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Pal Benko vs Wolfram Hartmann
Norwegian Open (1984), Gausdal NOR
English Opening: Anglo-Indian Defense. Queen's Knight Variation (A16)  ·  0-1


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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Apr-15-14  PJs Studio: It's interesting how the aggressive moves by black like knight or bishop to f3 or h3 are plausible but... I still spent a minute or so evaluating those as pure fantasy before seeing the Queen sac leads to unavoidable mate.
Premium Chessgames Member
  LucB: <Once>

<But I would not recommend typing "mating positions" into google...>

Definitely not a good idea... it reminds me of when I once wanted to introduce the topic of implicit differentiation to my students and I did a search for "beautiful curves" to show them some examples of implicit curves... bad idea, baaaad idea..

Apr-15-14  independentthinker: Thank you guys. I have the Chandler book - awesome text. I will pick up the John Nunn one too.
Apr-15-14  M.Hassan: Although it is categorized as "Easy", I just failed to solve it and looked at the game. I am also not ashamed to declare it!
Apr-15-14  BOSTER: <PJs Studio I still spent a minute or so evaluating those as pure fantasy before seeing the Queen sac>.

There is no need to have any fantasy.
You need to recognize <pattern>. I remember such <pattern> (diagram)

click for larger view

White to play.
As clear as <FSR> the the unforeseen episode how <Dzindi kicked the set into the water>.

Premium Chessgames Member
  FSR: <independentthinker: Thank you guys. I have the Chandler book - awesome text. I will pick up the John Nunn one too.>

I hope that you also have <The Art of the Checkmate> by Renaud and Kahn. A classic. If you live in the U.S., you can get it used for less than $5 including postage. Wikipedia has all the familiar mating patterns,, but Renaud and Kahn also show how to set them up and defend against them.

Premium Chessgames Member
  FSR: <Sally Simpson> From your diagram, 1...Bxg2+ 2.Kxg2 Nf4+ (or 2...Nh4+) 3.Kh1 Rg1+ 4.Rxg1 Qf3+ 5.Rg2 Qxg2#. Nice.

So you're the famed G. Chandler (the same as Geoff Chandler, I assume)? That makes you the author of my favorite game where White beats the so-called Blackburne Shilling Gambit. Burgess cited it in <The Mammoth Book of Chess> and I cited it in Wikipedia:

To wit:

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4?! 4.Nxe5!? Qg5! 5.Bxf7+! Ke7 (5...Kd8!?) 6.0-0 Qxe5 7.Bxg8 Rxg8 8.c3 Nc6 9.d4 Qa5? 10.d5 Ne5? 11.Qh5! Nf7? (11...d6 12.Bg5+ Kd7 13.Qxh7 ) 12.d6+! 1–0 G. Chandler–NN, Stockbridge 1983

I love that game! Did you play 4.Nxe5!? intending to sac a piece, or did you get surprised by 4...Qg5! and then decide that the piece sac was your only chance?

Apr-15-14  RookFile: Got to love this game. Benko was winning easily, but black thought of a terrific trap.
Apr-15-14  Halldor: Here I first tried to see a mate pattern, which was easy (Bf3 and Nh3 if Pg2 had been removed). Then I saw that I could remove the Pg2 by Queensack, and everything fell into place.
Apr-15-14  Herma48852: Just because its early in the week I had to try 21... Qxg2+ and worked out: 22. Kxg2 Bf3+ 23.Kh2 Nh3#
Apr-15-14 <perfidious> Try playing poker, watching all the money go in with one card still to come, be a big favourite (only one to four cards can defeat you of forty or so) and the miracle comes true.

Final showdown from The Cincinnati Kid.

Premium Chessgames Member
  perfidious: Never seen the movie--just lived it on both sides of the equation, many times over.
Premium Chessgames Member
  Sally Simpson: Hi FSR,

Unfortunately that is me.

It was simul v a school as a favour for a lad who took the chess class. They had been primed with this trap, I faced it about 7 or 8 times. I of course knew it and either sacced on f7 or played Nxd5.

Later I figured out White can get a stonking attack with....

click for larger view

5.0-0! Qxe5 6.c3

click for larger view

But enough of that - back on thread. Same idea with a slight twist.

Kalix - Zunker, Germany 1994 (White to play)

(be careful it's not as easy as it seems.)

click for larger view


Braga - Bruned, Spain 2004

(You have seen the mating pattern - play the trick.)

click for larger view

If you run that mating pattern through any reasonable database you will find quite a lot of checkmates that were actually played. In defence of Benko it does seem that the pattern is sending no alarm bells to the defending player.

Madynski - Panek, Poland 1999
(I'll leave it to the lads to make up a 'panic' pun.)

click for larger view

White here saw the idea and sacced the exchange to pull the c4 Knight away from defending the e5 square.

1.Rxa3 Nxa3 2.Qe5.

click for larger view

Black should now pin the d4 Knight with 2..Qb6. Instead he played for a Queen swap with 2...Qc7 and White wrapped it up with 3.Qg7+ 4.Nf5++ and Nh6 mate.

Apr-15-14  PJs Studio: Boster. Even when I've never seen a mating pattern before I can usually find it fairly quickly. It's the amount of time I have to spend that I wish to improve on. Usually on Monday and Tuesdays I find the answer in five to ten seconds, but some are a little odd or awkward. This one isn't awkward, I just kept looking in the wrong direction...for less than a minute. Not too bad.

Now, if I could just get off my butt and study my strategic theory. Blech!!

Apr-15-14  LIFE Master AJ: Wow!!!!!

Mate in three, 21...QxP/g2+!, followed by 22...Bf3+; and then 23...Nh3#. (No defense, it is all forced.)

Apr-15-14  LIFE Master AJ: I'm amazed that Benko fell for this ... not totally unbelievable, but surprising! Especially since Benko - at his prime - might have been in the top ten in the world.
Apr-15-14  Cheapo by the Dozen: Nice one by expert problemist Benko. Took me a couple of minutes, since I was looking at moves to f3 or h3. But since those didn't turn out to be forcing enough -- f-pawn moves and knight retreats are strong for the defense -- I soon found

21 ... Qxg2+
22 Kxg2 Bf3+
23 Kg1 Nh3#

Apr-15-14  barryh1976: Chrisowen, thanks for the comical post.
Premium Chessgames Member
  FSR: <Sally Simpson> You needn't be so modest. Kalix - 1.Nf5 Bf6 2.Bxf6 looks easy. Of course 1.Qg7+?? doesn't work with h6 covered.

In the other game, 1.Qh6! Qf6 2.Bxf6 is curtains.

Premium Chessgames Member
  FSR: <Cheapo by the Dozen: Nice one by expert problemist Benko.>

I think you are operating under a misconception. Benko <lost> this game.

Premium Chessgames Member
  Aurora: <FSR: <Cheapo by the Dozen: Nice one by expert problemist Benko.> I think you are operating under a misconception. Benko <lost> this game.>

That's exactly Benko's problem. ;)

Premium Chessgames Member
  perfidious: <Cheapo> evidently operates under more than his fair share of misconceptions, for that is why he has, nolens volens, found himself forced to resort to cheapos.
Premium Chessgames Member
  kevin86: Yes,I erred. The ONLY mate here is 21...♕g2+ 22 ♔xg2 ♗f3+ 23 ♔g1 ♘h3#.

I was thinking about it last night. Thanks for the correction.

Apr-16-14  independentthinker: FSR - thank you, Sir.
Aug-23-17  Optimal Pieces: So the black player isn't Christer Hartman from Sweden?

In this blog post it is Christer Hartman:

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