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Bent Larsen vs Aleksandar Matanovic
"Great Dane" (game of the day Sep-14-2010)
Zagreb (1965), Zagreb YUG, rd 6, Apr-??
Catalan Opening: Closed Variation (E07)  ·  1-0


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Given 23 times; par: 54 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 4 ·  Later Kibitzing>
Apr-20-12  leow: how abt 31 Qh6?
Premium Chessgames Member
  chrisowen: Eoin bet each again up it aground for nh6+ ...
See one knight in afoot ill.
Pinto e6 in coloured a g7 queen breaker mits off gxh6 mate in five. Hackee sac bind fleck in cor set rc8 ugg along in kestrel e6. Creaking rookc4 hill in exact it double in cuffed e6 and h6 clod haboob

kicking heck fought and one in heading off rookc2 aplomb in kingh2

entomb in g7 orca whale archduke prodding king one bouncebf6 in shutter

g7# effort feint acute in h6 ill let curdle night im trodden for

deliberatings often in devious again mind for c8s ke put rook suburb n

babbling e6 h6 low height in deckingg8, enforce (qxhe) < >

Apr-20-12  Bryan14: Qh6 is very elegant..
Premium Chessgames Member
  morfishine: <32.Nh6+> wins on the spot

The tempting <32.Qh6> fails to 33...Bf8

Premium Chessgames Member
  gofer: There is one move that leaps out <32 Qh6> but this goes nowhere! 32 ... Rc2+ (32 ... gxh6 33 Nxh6#) 33 Kh3 Bf8 white has two options; Bxg7 or Nxg7 but neither seems to work, so back to the drawing board. Suddenly the light dawns (after far too long analysing a bad line) and it all becomes incredibly obvious...

<32 Nh6+ ...>

32 Kh8 Bxg7#

<33 ... gxh6>
<34 Qxh6 Rc2+>
<35 Kh3 ...>

35 ... Bf8 36 Qg5#
35 ... Rxb2/f6/fxe6/Nf8/Nf6 36 Qg7#

<35 ... Bf6>
<36 Bxf6 ...>

Black still has to contend with Qg7# and Qg5#, but at the same time must not allow Qf8#. Stopping all three mates is impossible.

<35 ... Rxh2+>
<36 Kxh2 ...>

Finally, mate in one is unavoidable.

Time to check...

Apr-20-12  viking78: Thanks a lot WinKing for your analyse, overlooked 32.Qc3! after 31...fxe6, I really appreciate the line after 31...f6, thanks again.
Apr-20-12  sevenseaman: Equal in numbers only. Black boasts a R for White's P.

'Difficult' it may be but to me it looks rather simple.

Black has no cogent answer to <32. Nh6+>


32...gxh6 33. Qxh6 and Black cannot avoid the mate by the Q supported by the B. Black can only indulge in a wishful (spite) defense thus;

33...Rc2+ 34. Kh3 Rh2+ 35. Kxh2 and now


34...Bf6 35. Bxf6 settles the win.


34...Rxb2 or fxe6 35. Qg7 or even Qg5#


32. Kh8 33. Nxf7#

Apr-20-12  sevenseaman: Its 1-0 after 32. Nh6+ and rightly too.

Those who thought about 32. Qh6 should coolly rationalize <32. Qh6> is not a check and therefore gives Black a chance to start his own checking sequence at an awkward time for White. (The latter checks can be easily handled). So whichever move 'jumps out' has to essentially be a check.

Those who have been tortured by ingenious Crafty defenses should try it today. The robot goes through all the contortions but signs the truce easily enough.

Apr-20-12  mikmik777: April 20, 2012

White to play: 32.?
Larsen vs A Matanovic

White is materially down by a rook. Also, Whites knight on e6 is hanging.

32.Nh6+ gxh6 (32. Kh8 33.Bxg7#)

33.Qxh6 Rc2+


And, neither 34. Bf8, 34. fxe6, 34. Nf6, nor 34. Rxb2 prevents mate on g7.

For example, 34. Bf8 35.Qg5+ and mate next move.
Moreover, 34. Rxh2 only prolongs the agony for Black.

Time to check.

Got it right this time..:)

Premium Chessgames Member
  gofer: <sevenseaman:>

As you obviously have <Crafty EGT> working is there any chance you can set up a link play through yesterday's puzzle and add it to yesterday's kibitz...

Korchnoi vs Yusupov, 1981

Apr-20-12  bwarnock: I wonder if Larsen saw the combination (or the possiblity of a combination) the move before and set it up with 30. Rc4 when Black's natural reply 30... Rc8 allows it to happen.

(With the Rook elsewhere Black can play 31...fxe6 after 31. Nxe6 because 32. Qc3 is no longer a double atack).....


Premium Chessgames Member
  Fusilli: I found this surprisingly easily, variations included. I am not usually this quick (or accurate) on Fridays... Either I am getting better, this was not Friday level, or I am just having a good morning...
Apr-20-12  goldenbear: I spent my time on Qh6 and I realized it didn't work so I decided that I needed to force a draw Nh6+ Kh8 Nxf7+ etc. with a repetition. I totally missed Bxg7#. I'd like to think I would have seen that in a real game.
Apr-20-12  psmith: It's obvious that White has to carry out a mating attack since otherwise he is just going to be down material. Given this I found this puzzle much easier than either Wednesday's or Thursday's.
Premium Chessgames Member
  whiteshark: <32.Nh6+!> and that's it.
Apr-20-12  sevenseaman: <gofer> Crafty link to Korchnoi-Yusopov puzzle posted in that puzzle as sought by you.

Hello <bwarnock>. I was looking for you 3-4 days ago but I was not up with the exact spellings of your handle and could not establish contact.

The reason;

click for larger view


White to play and mate in 4.

This is puzzle # BWC912 from a Reinfield book that my friend <morfishine> is reading. We both tried and could not find a 4-mate though White wins.

Could you look it over. I know you are the go to man for such doubts.

Please also examine my solution to Korchnoi vs Yusupov, 1981 and see if it is sound. (It is different, to be sure).

Apr-20-12  King Death: <sevenseaman> In your Reinfeld position White can play 1.Qf6 which threatens 2.Rg7+ 3.Bc4+ and mate but there's no forced mate in 4.
Apr-20-12  VincentL: "Difficult".

The first move that comes to mind is 32. Qh6, creating a mating net. If 32.....gxh6 33. Nxh6#. But I cannot find a good continuation after 32.....Bf8.

So I think we must start 32. Nh6+. Then if 32....gxh6 33. Qxh6. Now if 33.....Bf8 34. Qg5+ Bg7 35. Qxg7#

If 32.....Kh8. 33. Bxg7#

All other black moves allow Qg7# (the spite check Rc2+ may delay matters one move).

Lets see.

Apr-20-12  VincentL: Nailed it, I think.
Apr-20-12  sevenseaman: <King Death> Nice of you to come in. 1. Qf6 is by far the best move and we too did not see a forced 4-mate.

The book solution is <1.Rf8+ Rxf8 2.Bc4+ Kg7 3.e8=N+ Rxe8 4.Qf7#>

The solution is refuted by 1...Qxf8 to which we could find no answer(for a 4-mate).

Apr-20-12  fokers13: Saw it all to the end in little time to boot(it def helped that i didn't get sidetracked).

Nice,had little luck with Fridays recently up to today.

Apr-20-12  James D Flynn: Black threatens Rc2+ followed by Rxb2 relieving the pressure on g7 also fxf6 so White must act immediately. First candidate 32.Qh6: the Q cannot be taken because gxh6 leads to 33.Nxh6#. Black has no time for 32.Rc2+ 33.Kh3 Rxb2 34.Qxg7#. Black can defend by Bf8 or Bf6 or f6 : 32. Bf8 33.Nxf8 now gxh6 simply wins the Q. 32..Bf8 33.Nxg7 Rc2+ and then Rxb2 wins for Black. If instead 33.Bxg7 f7xe6 34.Bxf8 Nxf8 wins for Black. Second candidate 32.Nh8+ gxh6 33.Qxh6 now Bf8 allows 34.Qg5+ and mate next 33..Bf6 34.Bxf6 and there is no defense to Qg7#.
Premium Chessgames Member
  paulalbert: Thought this one was relatively easy. Looked at Nh6ch almost immediately and it seemed to force mate ( including nice Kh8 Bxg7mate variation ), but kept trying to find a defense for black after g7xh6 , Qxh6 because I thought it was too straight forward for Friday. Saw that Bf8 doesn't defend after Qg5ch and that Rc2ch and Rxh2ch were ultimately useless Zwischenzug. Finally I looked thinking I must have missed something, but pleased that I hadn't.
Premium Chessgames Member
  doubledrooks: 32. Nh6+ wins on the spot. For example:

a. 32...Kh8 33. Bxg7#

b. 32...gxh6 33. Qxh6

b.1 33...Bf6 34. Bxf6 and mate is coming up

b.2 33...Bf8 34. Qg5+ Bg7 35. Qxg7#

Apr-20-12  geeker: Very nice combo, but I was familiar with the position from Larsen's games collection book (got a reprint edition a few years ago).
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