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Date: 08 May 2006 23:41:45
From: ben carr
Subject: Tactical help needed
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There is a sacrifice that involves Bxh7+ Kxh7, Ng5+. I think its names
somthing like The Greco Sacrifice but I dont really know. I cant find my
notes that have the analysis for the positions after black plays Kg6.
Can anyone give me a little analysis for the next 3 or 4 moves, or even
a game or two that has this sacrifice? I come across the opportunity to
use this combination every now and then, but I dont remember how to
follow up on the attack and dont win as often as I should. Any help is
appreciated.
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Date: 09 May 2006 13:19:57
From: Ray Gordon
Subject: Re: Tactical help needed
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> There is a sacrifice that involves Bxh7+ Kxh7, Ng5+. I think its names
> somthing like The Greco Sacrifice but I dont really know. I cant find my
> notes that have the analysis for the positions after black plays Kg6.
> Can anyone give me a little analysis for the next 3 or 4 moves, or even
> a game or two that has this sacrifice? I come across the opportunity to
> use this combination every now and then, but I dont remember how to
> follow up on the attack and dont win as often as I should. Any help is
> appreciated.
This sacrifice depends on many factors, and can result from several
different openings.
Generally, if you can throw a bishop onto f5 (f4 for white), you can negate
matters, plus there is counterplay involving giving back the piece with Nf6
and clearing a pawn.
The sac is so situation-specific, however, that general advice is often
useless.
--
"Google maintains the USENET." -- The Honorable R. Barclay Surrick, Eastern
District of PA Judge
From Parker v. Google, E.D.Pa. #04-cv-3918
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Date: 09 May 2006 06:39:28
From: Ron
Subject: Re: Tactical help needed
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In article <[email protected] >,
[email protected] (ben carr) wrote:
> There is a sacrifice that involves Bxh7+ Kxh7, Ng5+. I think its names
> somthing like The Greco Sacrifice but I dont really know. I cant find my
> notes that have the analysis for the positions after black plays Kg6.
> Can anyone give me a little analysis for the next 3 or 4 moves, or even
> a game or two that has this sacrifice? I come across the opportunity to
> use this combination every now and then, but I dont remember how to
> follow up on the attack and dont win as often as I should. Any help is
> appreciated.
Vukovik's book ("The art of attack in chess") has a great chapter on
this sacrifice, exploring all three of the main defenses (black plays
Kg8, Kh6, or Kg6 in response to the N check.)
Kg6 is often the toughest defense to crack, often leading to unclear
positions where white has a pawn or two and very strong pressure against
the enemy king, but calculating the sacrifice out completely is beyond
the ability of many players. (That being said, it's apparently a very
psychologically difficult move to play. I've played more than one game
where my opponent player Kg8 despite the fact that Kg6 was unclear, and
Kg8 led to mate in a few moves).
Common themes by white are h4-h5 (note that in some positions the pawn
getting to h5 is mate, so black has to react to h4 with Rh8) and Qg4,
threatening discovered check. Note that black often responds to Qh5 with
f5 when the tempting capture exf6 ep is often wrong, as it gives the
black king a new flight square (f6) for his king.
So you often want to respond to Qg4 f5 with Qg3.
In any event, you really should read Vukovic's chapter on this
sacrifice. The whole book is fantastic (one of the few truly enduring
classics in chess literature) but that chapter is basically must-read
for people who like the Greek Gift sacrifice.
-Ron
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Date: 09 May 2006 13:21:24
From: Ray Gordon
Subject: Re: Tactical help needed
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> Kg6 is often the toughest defense to crack, often leading to unclear
> positions where white has a pawn or two and very strong pressure against
> the enemy king, but calculating the sacrifice out completely is beyond
> the ability of many players. (That being said, it's apparently a very
> psychologically difficult move to play. I've played more than one game
> where my opponent player Kg8 despite the fact that Kg6 was unclear, and
> Kg8 led to mate in a few moves).
Yes, Kg6 is often the only option Black has to save the game, and often it
is winning.
> Common themes by white are h4-h5 (note that in some positions the pawn
> getting to h5 is mate, so black has to react to h4 with Rh8) and Qg4,
> threatening discovered check. Note that black often responds to Qh5 with
> f5 when the tempting capture exf6 ep is often wrong, as it gives the
> black king a new flight square (f6) for his king.
>
> So you often want to respond to Qg4 f5 with Qg3.
Don't forget Qd3+ against Kg6, followed by Qh3.
> In any event, you really should read Vukovic's chapter on this
> sacrifice. The whole book is fantastic (one of the few truly enduring
> classics in chess literature) but that chapter is basically must-read
> for people who like the Greek Gift sacrifice.
Or just play the positions over with a computer!
--
"Google maintains the USENET." -- The Honorable R. Barclay Surrick, Eastern
District of PA Judge
From Parker v. Google, E.D.Pa. #04-cv-3918
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Date: 08 May 2006 21:56:50
From: Nick
Subject: Re: Tactical help needed
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ben carr wrote:
> There is a sacrifice that involves Bxh7+ Kxh7, Ng5+.
> I think its names somthing like The Greco Sacrifice
> but I dont really know.
It's been called the 'Greek Gift'.
> I cant find my notes that have the analysis for the positions after
> black plays Kg6. Can anyone give me a little analysis for the
> next 3 or 4 moves,
I don't know how to give any analysis for an invisible position.
> or even a game or two that has this sacrifice? I come across the
> opportunity to use this combination every now and then, but I dont
> remember how to follow up on the attack and dont win as often as
> I should. Any help is appreciated.
Read 'The Art of Attack in Chess' by Vukovic, wherein
there's a chapter about 'the classic bishop sacrifice'.
I also should read that book when I have enough time. :-)
--Nick
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