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Baskaran Adhiban vs Hikaru Nakamura
Tradewise Gibraltar (2015), Catalan Bay GIB, rd 5, Jan-27
Queen's Gambit Accepted: Central. Greco Variation (D20)  ·  0-1

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jan-31-15  Marmot PFL: Maybe white was unprepared for Black's exchange sac, although Nakamura has played it before. Good technique to finally get the pieces out and win the ending.
Jan-31-15
Premium Chessgames Member
  Penguincw: Yes, Nakamura has played this opening before, but it was a blitz game, and ended in a draw.

R Wojtaszek vs Nakamura, 2014

Jan-31-15  SimonWebbsTiger: I thought for a second Naka was repeating the opening from this glorious game Aronian vs McShane, 2012

It's quite surprising, well to me at any rate, black can sac the exchange so early.

Jan-31-15
Premium Chessgames Member
  chancho: Adhiban is chump change when he plays Nakamura.

http://www.chessgames.com/perl/ches...

Jan-31-15  SirRuthless: <SimonWebbsTiger> I am not convinced he actually can. Engines hate this but for two humans duking it out over the board perhaps it is playable as a surprise weapon. When you have to win with black in an open swiss, you might resort to this sorcery to get sharp play. My gut tells me this is such an attempt and time will expose this as unsound.
Jan-31-15
Premium Chessgames Member
  chancho: I gave Adhiban the nick: Freaky Dude.

I mean, look at this!

http://i.ytimg.com/vi/gPxVtgeNfoE/m...

Jan-31-15  SirRuthless: He looks like he saw a ghost, or maybe he saw Nakamura's boot heading for his hindquarters heh. .
Jan-31-15
Premium Chessgames Member
  chancho: Haha...
Feb-01-15
Premium Chessgames Member
  patzer2: GM Nakamura enters an opening line that the computers initially under estimate.

For example, after 9...e6 Fritz 12 at lower indicates White has a strong advantage with 10. f3!? (+1.20 @ 17/40 depth).

However, after the search gets deeper the illusory advantage for 10. f3 (diagram below)


click for larger view

evaporates. Here's my move-by-move analysis of 10. f3!? with Fritz 12:

10. f3!? Nf6 (10... Nc6 11. Be3 Bb4+ 12. Kf2 Nh6 13. Ne2 O-O 14. b3 f5 15. e5 g5 16. bxc4 bxc4 17. Rb1 f4 18. Bd2 g4 19. h4 g3+ 20. Kg1 Nxd4 =) 11. Ne2 Nc6 12. b3 Nxe4 13. fxe4 Qh4+ 14. Ng3 Bb4+ 15. Kf2 Qf6+ 16. Kg1 Nxd4 17. Be3 Nxb3 18. Ra7 Qg5! (diagram below)


click for larger view

19. Bf2 (19. Bxg5?? Bc5+ 20. Qd4 Bxd4+ 21. Be3 Bxe3#) 19... Qe7 20. Qh5 Qd7! 21. Qg4 g6 22. h4 O-O 23. h5 Bc5 24. Bxc5 Nxc5 25. Qf4 Qd4+ 26. Qf2 Qe5 27. Rh3 Rb8 28. Ra5 Nb3 29. Ra3 Qd4 30. Ra2 e5 31. Rh4 Rd8 32. Ra7 Rd7 33. h6 Kf8 34. Be2 Bc6 35. Rxd7 Bxd7 36. Qxd4 exd4 37. Bd1 Nc5 38. e5 d3 39. Rd4 Be6 40. Nf1 Nd7 41. Ne3 Nxe5 42. Rd8+ Ke7 43. Rb8 c3 44. Rxb5 Nc4 45. Kf2 Nxe3 46. Kxe3 c2 47. Kd2 cxd1=Q+ 48. Kxd1 Kf6 49. Kd2 Bf5 50. Ke3 Kg5 51. Rb7 Be6 52. Rb5+ Kxh6 53. Kxd3 g5 =.

P.S.: After this long look, my instinct tells me a strong and well prepared player with the Black pieces has nothing to fear in this line. An unprepared White player, however, is in trouble in this line against a player like Nakamura.

Feb-01-15
Premium Chessgames Member
  perfidious: <Simon: It's quite surprising, well to me at any rate, black can sac the exchange so early.>

Same here, as I had never seen this till now.

At first glance, the whole business looked fishy for Black, but he clearly gets a great deal of play and, as noted by <patzer2>, can set insuperable problems before an opponent who is ill prepared.

Feb-01-15  Ulhumbrus: Instead of 5 Nc3 Edward Lasker may have given 5 ab cb 6 b3 cb 7 Bxb5+ with advantage

After 10 f3 it is up to Black to make count whatever he has got in return for the exchange.

Feb-01-15  fgh: This was seen in the Baku Grand Prix:

Mamedyarov vs Kasimdzhanov, 2014

Feb-26-15  1d410: I remember seeing this in blitz and I (evidently wrongly) thought Naka was unprepared. Here he shows how it can be done.

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