Author: blass uri
Date: 10:32:14 05/29/98
Go up one level in this thread
On May 29, 1998 at 05:01:53, Dennis Breuker wrote: >In http://www.chesscenter.com/twic/michael53.html Michael Greengard >gives some interesting analysis for the third game in the >Kramnik-Shirov match. > >This is the game in PGN: > >[Event "WCC Cand final"] >[Site "Cazorla ESP"] >[Date "1998.05.27"] >[Round "03"] >[White "Kramnik,V"] >[Black "Shirov,A"] >[Result "1/2-1/2"] >[ECO "D88"] >[WhiteElo "2790"] >[BlackElo "2710"] > >1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 >O-O 8. Ne2 c5 9. O-O Nc6 10. Be3 Bg4 11. f3 Na5 12. Bxf7+ Rxf7 13. fxg4 >Rxf1+ 14. Kxf1 cxd4 15. cxd4 e5 16. d5 Nc4 17. Qd3 Nxe3+ 18. Qxe3 Qh4 >19. h3 Bh6 20. Qd3 Rf8+ 21. Kg1 Qf2+ 22. Kh1 Qe3 23. Qxe3 Bxe3 24. Rd1 >Rf2 25. Ng1 Kf7 26. Rd3 Bb6 27. Rf3+ Ke7 28. Rxf2 Bxf2 29. Nf3 Kd6 30. >g3 Bxg3 31. Kg2 Bf4 32. Kf2 Kc5 33. Ke2 b5 34. Kd3 1/2-1/2 > >Here I quote the relevant part of what Michael Greengard wrote: > > >------------- <begin quote> >30.g3 looks like a blunder, tossing a pawn and allowing the bishop to >protect the weak e-pawn, but upon deeper inspection White has nothing >else. 30.Ng5 is the obvious move, winning a pawn and, coincidentally, >almost losing the game! You computer analysis addicts out there should >toss your Pentium 400 MHz and ChesSpank 6000 out the window on this one >as I'm sure they just LOVE 30.Ng5! I'm still looking at side lines, but >it's very hard for White to save the game as the queenside pawns are >very fast if the knight wanders that far away. (Good thing to remember >in your own games. Pawns are slow in the middlegame, but are devilishly >fast in endgames vs. knights!) > >While Black is in trouble if he tries to defend (Black loses after >30.Ng5? 30...h6 or 30...b5 and just barely draws (?) after 30...Ke7), he >can go on the offensive with 30...Kc5! and it takes some serious >acrobatics for White to even draw this position. > >[ANALYSIS LINE: 30.Ng5?] > >30...Kc5! 31.Nxh7 b5 32.g3 a5 > >(32...Bxg3? Slowing down the queenside pawns by a crucial tempo and >allowing the white king to gain several important tempi hitting the >bishop. 33.Nf8 a5 34.Kg2 Be1 35.Nxg6 Kd6 36.Kf1! Bc3 37.h4 b4 38.Ke2 >winning) > >33.Kg2 Bd4 34.Ng5 > >(This crazy line which appears to save White is probably better! Lots of >analysis needed here: 34.h4 b4 35.h5 gxh5 36.gxh5 a4 37.Nf6 Be3 38.d6 >Bg5 39.Ng4 a mistake 39.Nd7+ or Nd5 is better b3 40.axb3 a3 41.Ne3 Bxe3 42.d7 Bg5 43.h6 a2 44.h7 a1Q 45.h8Q >Qd4 46.Qf8+ Kb6 47.Qb8+ Kc6 48.Qc8+ Kb5 49.Qb7+ Kc5 50.Qc7+ Kb4 51.Qc4+ >Qxc4 (51...Ka3!? 52.Qd5! = (?)) 52.bxc4 Kxc4 = 53.Kf3 Bd8 54.Kg4 Kc5 >55.Kf5 Kd6 56.g4 Bc7 57.Kf6 Kxd7 58.g5 Ke8 59.Kg7 Bd8 60.g6 Bh4 61.Kh7 >Bf6 62.g7 Bxg7 63.Kxg7 Ke7 64.Kg6 Ke6 65.Kg5 Ke7 66.Kf5 Kf7 67.Kxe5 Ke7 >68.Kf5 Kf7 69.e5 Ke7 70.e6 Ke8 71.Kf6 Kf8 72.e7+ Ke8 73.Ke6 stalemate) > >34...b4 35.h4 a4 36.h5 gxh5 37.gxh5 b3 38.axb3 axb3 39.Nf3?! > >(39.h6! b2 40.h7 b1Q 42.h8Q Black wins the knight, but White may have a >perpetual check in here. Qg1+ 43.Kf3 Qd1+ 43.Kg2 Qd2+ 44.Kf3 Qxg5 and >the checking begins. Can White draw?) > >39...Be3 40.Ne1 (40.Nxe5 Kd4 41.d6 Kxe5 42.d7 Bb6 Black wins) 40...Kc4 >41.h6 Bxh6 42.d6 Bg5 43.Nf3 b2 44.d7 b1Q 45.d8Q Qc2+ 46.Nd2+ Qxd2+ >47.Qxd2 Bxd2 48.Kf2 Kd3 49.Kf3 Be3 Black wins. > >Whew! This is just one night's reflection, a lot of work still needs to >be done in some lines. But it's enough to see that Kramnik's 30.g3 was >the best choice! After 30...Bxg3 it’s a clear draw. (31.Ng5 now doesn't >work: 31...h6 32.Nf7+ Ke7 33.Nxh6 Bf4!) > >So it's Shirov to serve again, let's hope for an ace. >------------- <end quote> > > >Since he is convinced that no computer will see that 30. Ng5 is wrong >(is it?), I am very curious what computers will play in the position >after Black's 29th move. And maybe some computers can check his >analysis? > >Dennis.
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