd5 exd5 9. a3 Bxc3+ 10. Qxc3 Nd7 11. g3 O-O 12. Bg2 Re8 13. e3 b6 14. O-O Bb7 15. Rfc1 a5 16. dxc5 Qxc3 17. Rxc3 Nxc5 18. Rac1 Kf8 19. Nd4 Rad8 20. Bf1 Re7 21. Bb5 g6 22. b4 axb4 23. axb4 Ne4 24. Rc7 Nd6 25. Rxe7 Kxe7 26. Rc7+ Kf8 27. Bd3 Rb8 28. g4 Ke8 29. Bb5+ Kf8 30. Bd7 Bc8 31. h3 Bxd7 32. Rxd7 Ne4 33. Nc6 Ra8 34. Ne5 Ra1+ 35. Kg2 Ra2 36. Rxf7+ Kg8 37. h4 Rb2 38. Rf4 Kg7 39. Nc6 b5 40. Nd8 Rxb4 41. Ne6+ Kg8 42. Rf8+ Kh7 43. Rf7+ Kh8 44. Rf8+ Kh7 45. Rf7+ Kh8 46. f3 {Black has been against the ropes for a while, but this position is already not as bad as it used to be. Black could move her knight to c3 and hope to hold, though it is still very unpleasant, but Yifan has a clear cut solution.} Rb2+ $1 47. Kh3 Re2 48. Rf8+ Kh7 49. Rf7+ Kh8 50. Rf8+ Kh7 51. fxe4 {Black gives up her knight, but this time she gets enough pawns and the pawn count from White is too reduced.} Rxe3+ 52. Kh2 Rxe4 53. Rf7+ Kh8 54. Rf8+ Kh7 55. Rf7+ Kh8 56. Nc7 Kg8 57. Rd7 Rxg4 58. Kh3 Rc4 59. Nxd5 Kf8 60. Nf6 Rc6 $1 61. Ng4 Rb6 $1 62. Nxh6 b4 {By sacrificing the h6 pawn and pushing the b-pawn Black guarantees that the rook will remain passive. This gives her enough time to bring in her king and easily draw, as White cannot both take the b-pawn and hang on to her h-pawn.} 63. Rf7+ Ke8 64. Rf2 b3 65. Rb2 Ke7 66. Ng4 Ke6 67. Re2+ Kf7 68. Rb2 Ke6 69. Kg3 Rb5 70. Nf2 Kf6 71. Ne4+ Kg7 72. Ng5 Kh6 73. Nf3 Rb4 74. Kf2 (74. Nd2 Kh5 75. Nxb3 {is a draw either by taking the h-pawn or just keeping the rook on the b-file. White can't make progress.}) 74... Kh5 75. Ke3 Rb8 76. Ke4 Rb4+ 77. Kd5 Kg4 78. Ne5+ Kh5 79. Nf3 Kg4 80. Kc5 Rb8 81. Ne5+ Kh5 82. Nc6 Rb7 83. Na5 Rb8 84. Nc6 Rb7 85. Ne5 Rb8 86. Kc4 Rc8+ 87. Kd4 Rb8 88. Kc3 Rb5 89. Nf3 Rb8 90. Nd4 Kxh4 91. Nxb3 g5 92. Rh2+ Kg3 93. Rh7 g4 94. Nd2 Rg8 95. Kd3 Kg2 96. Nc4 Rf8 97. Nd2 g3 98. Rg7 Ra8 99. Ke3 Ra3+ 100. Kf4 Kg1 101. Nc4 g2 102. Nxa3 Kf2 103. Rxg2+ Kxg2 1/2-1/2

[Event "Vugar Gashimov Mem 2016"] [Site "Shamkir AZE"] [Date "2016.06.03"] [Round "8"] [White "Safarli, E."] [Black "Karjakin, Sergey"] [Result "1/2-1/2"] [ECO "B13"] [WhiteElo "2664"] [BlackElo "2779"] [Annotator "Ramirez Alvarez,Alejandro"] [PlyCount "43"] [EventDate "2016.05.26"] 1. c4 c6 2. e4 d5 3. exd5 cxd5 4. d4 {The Caro-Kann (which this now is) is not part of Karjakin's repertoire, but since the Panov-Botvinnik is considered acceptable for Black in most variations, a lot of Black players are not afraid of answering 1.c4 with c6.} Nf6 5. Nc3 Nc6 6. Bg5 Be6 {This line has been considered good for Black for a while now, though White keeps trying to find an edge somehow. The most popular move here is 7.a3.} 7. Be2 (7. a3 Qd7 8. b4 $5 $13) 7... Qa5 8. Bf3 {By far not the most common move, but it scores well. Both Nf3 and c5 are more common but score badly.} dxc4 9. d5 O-O-O 10. Bd2 Nxd5 11. Nxd5 Rxd5 12. Bxd5 {The novelty, although of questionable value.} (12. Bxa5 Rxd1+ 13. Rxd1 Nxa5 14. Bd5 {led to a win for White in Naiditsch-Dreev from 2014, but Black should be at least fine here.}) 12... Qxd5 13. Nf3 Bf5 { White is up the exchange, but as soon as Black finishes development he not only has enough material for the exchange, but a fantastic position.} 14. O-O e6 $6 {This inaccuracy lets the advantage slip away.} (14... Bd3 15. Re1 e5 $1 {With real pressure}) 15. b3 $1 Bd3 16. bxc4 {With the c-file open like this it's hard to believe Black can be better. On the other hand his pieces should be strong enough to not be worse either.} Qf5 17. Re1 Bc5 18. Be3 Bb4 19. Bd2 Bc5 20. Be3 Bb4 21. Bd2 Bc5 22. Be3 1/2-1/2

[Event "Vugar Gashimov Mem 2016"] [Site "Shamkir AZE"] [Date "2016.06.03"] [Round "8"] [White "Caruana, F."] [Black "Mamedyarov, S."] [Result "0-1"] [ECO "B33"] [WhiteElo "2804"] [BlackElo "2748"] [Annotator "Ramirez Alvarez,Alejandro"] [PlyCount "116"] [EventDate "2016.05.26"] 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Nd5 Be7 10. Bxf6 Bxf6 11. c4 b4 12. Nc2 O-O {This variation of the Sveshnikov is not known for the most exciting games, but it is a positional and hard strugge usually.} 13. h4 $5 {The idea of this move is to take away the g5 square from the Black bishop as well as to give White the option of play Bh3 in the future. It has been tested at the top level a few times.} a5 14. g3 Be6 15. Bh3 Rb8 16. Qd3 Qd7 {Played before but not a move easily played. It is true that it's awkward to make a decision with the bishop on h3, but Black is sacrificing his structure at the moment without a clear option of going f5 in the future.} (16... a4 {Caruana himself had this position previously, against Van Wely in 2014. He won that game.}) 17. Nxf6+ gxf6 18. Bf5 (18. Bg2 f5 $6 (18... Rbd8 $13) 19. O-O-O {leads to some Sveshnikov play that I suspect favors White.}) 18... Qb7 19. Ne3 Nd4 20. O-O b3 21. a3 Kh8 22. Rac1 {Black's structural problems on the kingside are clear. In compensation he has a powerful knight on d4 that is not very easily dislodged, pressure against e4 and c4, and space on the queenside. The game is dynamically balanced at the moment.} Rbc8 23. Rfe1 Rc5 (23... Nf3+ 24. Kg2 Nxe1+ 25. Rxe1 { looks like a free exchange, but upon closer inspection it is unclear if the rook on e1 is worth less than the knight on d4.}) 24. Qd1 Bxf5 25. Nxf5 Nxf5 26. exf5 {Mamedyarov decides to swap some pieces. The structural weakness of f6 is now hidden behind the f5 pawn, so it is not a problem for the moment. Meanwhile Black has active pieces and pressure on c4.} Rd8 27. Qh5 Kg7 { Wouldn't want to allow a queen to h6.} 28. Rc3 (28. Qg4+ Kf8 29. Qh5 {would ask for a draw, but Black doesn't have to oblige.} Ke7 $5) 28... h6 29. Ree3 $6 {White's strange configuration with the rooks I can only guess is aimed at opening the kingside somehow. However it simply does not work, and now Black takes the opportunity to open up the position.} a4 30. Qe2 d5 $1 {The break exposes a couple of key features of the position: one is that White gets backrank mated in any many variations as long as the queen is on b7, the other is that the pawn on b3 can potentially become a monster.} 31. Qf3 Rdc8 $1 32. cxd5 Rxc3 33. Rxc3 Rxc3 34. Qxc3 Qxd5 {The queenendgame is lost for White. There will be no defense against Qd1-c2.} 35. Qb4 h5 $2 {Black's king is very safe against perpetuals, so this wasn't necessary.} (35... e4 $1 36. Qxa4 Qd1+ 37. Kg2 (37. Kh2 Qe2 38. Qd4 e3 39. Qxe3 Qxb2 {changes very little.}) 37... Qf3+ 38. Kg1 e3 $19 {is a far more accurate approach.}) 36. Qxa4 Qd3 $6 37. g4 Qb1+ 38. Kg2 Qxb2 39. gxh5 Qc2 {As your computer will tell you, the drawing move here is} 40. Qg4+ (40. Qb4 $1 b2 41. h6+ $1 Kxh6 (41... Kh7 42. Qf8 Qe4+ 43. f3 $1 Qe2+ 44. Kg3 Qe1+ 45. Kg2 $11) 42. Qf8+ Kh5 43. Kg3 $1 {Again a quiet king move in a Caruana variation. This threatens a perpetual with Qh8-g8 and it cannot be stopped. Unless, of course, Black doesn't see the other threat, Qxf7 and Qg6 mate.} Qxf5 44. Qh8+ Kg6 45. Qg8+ Kh6 46. Qf8+ Kh7 47. Qxf7+ Kh6 48. Qf8+ Kg6 49. Qg8+ Kh6 50. Qf8+ Kg6 51. Qg8+ Kh5 52. Qh8+ $11) 40... Kh7 41. h6 $2 (41. Qa4 $1 {Was the only way to still keep the pawn in check. The computer still claims this is drawn.}) 41... Kxh6 42. Qg8 Qxf5 43. Qf8+ Kh5 (43... Kg6 $1) 44. f3 Kxh4 (44... Qc2+ $1 45. Kg3 Qc4 {is some computer shenanigans.}) 45. Qb4+ Qf4 46. Qxb3 Qd2+ 47. Kf1 Kg3 {This positoin is still totally winning for Black.} 48. f4+ Kxf4 49. a4 f5 50. Qb5 Qd1+ 51. Kf2 Qc2+ 52. Kf1 f6 53. Qb4+ {This just helps Black, but Caruana was busted no matter what he did.} e4 54. Qb5 Kg3 55. Qe2 Qxe2+ 56. Kxe2 f4 57. a5 f3+ 58. Kf1 e3 (58... e3 59. a6 e2+ 60. Ke1 Kg2 61. a7 f2+ 62. Kxe2 f1=Q+ 63. Ke3 Qa6) 0-1