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Johannes Luangtep Kvisla vs Nick de Firmian
Arctic Chess Challenge (2007), Tromso NOR, rd 7, Aug-04
Sicilian Defense: Najdorf Variation. Main Line (B99)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
Aug-13-07  luzhin: A brilliant attacking win by a vastly outrated player-- although clearly well-versed in the opening. 25.Kb1 is especially cool: "What can you do, now, Grandmaster?". I suppose the appropriate finish would have been 32..Ka4 33.b3+ Ka3 34.Ra5+ and mate next move.
Aug-13-07  laskereshevsky: BTW the actual Nick's elo point is 2540 and not 2637 as abowe wrote...

In any case isnt bad at all to win against a GM expecial if ure a 17 YO player like kvisla......

Few months ago I drawed a tournament game against him.....

Not bad at all if ure a born in the sixties patzer like me.....

Aug-13-07  sharkbenjamin: WOW! What an attack!
Aug-13-07  luzhin: Further research, gentlemen: it transpires that the move that so impressed me (25.Kb1) is in fact a TN. In Vasquez vs Vallejo, FIDE World Championships 2004, White played 25.Be6 and lost.
Jan-05-08
Premium Chessgames Member
  MoonlitKnight: Kvisla told me that he played Kb1 because he didn't know what to do. It clearly worked, since it provoked the mistake Bxg7 from DeFirmian. A strange slip from the GM, who is considered a theoretical expert in this line of the Najdorf.
Jan-31-08  brutishbeast: after 13. f5 why not Bxg5 instead of letting his pawn get to the 6th rank?
Jan-31-08  Shams: <brutishbeast> I can't give a specific line, but years and years of work have gone into 13...Bxg5+. I think for a while this was the move that put this, the old main line, out of fashion.
Feb-01-08  brutishbeast: thanks! :)
Jun-21-08  najdorfman: I realize that upsets are interesting to many amateur players. Here GM DeFirmian blundered on move 25...Bxg7?? Much better was 25...Kc7! 26.Rg5 (26. Rg3 Rd8 27. Rb3 a5 28. a3 Rb8 29. axb4 a4 30. Ra3 Qxb4 31. Qxb4 Rxb4 32. b3 Rh6 33.Rxa4 Rxa4 34. bxa4 Nxd7 35. cxd7 Rxf6 winning.) 26...Qc5 27. Rd5 Qf2 with two tries: A) 28. Rgxe5 dxe5 29. Qxe5+ Kb6 30. a4 bxa3 31. Rd3 Bb4! 32.Rb3 Qc5! 33. Qe1 a2+ 34. Kxa2 a5 35. c3 Rhg8 36. Qe4 Kc7 37. Qd3 Rg5 38. h3 Re5 39. Be8 Rd8 40. Qa6 Rexe8 41. Qb7+ Kd6 42. cxb4 axb4 43. Rd3+ Ke6 winning for Black. Or B) 28. Rd1 a5 29. Rxe5 dxe5 30. Qxe5+ Kb6 31. c7 Qc5 32. Qe4 Bd6 33. c8=Q Raxc8 34. Bxc8 Rxc8 again winning. I could be mistaken about all this but I suspect that the novelty 25. Kb1 will not save this branch on the Perenyi Variation of the old Main Line Najdorf. That salvation probably begins with an improvement on move 27 of the game Vasquez-Vallejo Pons, Tripoli 2004.
Oct-15-08  GreenArrow: 25.Kb1 is quite poor and as <Najdorfman> points out, 25...Kc7 is a lot better for black. The move Vasquez tried 25.Be6 is better but he strayed after this. I think here the position is still complicated enough for this line to be viable for white at even the highest level of play.

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