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George Shainswit vs David Brummer
66th US Open (1965), San Juan PUR, rd 3, Jul-27
Neo-Grünfeld Defense: Non- or Delayed Fianchetto (D70)  ·  1-0



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Given 8 times; par: 38 [what's this?]

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sac: 22.Qh6+ PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
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Apr-02-20  drollere: the open g file is a glaring opportunity, and the discovered check saves the N from being captured. a simple but elegant clockwork mate.

22. Qh6+ Kh8
23. Qxf6+ Kg8
24. Rg1 Neg6

might work better?

Premium Chessgames Member
  al wazir: Black would have done better to refuse the ♕ sac:

22...Kg8 23. Qxf6 (23. Rg1 Neg6) Neg6. Now white has to swap ♕s or lose a piece.

Apr-02-20  Walter Glattke: Thought for 22.Nf5+ exf5 23.Qh6+ Kg8 24.Bxf65 Nxf5 25.Rg1+ Bg6 26.exf5 Qe7 but black can hold the game then. 22.Bxe6 Bxe6 23.Rg1+ Kf7 24.Qh6 N7g6 seems to win with much work. 22.Qh6+ Kg8 23.Rg1 N7g6 24.Nxg6 Bxg6 25.Bxe6+ Rxe6 26.Rxg6+ Nxg6 27.Qxh7+ Kf8 28.Qxg6 wins: Kf7 29.Rh7+ Kd6 30.Qg3+ or others. I think, the attack to the king always win in that position.
Premium Chessgames Member
  sackman: That's a brummer. Missed that defence.
Apr-02-20  AlicesKnight: Saw the opening sacrifice but was not convinced with any follow-up if Black refused it - g6 has pieces to cover. But the acceptance meant a delightful hunt endng wth mate by "the Achilles' heel".
Apr-02-20  Brenin: I agree with < AlicesKnight>: I got the game line, but simply assumed White would have enough fire-power for an eventual win after 22 ... Kg8 or Kh8, without working out any details. In this sort of neo-Grunfeld, an early f5 by Black is advisable to get some counterplay. Although it looks ugly, 12 ... h5 might have been better than allowing White's h-pawn advance.
Apr-02-20  TheaN: White can play <22.Qh6+ +-> and fuel his attack decisively.

Mainly on account of 22....Kxh6? 23.Nf5++ Kg5 (Kg6 24.Bh5+ Kg5 25.Rg1+ Kf4 26.Rg4#) 24.Rg1! and mate in all variations, the base threat Bh5+ or Bxf5+ with Rg4#. The 'escape' 24....Kf4 runs into 25.Rf3+ forcing the king back: 25....Kg5 26.Bh5+ Kxh5 27.Rh3# and 24....Qxd4 is fruitless after 25.Bh5+ Kf4 26.Rg4+ Ke5; escaped, sure, 27.f4#.

Black can and should decline the sac, but as proposed, then White has been allowed to play Qh6+ without any drawbacks; either Qxf6 or Rg1 will follow with a position Black simply cannot hold as his defensive pieces aren't properly coordinating.

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  chrisowen: Morning brigadier h6 3+0.
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  chrisowen: Amor fati?
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  chrisowen: Testing one two?
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  beatgiant: <al wazir>
22...Kg8 23. Rg1 Neg6 <24. Bf5> looks like it would allow White to break through on g6 soon.

Similarly, 22...Kg8 23. Rg1 Neg6 <24. Bxe6!> looks like it works, because if Black tries to keep g6 covered with 24...Rxe6, White has 25. Nf5 followed by Qg7#.

Apr-02-20  Lambda: If the king goes back, we've obviously made a useful attacking move and we can think about our next move and whether to grab the f-pawn then.
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  chrisowen: Hmmm good turned it's hair to nylon?
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  chrisowen: Pithy pithy no?
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  Jimfromprovidence: I found 22.Qh6+ Kh8 23.Qxf6+ Kg8 but thought that 24.Rg3 was next. 24 Rf3, below, with the direct threat 25 Qxf7+ is much better.

click for larger view

White picks up a piece after either 24... Nf5 or 24...Ng6.

Premium Chessgames Member
  al wazir: <beatgiant: 22...Kg8 23. Rg1 Neg6 <24. Bf5> looks like it would allow White to break through on g6 soon.> Yes, you're right. The game would have ended about as fast that way.
Apr-02-20  Walter Glattke: These so-called "Indian Defences" , me seems, are all criminal, there are holes in nearly all "Encyclopaedia" variations, 12.Be3??? is gambling, white wins this "Ency" Greenfield with 12.Bxg7 Kxg7 13.h5, i think.
Premium Chessgames Member
  beatgiant: <Walter Glattke> <12.Be3??? is gambling> What specifically do you see wrong with it?

<12.Bxg7 Kxg7 13.h5> How to follow up if Black replies 13...g5? I don't think the sac with 12. Bxg7 Kxg7 13. h5 g5 <14. Nxg5?!> is sound.

Apr-02-20  dashjon: What a Bummer for Brummer
Apr-02-20  agb2002: White is one pawn down.

The first idea that comes to mind is 22.Qh6+:

A) 22... Kxh6 23.Nf5+

A.1) 23... Kg6 24.Bh5+ Kg5 25.Rg1+ Kf4 26.Rf3#.

A.2) 23... Kg5 24.f4+ (24.Rg1 Qxd4)

A.2.a) 24... Kxg4 25.Rg3+ and mate next.

A.2.b) 24... Kxf4 25.Rf1+ Kg5 (25... Kxg4 26.Rg3+ and mate next) 26.Rg1 (threatens 27.Bh5+ Kf4 28.Rg4#)

A.2.b.i) 26... e(N)xf5 27.Bxf5+ Kf5 28.Rg4#.

A.2.b.ii) 26... Kf4 27.Rf3+ Kg5 28.Bh5+ Kxh5 29.Rh3#.

A.2.b.iii) 26... Kg6 27.Bh5#.

A.2.c) 24... Kg6 25.Bh5#.

B) 22... Kh8 23.Qxf6+ Kg8 24.Rg1 looks very good for White.

C) 22... Kg8 23.Qxf6 with the same conclusion.

Apr-02-20  agb2002: I forgot 26... Qxd4 in my line A.2.b, when White loses all the advantage. However, 26.Be2 instead of 26.Rg1, still forces mate.
Apr-02-20  3PawnAttack: Isn't this considered a pure mate??
Apr-02-20  schachfuchs: A.2.b)24.f4+ Kxf4 25.Rf1+ Kg5 26.Rg1

A.2.b iv)26...Qxd4 27.Nxd4 f5 28.exf5 exf5 29.Bxf5+ Kf6 +0.17

Apr-02-20  schachfuchs: Ah yes, agb2002 got it...
Apr-02-20  Brenin: <beatgiant> After 12 Bxg7 Kxg7 13 h5 g5 the sacrifice 14 Nxg5 fxg5 15 Qxg5+ Kh8 indeed looks bad for White, with the Q having inadequate attacking support. Better is a steady preparation for d5, with Rd1 (or even 0-0-0), Bd3-c2 (or Be2), and possibly 0-0 and Rfe1. In this line White's position looks rather more comfortable than Black's.
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