Tuesday, September 2, 2014

Born in the U.S.A.


Brief notes by 没有个性的人


Fabiano Caruana – Levon Aronian
2nd Sinquefield Cup; Saint Louis, August 30, 2014
Spanish C78

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. d3 b5 7. Bb3 0-0 8. Nc3 d6 9. a3. Here Harry Nelson Pillsbury and Siegbert Tarrasch – the so-called Praeceptor Germaniae – used to play 9. a4 – O tempora, o mores! If, instead, 9. Nd5 may follow 9. ... Na5 10. h3 Nxb3 11. Nxe7+ Qxe7 12. axb3 Bb7= Janošević – Messing, 23rd Yugoslav Chess Championship, Čateške Toplice 1968. 9. ... Na5 10. Ba2 Be6 11. Bxe6 fxe6 12. b4 Nc6 13. Bd2 d5. For 13. ... Nd4 see Topalov – Kasimdzhanov, Thessaloniki 2013. 14. Re1 Qd6 15. Na2. A novelty due to Caruans’s coach Vladimir Chuchelov. For 15. h3 Nd7 see Dominguez Perez – Karjakin, SportAccord World Mind Games, 北京市 (Běijīng) 2013. 15. ... Nd7 16. Qe2 d4. A strategic incongruity. Now that the centre is locked, White has free hand on both wings. 17. Reb1 Nb6 18. Nc1 Na4 19. Nb3 Rf7. After the game Aronian suggested the more useful 19. ... Nc3!? 20. Bxc3 dxc3 21. Qe3 Rad8 – it’s interesting! 20. Rc1 Rd8 21. Ng5 Rf6. A more consistent continuation would be 21. ... Bxg5 22. Bxg5 Rdf8 23. Rf1 with a small plus for White. 22. Qh5. After this Black’s fortress is close to collapse – then said Caruana. Anyhow, Black is reduced to a laborious defence. 22. ... h6. It is perhaps less compromising 22. ... Rh6, after which may follow 23. Qg4 and then h2-h4 (because I’m not too convinced by the variation of Ben Finegold: 23. Qf7+ Kh8 24. Qf3 Bxg5 25. Bxg5 Rf8 and... then what?). 23. Nf3 Rdf8 24. Rf1 R8f7. Curiously enough, after this careless move the Rf6 is into a deadlock! 25. Rae1 Bf8 26. h3 g6 27. Qh4 Qe7 28. Qg3 Bg7


29. Na5!! A bolt from the blue! Aronian expetced 29. Nh2 intending 29. ... Kh7 30. Ng4 Rf4! – a positional Exchange sacrifice à la Petrossiàn; if accepted, as a result White, deprived of his Queen’s Bishop, would remain weak on the black squares complex. 29. ... Nxa5 30. Nxe5!! A magnificent “point”. A routine player would have played here 30. bxa5 and submitted to Black’s Exchange sacrifice 30. ... Rxf3(!). 30. ... Nb7 31. Nxg6. Of course 31. Nxf7 Qxf7 is a nonsense. 31. ... Qd8 32. e5 Rf5 33. f4 c5 34. Nh4 Rh5 35. Nf3 Kh7. The Rh5 is badly placed and Black cannot avoid the decisive “Rollerball” on the Kingside. 36. Qg4 Rhf5 37. Nh4 Kh8. It does not make too much difference 37. ... Kg8 38. Nxf5 followed by Qg4-g6. 38. Nxf5 Rxf5 39. Qg6 Qe7 40. g4 Rf8 41. f5 Qe8 42. Qxe8 Rxe8 43. f6 Bf8 44. f7 Re7 45. Rf6 Nb6. Or, equally, 45. ... Kh7 46. Bxh6 and wins. 46. Bxh6 Nd7. 46. ... Bxh6 is refuted by 47. Rxh6+ Kg7 48. Rh7+! Kf8 49. Rf1. 47. Ref1! Black is in Zugzwang! 47. ... cxb4 48. axb4 Bxh6. On 48. ... Rxf6 49. Bxf8 Rxf7 50. Rxf6 wins. 49. Rxh6+ Kg7 50. Rh5 1 : 0. For if 50. ... Rxf7 then 51. Rh7+! winning Black’s whole army, whereas after 50. ... Nd8 51. f8=Q+! Nxf8 52. Rg5+ Kh6 53. Rg8 White wins a piece and the game.

Fabiano Caruana vs. Levon Aronian
Saint Louis, August 30, 2014
Photo: U.S. Chess Champs

No comments: