The U.S. Championship: Nakamura is Still Half a Point Ahead of Kamsky. The "Echo" of the Match Played in Moscow

Время публикации: 14.05.2012 19:39 | Последнее обновление: 30.08.2012 13:40

Both of the rating favourites were Black in the 6th round of the ongoing U.S. Championship  - Hikaru Nakamura hold against Varuzhan Akobian, while Gata Kamsky drew against Yury Shulman. Nakamura is still half a point ahead of Kamsky and leads with 4.5 points out of 6. 

Stripunsky - Lenderman and Onischuk - Ramirez also finished peacefully. 

The round was marked with only two decisive games - Yasser Seirawan (the veteran hasn't drawn yet) defeated Ray Robson, while Hess took an upper hand on Kaidanov. 


Kaidanov lost second game in a row. (Photo uschesschamps.com)

The same system as in the 2nd game of the World Championship match Anand - Gelfand was played in the encounter below (on move 10 Kaidanov chose a more popular continuation Qc2 instead of Rc1).

KAIDANOV - HESS

15...Bg4!
Perhaps, this continuation didn't take place in practice, but was largely analyzed in the commentaries for the games. GM Avrukh mentioned 16.Ne5 Rc8 17.Qb2 Rc5 18.f4 Rxd5 in the Chess Informant (there are some other possibilities - CN) 19.Bc4 Rc5 20.Qxd4 Bxe5 21.Qxd8 Rxd8 22.fxe5 Rxd2 23.exf6 gxf6 24.Rxf6 Bh5!, and Black holds the endgame.
In the game the following continuation took place 
16.Nxd4(?!) Rc8 17.Qb1 Rc5!

In this comfortable position for Black, Kaidanov chose complications that turned out to be unfavorable for him.
18.Bg5? Rxd5 19. Bxh7+ Kh8 20.Nf5

Black could have tried 20...g6!. Hess's choice
20...Nxh7!? 21.Bxd8 Bxf5
is less accurate, but still looks quite promising.

So, Kaidanov failed to cope with the activity of the perfectly coordinated Black pieces.   
22.Qc1 Rxd8 23.Rd1 Bd3 24.Rfe1 Kg8 25.Qc3 Nf6 26.h3 Bb8 27.Re3 Bb5 28.Rxd5 Nxd5 29.Qd4 Bc7 30.Re1 Nf4 31.Qa1 Bb6 32.Rd1 Bd4 33.Qb1 Bd3 0-1

In the 5th round of the Women's championship only one of the players sharing 1st place managed to gain victory. Irina Krush beat Tatev Abrakhamyan and grabbed the sole lead with 4 points out of 5. 
Anna Zatonskih drew against Viktorija Ni and is half a point behind Irina Krush. Iryna Zenyuk lost against Rusudan Goletiani and shares 3rd-5th places with her rival and Sabina Foisor. 

[Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Kaidanov, G."] [Black "Hess, Ro"] [Result "0-1"] [ECO "D45"] [WhiteElo "2594"] [BlackElo "2635"] [PlyCount "66"] [EventDate "2012.05.08"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 a6 6. b3 Bb4 7. Bd2 O-O 8. Bd3 Bd6 9. O-O Nbd7 10. Qc2 e5 11. cxd5 cxd5 12. e4 exd4 13. Nxd5 Nxd5 14. exd5 Nf6 15. Rae1 Bg4 16. Nxd4 Rc8 17. Qb1 Rc5 18. Bg5 Rxd5 19. Bxh7+ Kh8 20. Nf5 Nxh7 21. Bxd8 Bxf5 22. Qc1 Rxd8 23. Rd1 Bd3 24. Rfe1 Kg8 25. Qc3 Nf6 26. h3 Bb8 27. Re3 Bb5 28. Rxd5 Nxd5 29. Qd4 Bc7 30. Re1 Nf4 31. Qa1 Bb6 32. Rd1 Bd4 33. Qb1 Bd3 0-1 [Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Stripunsky, A."] [Black "Lenderman, A."] [Result "1/2-1/2"] [ECO "B12"] [WhiteElo "2562"] [BlackElo "2587"] [PlyCount "100"] [EventDate "2012.05.08"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Be3 e6 5. Nd2 Nd7 6. Ngf3 Ne7 7. Be2 Bg6 8. Nh4 Nf5 9. Nxf5 Bxf5 10. h4 h6 11. h5 c5 12. Bd3 Bxd3 13. cxd3 cxd4 14. Bxd4 Nb8 15. Be3 Nc6 16. d4 Bb4 17. Qg4 Bxd2+ 18. Bxd2 Qb6 19. Bc3 O-O 20. O-O f5 21. exf6 Rxf6 22. Rae1 Ne7 23. Re5 Raf8 24. Rfe1 Nf5 25. a3 R8f7 26. Qd1 g5 27. R1e2 Ng7 28. Qa4 Rf5 29. Rxf5 Rxf5 30. Qd1 Qc7 31. g4 Rf3 32. Bd2 Rd3 33. Qe1 Rxd4 34. f3 Rd3 35. Kg2 e5 36. Bc1 Qf7 37. Re3 Rxe3 38. Bxe3 d4 39. Bd2 Qd5 40. Qb1 d3 41. Qc1 Ne6 42. Qc8+ Kf7 43. Qh8 Nf4+ 44. Bxf4 exf4 45. Qxh6 d2 46. Qh7+ Ke8 47. Qh8+ Kd7 48. Qg7+ Kc6 49. Qc3+ Kd7 50. Qg7+ Kc6 1/2-1/2 [Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Shulman, Y."] [Black "Kamsky, G."] [Result "1/2-1/2"] [ECO "A37"] [WhiteElo "2571"] [BlackElo "2741"] [PlyCount "93"] [EventDate "2012.05.08"] 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. Nf3 e5 6. O-O Nge7 7. d3 d6 8. a3 a5 9. Ne1 O-O 10. Nc2 Bd7 11. Ne3 h6 12. Rb1 Rb8 13. Bd2 b6 14. Ned5 Nxd5 15. Nxd5 b5 16. b4 axb4 17. axb4 cxb4 18. Bxb4 Nxb4 19. Rxb4 bxc4 20. Rxc4 Rb5 21. Rc1 h5 22. h4 Ra5 23. Qd2 Ra7 24. Rc2 Kh7 25. Qb4 Qb8 26. Rb1 Qxb4 27. Rxb4 Rc8 28. Rxc8 Bxc8 29. Rb6 Ra1+ 30. Kh2 Bg4 31. Bf3 Bxf3 32. exf3 Ra2 33. Kg2 e4 34. fxe4 Bd4 35. Rxd6 Rxf2+ 36. Kh3 Rd2 37. Nf6+ Bxf6 38. Rxf6 Rxd3 39. Rxf7+ Kg8 40. Rf2 Re3 41. Rf4 Re2 42. g4 Re3+ 43. Kg2 hxg4 44. Kf2 Rh3 45. Rxg4 Kf7 46. Kg2 Re3 47. Kf2 1/2-1/2 [Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Akobian, V."] [Black "Nakamura, Hi"] [Result "1/2-1/2"] [ECO "A40"] [WhiteElo "2625"] [BlackElo "2775"] [PlyCount "60"] [EventDate "2012.05.08"] 1. d4 e6 2. c4 b6 3. Nf3 Bb7 4. g3 Bxf3 5. exf3 c6 6. d5 Bb4+ 7. Bd2 Qe7 8. dxe6 Nf6 9. Nc3 O-O 10. Qe2 Re8 11. Bg2 Qxe6 12. Qxe6 fxe6 13. O-O-O d5 14. f4 Nbd7 15. Rhe1 Rac8 16. Kb1 Bc5 17. f5 exf5 18. cxd5 cxd5 19. Nxd5 Bxf2 20. Rf1 Bc5 21. Rxf5 Ne4 22. Bxe4 Rxe4 23. Bc3 Rf8 24. Rxf8+ Bxf8 25. Kc2 Re2+ 26. Rd2 Rxd2+ 27. Kxd2 Kf7 28. Ke3 Bd6 29. Bd4 g6 30. Ke4 Ke6 1/2-1/2 [Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Seirawan, Y."] [Black "Robson, R."] [Result "1-0"] [ECO "A16"] [WhiteElo "2643"] [BlackElo "2614"] [PlyCount "97"] [EventDate "2012.05.08"] 1. c4 Nf6 2. Nc3 g6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nxc3 6. bxc3 Bg7 7. Rb1 Nd7 8. c4 O-O 9. Nf3 c5 10. O-O Rb8 11. d3 b6 12. Bb2 Bxb2 13. Rxb2 Bb7 14. Qd2 Qc7 15. Qf4 Qxf4 16. gxf4 Bxf3 17. Bxf3 Rfc8 18. Kg2 e6 19. a4 a5 20. Rfb1 Kf8 21. Kf1 Ke7 22. Ke1 Kd6 23. Kd2 Kc7 24. e3 h6 25. h4 Rg8 26. Rg1 h5 27. d4 cxd4 28. exd4 Kd6 29. Kc3 Rgc8 30. Rgb1 Ke7 31. Kd3 Rd8 32. Bc6 Kf6 33. Bxd7 Rxd7 34. Rxb6 Rbd8 35. d5 Kf5 36. Rb7 Kxf4 37. Rxd7 Rxd7 38. Kd4 g5 39. hxg5 h4 40. Rb8 Kxg5 41. Ke5 exd5 42. Rg8+ Kh5 43. cxd5 h3 44. d6 f6+ 45. Ke6 Rh7 46. Rg1 Kh4 47. Rh1 Kg4 48. d7 Rh8 49. Kxf6 1-0 [Event "ch-USA 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "6"] [White "Onischuk, Al"] [Black "Ramirez, Alej"] [Result "1/2-1/2"] [ECO "D45"] [WhiteElo "2660"] [BlackElo "2593"] [PlyCount "75"] [EventDate "2012.05.08"] 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. e3 e6 6. b3 Bb4 7. Bd2 O-O 8. Bd3 Bd6 9. e4 dxe4 10. Nxe4 Nxe4 11. Bxe4 Nd7 12. O-O e5 13. dxe5 Nxe5 14. Bc3 Nxf3+ 15. Qxf3 Qg5 16. h3 Qf4 17. Qxf4 Bxf4 18. g3 Bc7 19. Kg2 Re8 20. Rfe1 Be6 21. f4 f5 22. Bf3 Rad8 23. Rad1 Rxd1 24. Rxd1 Kf7 25. Kf2 g6 26. Rd3 h5 27. h4 Rd8 28. Ke2 Rxd3 29. Kxd3 Bb6 30. Bd4 Ba5 31. Bf2 Bb4 32. Kc2 Ke7 33. Kb2 Kd7 34. a3 Be7 35. Bb6 Bf6+ 36. Kc2 Be7 37. Kb2 Bf6+ 38. Kc2 1/2-1/2 [Event "ch-USA w 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "5"] [White "Zatonskih, A."] [Black "Ni, V."] [Result "1/2-1/2"] [ECO "B41"] [WhiteElo "2510"] [BlackElo "2228"] [PlyCount "65"] [EventDate "2012.05.08"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Qd3 d5 8. Nc2 Bxc3+ 9. Qxc3 dxe4 10. Bf4 O-O 11. Rd1 Nbd7 12. Bd6 Re8 13. Be2 b5 14. c5 Nd5 15. Qd2 Bb7 16. O-O Rc8 17. b4 N7f6 18. Qd4 Qd7 19. Rfe1 Red8 20. Be5 Qe7 21. Qb2 Ne8 22. Bf1 f6 23. Bg3 f5 24. Be5 Nef6 25. Bd6 Qf7 26. g3 f4 27. Bh3 g5 28. Qe5 g4 29. Bg2 f3 30. Bf1 Re8 31. Ra1 Qg6 32. a4 Bc6 33. Nd4 1/2-1/2 [Event "ch-USA w 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "5"] [White "Krush, I."] [Black "Abrahamyan, T."] [Result "1-0"] [ECO "E63"] [WhiteElo "2457"] [BlackElo "2329"] [PlyCount "65"] [EventDate "2012.05.08"] 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. g3 d6 6. Bg2 Nc6 7. O-O a6 8. Bf4 Rb8 9. c5 b5 10. cxb6 Rxb6 11. Rc1 Bd7 12. Qd2 e6 13. e4 Ne7 14. b3 Bc6 15. Rfe1 Qa8 16. Qc2 Nd7 17. d5 exd5 18. exd5 Nxd5 19. Nxd5 Bxd5 20. Qxc7 Bxf3 21. Bxf3 Qxf3 22. Qxd7 Bd4 23. Rc2 Bc3 24. Rec1 Be5 25. Bh6 Bg7 26. Be3 Rbb8 27. Qxd6 Rbd8 28. Qc6 Qg4 29. Kg2 a5 30. h3 Qf5 31. Rc5 Qd3 32. Rxa5 Rd6 33. Qc4 1-0 [Event "ch-USA w 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "5"] [White "Kats, A."] [Black "Melekhina, A."] [Result "0-1"] [ECO "B00"] [WhiteElo "2137"] [BlackElo "2242"] [PlyCount "120"] [EventDate "2012.05.08"] 1. e4 d6 2. d4 Nf6 3. Bd3 e5 4. c3 Nc6 5. Ne2 g6 6. Na3 Bg7 7. d5 Ne7 8. O-O O-O 9. c4 c5 10. Bd2 Ne8 11. Rb1 f5 12. f4 fxe4 13. Bxe4 Nf5 14. Nc2 Nf6 15. Bxf5 Bxf5 16. fxe5 dxe5 17. Be3 b6 18. h3 Qc8 19. Kh2 Qa6 20. Na3 Bxb1 21. Qxb1 Nxd5 22. cxd5 Qxe2 23. Re1 Qa6 24. Qe4 Rad8 25. Bg5 Rd7 26. Nc4 Rf5 27. h4 Qb7 28. Ne3 Rf8 29. h5 gxh5 30. g3 Rf2+ 31. Kg1 Rxb2 32. Rf1 Rb4 33. Qf5 Rd6 34. Kh2 Qd7 35. Qf3 h6 36. Bh4 Rb2+ 37. Kg1 Qh3 38. Rf2 Rb1+ 39. Nf1 Qd7 40. Kh2 Rxd5 41. Ne3 Rd4 42. Nf5 e4 43. Qe3 Rdd1 44. Qxe4 Rh1+ 45. Kg2 Rhg1+ 46. Kh2 Rh1+ 47. Kg2 Rbg1+ 48. Kf3 Qd1+ 49. Re2 Rf1+ 50. Kg2 Rhg1+ 51. Kh2 Rxf5 52. Qxf5 Qxe2+ 53. Kxg1 Bd4+ 54. Kh1 Qe1+ 55. Kg2 Qg1+ 56. Kf3 Qf2+ 57. Ke4 Qc2+ 58. Kf4 Be3+ 59. Ke5 Qxf5+ 60. Kxf5 Bg5 0-1 [Event "ch-USA w 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "5"] [White "Baginskaite, C."] [Black "Foisor, S."] [Result "1/2-1/2"] [ECO "A40"] [WhiteElo "2358"] [BlackElo "2364"] [PlyCount "67"] [EventDate "2012.05.08"] 1. d4 g6 2. Nf3 Bg7 3. c4 d6 4. g3 Nd7 5. Bg2 e5 6. O-O Ne7 7. Nc3 O-O 8. e4 exd4 9. Nxd4 a6 10. a4 Ne5 11. b3 N7c6 12. Nde2 Nb4 13. a5 Rb8 14. Ba3 Nbc6 15. c5 dxc5 16. Bxc5 Re8 17. Ra2 Qxd1 18. Rxd1 Bg4 19. h3 Bxe2 20. Nxe2 Rbd8 21. Rd5 Nd3 22. Be3 Ncb4 23. Rxd8 Rxd8 24. Rd2 Re8 25. Nf4 Ne1 26. Nd5 Nxg2 27. Kxg2 Nxd5 28. Rxd5 h5 29. Rd7 Rxe4 30. Rxc7 Rb4 31. Rc8+ Kh7 32. Rc7 Kg8 33. Rc8+ Kh7 34. Rc7 1/2-1/2 [Event "ch-USA w 2012"] [Site "Saint Louis USA"] [Date "2012.05.13"] [Round "5"] [White "Goletiani, R."] [Black "Zenyuk, I."] [Result "1-0"] [ECO "A10"] [WhiteElo "2333"] [BlackElo "2224"] [PlyCount "115"] [EventDate "2012.05.08"] 1. c4 g6 2. g3 Bg7 3. Bg2 d6 4. Nc3 Nf6 5. Nf3 e5 6. d3 Nc6 7. Bg5 h6 8. Bxf6 Bxf6 9. O-O O-O 10. Rb1 a5 11. a3 Bg7 12. b4 axb4 13. axb4 Ne7 14. Qc2 c6 15. Nd2 d5 16. Rfd1 Be6 17. Nb3 Nf5 18. Nc5 Nd4 19. Qb2 Ra7 20. e3 Nf5 21. cxd5 cxd5 22. e4 dxe4 23. Nxe6 fxe6 24. Bxe4 Qb6 25. Ra1 Rfa8 26. Rxa7 Rxa7 27. Ne2 Ra4 28. Rb1 Kh7 29. Kg2 Nd4 30. Nxd4 exd4 31. h4 Qb5 32. Qb3 Ra6 33. Qc2 Rd6 34. Qc7 Rd7 35. Qc8 Re7 36. Ra1 Qd7 37. Qc5 Kg8 38. Ra8+ Bf8 39. Qe5 Rg7 40. Rb8 b5 41. Qf6 Qd6 42. Rd8 Qe7 43. Qxd4 h5 44. Rb8 g5 45. hxg5 Qxg5 46. Qc5 Qxc5 47. bxc5 Rc7 48. c6 b4 49. Kh3 Kg7 50. Rb5 Bd6 51. Rxh5 Kf6 52. Rb5 Ra7 53. Kg4 Ra1 54. Rb7 Rb1 55. Rd7 b3 56. Rxd6 b2 57. c7 Rc1 58. Rb6 1-0 

 


  


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