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Boris Gelfand vs Garry Kasparov
Reggio Emilia (1991/92), Reggio Emilia ITA, rd 5
King's Indian Defense: Orthodox Variation. Classical System Misc. Lines (E98)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Jul-09-08  ToTheDeath: 19...Nh5?! is a stunning move. I think White could get away with taking it, as Black's attacking chances are quite vague.
Apr-12-10  fischer2009: have u seen Bh3+ if the knight is taken?
Jul-03-11  swr: I think the idea is 20...Rxh5 when Black threatens all sorts of nasty things.
Oct-10-13
Premium Chessgames Member
  Chessical: Has Kasparov revealed his calculations around this Knight sacrifice?


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I would very much like to know, as I am unable to find an advantageous line for Black, e.g.

<20. gxh5> Rxh5 21. Rh1 Qh8 22. Rxh5 Qxh5 23. Nf2 Bd7; and now <24. c6> seems to leave White on top.

Jun-30-15  ColdSong: The right time has come,I think,to ask Mr Komodo or Stockfish about this old,mysterious knight sacrifice.
Jul-01-15
Premium Chessgames Member
  tamar: Interesting question for Garry. My guess is that he became intrigued with the position after 20 gxh5 Rxh5 21 Rh1 Qh8 22 Rxh5 Qxh5 23 Nf2 Nh4


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Black threatens mate on g2 and when White moves the bishop, Black will check on g2 and win the f3 pawn.

Of the three bishop moves available, only 24 Bb5 leads to a decisive White advantage

if 24 Bc4 Qg2+ 25 Ke2 Nxf3 26 Kd3 g4 and Black's two passed pawns are equal to White's piece.

if 24 Bd3 Qg2+ 25 Ke2 Nxf3 26 Qa4 Rh2 and Black is in no danger here either with g4 coming.

Only 24 Bb5 Qg2+ 25 Ke2 Nxf3 26 Qa4 g4 27 Be8+ Rxe8 28 Qd7+ Re7 29 Qxg4 allows White to give back material to consolidate and win.

24 Bb5 is particularly difficult to find because it blocks the Queen's entrance to d7 from a4, and the key is that it sacrifices itself on e8 just to eliminate the pawn on g4.

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Featured in the Following Game Collections[what is this?]
Round Five, Game #22
from Reggio Emilia 1991/92 by suenteus po 147
King's Indian - Classical System
by Chessdreamer

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