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Nick de Firmian vs Nicholas J Patterson
2nd Lloyds Bank Masters Open (1978), London ENG, rd 4, Aug-26
Sicilian Defense: Najdorf. Poisoned Pawn Variation (B97)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Aug-25-12  Abdel Irada: <Tiggler>: <... Was it you, or another guru, who recently warned against accepting anyone else's analysis, without scepticism?>

Touche. :-D

Aug-25-12
Premium Chessgames Member
  morfishine: Congratulations to all those who found winning line(s)

As for me, I'm the fisherman with a nice fish brought up along side the boat after a good fight; then at the last second, he flips off. I can only find consolation in that I'm using the right bait

Aug-25-12  Prudov: Very difficult? Today I immediately saw the solution to a Saturday puzzle; the first time in years!
Aug-25-12  Funology: <sevenseaman> Ah, I see it - the Bishop can't be on d3 and f1 at the same time! I was indeed hallucinating.
Aug-25-12  Octal: Does 19 Bf6 also work?
Aug-25-12
Premium Chessgames Member
  paulalbert: I'll give myself only 1/2 credit on this. Visualized to 21 exf6ch but was not sure of followup versus 21.. Kg8 defense. I saw that black can't take Kxf6. I didn't visualize that I could allow 22.. Qxe1ch after 22 Qxh6 because 23 Bf1 block leaves only some Q giveaway moves by black before Qg7#. Rxg7ch seemed like the obvious starting candidate move, but the followup Bf6ch perhaps somewhat subtle. Here you have to be mindful right from the beginning of black Q's potential threat to taking the white R on e1 with check, and the combined defensive and offensive role of the white B on d3. Instructive puzzle!
Aug-25-12  westomer: after Qxh6 Qxe1 Bf1 Qxg3 Qh7+ isn't a mate because the bishop is on f1
Aug-25-12
Premium Chessgames Member
  kevin86: Nick vs Nick? I had the right moves,but not the right order.
Aug-25-12  Lykos: If immediately

19.Qxh6 then Qxe1+
Bf1 Bc5+

Therefore to remove Be7 first
is necessary

Aug-25-12  James D Flynn: Black is a pawn up but his K position is under attack and White can win 2 pawns by 19.Bf6(threatening mate in 3)Bxf6 20.exf6 Qxd2 21.Rxg7+ Kh8 22.Rxh7+ Kg8 23.Nxd2and Blacks h pawn will fall and his K remains under attack. Whites would love to play Qxh6 but if 19.Qxh6 Qxe1+ 20.Bf1 Qxg3 wins for Black. However,19.c3 obviously comes into consideration. The only immediate check that White has is 19.Rxg7+ Kxg7 20.Bf6+ Bxf6 21.exf6+ Kg8 22.c3 Qb6+23.Kh1 or Nd4 and Black will clearly have problem defending against Qxh6. Candidate Bf6,c3,and Rxg7+.
19.Bf6 Bxf6 20.exf6 Qxd2 21.Rxg7+ Kh8 22.Rxh7+ Kg8 23.Nxd2 (now White threatens Re3 and Rg3+) Rfe8(not d4 24.Re4 then Rh4 is equally hopeless for Black) 25.Rf1 Ne4 26.Rxh6 Nxd3 27.cxd3 Re2 and White remains a P up but Black has counter-play. 19.c3 Qb6+ 20.Kh1 Bxh4 and Black is winning.
19. Rxg7+ Kxg7 20.Bf6+ Bxf6 21.exf6+ Kg8(not Kxf6 22.Qxh6#) 22.c3 Qb6+ 23.Nd4(not Kh1 Rfe8 24.Rf1 Qe3 and Black wins)Nxd4 24.Qxh6 Nf3+ 25.Kh1 and Black has only Qg1+ 26.Rxg1 before mate on either g7 or h7.
Aug-25-12  rapidcitychess: I got this one after a somewhat cursory glance.

I saw this game as a war in an urban city, rolling a car down a hill to blow up mines, so you can send in the foot soldiers to clean up the base. You sacrifice safety and men for one goal: victory.


click for larger view

*compulsory sound effect*

And victory you shall get; your rooks and bishops blood has not been wasted. :>

Aug-25-12
Premium Chessgames Member
  Jimfromprovidence: I had problems with this puzzle. I struggled with the 20...Kg8 variation for a while.

I ended up with 21 Qxh6 Qxe1 22 Bf1 Qe3+ 23 Qxe3.


click for larger view

Here I thought, black's OK; he's down a queen and a pawn for two rooks and is about to take white's bishop.

Unfortunately for black after 23..Bxf6?!, white has 24 exf6.


click for larger view

A forced mate ensues, beginning with 24...Ne7 25 Qg5+.

Aug-25-12
Premium Chessgames Member
  chrisowen: Delicious in eminate dogger g3 eli game trounces in g7 lesson slide away it o a system in or bet bishop have forge the iron queen takes h6 eg seeing good rook crashes it kingg8 (obliged to) recapture time for sharp bishop to hone in f6 light edge significant as manic brother d3 can double layer f1 if time for black queen blowing in wind Qxe1 missed his having bishop cover once in chaplain sign of f6, book king queenh6 21...Qxe1+ bf1 got sand i g8 unravel mystery it honour in e3 sacrifice ar b4 you see klepto timber in e1 e3 all setter to jettison in d3 saving grace ditto for him inceed it pointing 20.bf6+ king stays put Nick entices lol why be7 grabs you f6 lanky it h6 or ace in hello h6 ping queen dint b1f light won heffa h6 lumping up ply it smack queen I near aim rover in g7#.
Aug-25-12  scormus: That's how to deal with the Poisoned Pawn!!!
Aug-25-12  Isbjorn: <Octal: Does 19 Bf6 also work?> 19. Bf6 was my move too. It allows a queen trade so I don't know how good it is.
Aug-25-12  Patriot: <<Isbjorn>: <Octal: Does 19 Bf6 also work?> 19. Bf6 was my move too. It allows a queen trade so I don't know how good it is.> The immediate queen trade loses to a mate: 19.Bf6 Qxd2 20.Rxg7+ Kh8 21.Rh7+ Kg8 22.Rh8#. If you mean 19.Bf6 Bxf6 20.exf6 Qxd2 21.Rxg7+ Kh8 22.Nxd2 then yes, that is winning also.
Aug-25-12
Premium Chessgames Member
  FSR: 19.Bf6! Bxf6 (19...Qxd2? 20.Rxg7+ Kh8 21.Rh7+ Kg8 22.Rh8#; 19...g6 20.Qxh6! Qxe1+ 21.Bf1 and White mates) 20.gxf6 g6 21.Qxh6! Qxe1+ 22.Bf1 followed by Qg7#. But 20...Qxd2 21.Rxg7+ Kh8 22.Nxd2 isn't so clear.
Aug-25-12
Premium Chessgames Member
  FSR: Very nice finish. I didn't see the follow-up 20.Bf6+!
Aug-25-12  Abdel Irada: <Funology: <sevenseaman> Ah, I see it - the Bishop can't be on d3 and f1 at the same time! I was indeed hallucinating.>

Is it time to introduce quantum pieces?

Aug-25-12  Abdel Irada: <rapidcitychess>: <I saw this game as a war in an urban city....>

Would that be as distinguished from a rural city? Or perhaps a rapid one?

Aug-25-12  rapidcitychess: Merely an artistic pleonasm. :>
Aug-25-12
Premium Chessgames Member
  chrisowen: <rapidcitychess> By going to the wall it is eyra put for?
Aug-25-12
Premium Chessgames Member
  Once: If I might be allowed a slight deviation, the definition of a English city used to be anywhere with a cathedral. This has meant that we have some quite small cities which you would probably not call urban. More recently, cities have been designated by a special charter, whether they have cathedrals or not.

We also have a concept of "garden cities" - such as Welwyn Garden City - which were specifically designed to be less urban in nature.

So it follows that if you can have a non-urban city, you ought to be able to have an urban one too.

Aug-25-12
Premium Chessgames Member
  agb2002: White has an extra pawn.

Black threatens 19... Qxh4 or 19... Qxd2 and 20... Bxh4.

The obvious 19.Bf6 only seems to work if Black doesn't play 19... Bxf6, for example, 19... Qxd2 20.Rxg7+ Kh8 21.Rh7+ Kg8 22.Rh8#.

This suggests a more forcing move, like 19.Rxg7+ Rxg7 (19... Kh8 20.Qxh6#) 20.Bf6+:

A) 19... Kg8 20.Qxh6

A.1) 20... Qxe1+ 21.Bf1 Bxf6 22.exf6 Qe3+ 23.Qxe3 Nd8 (23... Rfc8 24.Qh6 and mate next) 24.Qh6 Ne6 25.Bd3 and mate in two.

A.2) 20... Bxf6 21.exf6 Qg4 22.Qh7#.

B) 19... Bxf6 20.exf6+ Kg8 (20... Kxf6 21.Qxh6#; 20... Kh8 21.Qxh6+ Kg8 22.Qg7#) 21.Qxh6 transposes to A.

Aug-25-12  ajax333221: very difficult? I guess I was lucky by exploring the right combination then... That, or this was wrongly rated
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