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Efim Geller vs Josif Yefimovich Vatnikov
URS-ch sf (1950), Kiev USSR
Sicilian Defense: Fischer-Sozin Attack. Main Line Sherbakov Variation (B89)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-29-15
Premium Chessgames Member
  perfidious: <qqdos: 13...f6? was Black's mistake. The correct move is 13..Nxb3! as played in Bilek vs Petrosian, Oberhausen, 1961 (0-1) 19m. The following year Fischer found an improvement against Korchnoi, Curacao, 1962 13...Nxb3 14.Nc6 Qd6 15.Qxd6! Bxd6 16.axb3 Be6 17.Na7 Rb8 18.Ra6? (better 18.Ne4! aiming for 19.Nd6) Nf6 19.Rb6 Rxb6 Bxb6 20.Rb8 .... but Fischer eventually lost in 45 moves.>

This, too, is not the whole story: Fischer played very weakly in the subsequent ending to lose from the position given after twenty moves.

Jan-27-18
Premium Chessgames Member
  Penguincw: Video analysis of this game: https://www.youtube.com/watch?v=JWC....
Jan-28-18
Premium Chessgames Member
  Big Pawn: Some 23 years ago or do, Joseph Vatnikov analyzed a game with me at my old chess club.
Feb-26-20  saturn2: 17. Ng6+ hxg6 18. e7 Qxe7 (otherwise exf8+) 19. Nxe7 wins material and the queen or rook can check soon on h file
Feb-26-20
Premium Chessgames Member
  agb2002: Black threatens B(N)xe6.

The knight on e7 blocks the pawn fork. Therefore, 17.Ng6+ hxg6 18.e7 wins decisive material.

Feb-26-20  lentil: also note that 17. ... Kg8 18 Nfe7+ forces win of the Q.
Feb-26-20  Walter Glattke: 17.-Kg8 18.N5e7+ Qxe7 19.Nxe7+ Kh8 20.Bxd4 also wins. Possible seems 17.Nc6 Qc7 18.e7 Rf7 19.Qh5 g6 20.Qh6 gxf5 21.Qf8+ Rxf8 22.exf8Q#
Feb-26-20  saturn2: <Walter Glattke 17 Nc6> is not possible.
Feb-26-20  Walter Glattke: saturn2, is allowed, with the rules, 17.Ne7-c6 Nxc6 18.Qxd8 Nxd8 19.e7 Rg8 20.exd8Q not sure, whether this could not be played.
Feb-26-20  Walter Glattke: 19.e7 Ne6! o.k. no good continuation
Feb-26-20  saturn2: <Walter Glattke> I was thinking of .....19. e7 <Ne6> 20. exf8=Q+ Nxf8 and white has no advantage.
Feb-26-20  cocker: Interesting to see Geller playing the 'Fischer' attack in 1950.
Feb-26-20  Walter Glattke: It's confusing, 17.Nc6 Nxc6 18.e7 so 17.Nc6 similar to 17.Ng6+ or 17.Nc6 Ne2+ 18.Qxe2 Qc7 19.e7 Rf7 20.Nd8 Rxe7 21.Nxe7 Qxe7 22.Nc6 I am confused, but 17.Ng6+ does not to be the only move here.
Feb-26-20  RFW3: <saturn2> After .19. e7 <Ne6> 20. exf8=Q+ Nxf8....

21. Qxd8

Feb-26-20  Walter Glattke: Another idea could be 17.Nc6 Qc7 18.e7 Rg8 19.Nd8 h6 20.Nf7+ Kh7 21.Nxd4 Qxe7 22.Qf3, so 19.-Rf7 get mate, see above.
Feb-26-20  Andrew Chapman: Nc6, Qd5 and black is not lost.
Feb-26-20
Premium Chessgames Member
  malt: Went for 17.Ng6+ hg6
(17...Kg8 18.e7 Q:e7 19.Nf:e7+ Kf7 20.N:e5+ )

18.e7 Qc7 19.ef8/Q+ Kh7 20.Qg4 N:f5
(20...B:f5 21.Qh4# )

21.R:f5 B:f5 22.Qh4#

Feb-26-20  Walter Glattke: 17.Nc6 Qd5 18.e7 Rg8 19.Nfxd4 exd4 20.Nxd4 Bb7 21.Qg4. Little advantage only. Threatens Rad1 now, but no option to 17.Ng6+.
Feb-26-20
Premium Chessgames Member
  chrisowen: I fell by the wayside bourbon?
Feb-26-20
Premium Chessgames Member
  chrisowen: With angles?
Feb-26-20  Cheapo by the Dozen: Cool. Unblock the pawn. Also:

1. Declining the sacrifice is horrible because White checks with the other knight, winning the queen due to a mating net.

2. If Black lets things hang to the pawn fork and keeps capturing knights, he loses more than a queen for those knights, because White takes the rook and promotes.

Feb-26-20  RandomVisitor: After 13.fxe6


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Stockfish_20021515_x64_modern:

<45/75 04:50 +0.02 13...fxe6 14.Bxe6+ Bxe6 15.Rxf8+ Bxf8 16.Nxe6 Qxd1+ 17.Rxd1> h6 18.Nxf8 Kxf8 19.Nd5 Rd8 20.Rf1+ Kg8 21.Nb4 Rd6 22.b3 Nf6 23.Rc1 Kf7 24.Kf1 Ke6 25.Ke2 Nb7 26.Na6 Rc6 27.c4 Ng4 28.Bg1 Nf6 29.h3 Rc8 30.Be3 h5 31.b4 Nd6 32.c5 Nf5 33.cxb6 Rxc1 34.bxa7 Rc8 35.a8Q Rxa8 36.Nc7+ Kd6 37.Nxa8 Nxe3 38.Kxe3 Nd5+ 39.Ke4 Nxb4 40.Nb6 Kc6

Feb-26-20  TheaN: Surprisingly easy Wednesday, as 17.Ng6+ jumps out from a mile ahead. The only reasonable alternative would be 17.Qh5 which fails. After <either> Black move I'd play 18.e7, also Kg8: I don't see how not taking Ng6 makes e7 worse and indeed, Black collapses even faster in this line. 18.Nfe7+ wins but why change a winning plan :>.
Feb-26-20  TheaN: Interestingly after 17.Ng6+ Kg8 18.e7 White threatens mate on f8 and to win <two> queens by exd8=Q. That's why 18.e7 is stronger than 18.Nfe7+. The only move that prevents both moves is Nd6 (18....Ne6 19.exf8=Q+ Nxf8 20.Qxd8): the easy move there would be 19.exd8=Q, but apparently 19.exf8=Q+ Qxf8 20.Nfe7+ Kf7 (Qxe7 21.Nxe7+ 21.Nxf8 with 22.Nxc8) 21.Nxf8 Kxe7 22.Bxd4 exd4 23.Qxd4 +- and White comes out with a piece on top as KxN QxN+.
Feb-26-20  TheaN: A piece, on top of the queen, don't get me wrong. Black's incredibly and hopelessly lost :>
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