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Joachim Sieglen vs Kai Wesseln
Bundesliga (1988/89), Germany
Dutch Defense: Leningrad. Matulovic Variation (A89)  ·  0-1



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Kibitzer's Corner
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Apr-18-14  cyclon: Almost, but not quite. I missed this peculiar game-line consisting about the defence 34. Rf3 and now White threatens 35. Qxg5+ ( this move is what I missed at first). Interesting is that Black still wins. As a consequence, naturally I missed 35. -Nxf3!! too. Cufflinks for Black!
Premium Chessgames Member
  patzer2: Black has two ways to solve today's Friday (31...?) puzzle.

Either 31...Bxf5 32. exf5 Nf3 33. Rxf3 gxf3 or the game continuation 31...Rxf5!! 32. exf5 Bd5+ 33. Bg2 Qh3! work.

In the game continuation, an amusing defensive possibilty is 34. Re4!? (diagram below)

click for larger view

Here 34...Bxe4? blunders and gives White a draw by perpetual after 35. Qxg5+ =. Instead 34...Nxe4! wins due to the mate-in-two threat 34...Nxe4! 35. Bxh3? Nxg3#.

Apr-18-14  Nick46: A classic case of the <Dutch Defense: Leningrad. Matulovic Variation> Who thinks up these names fer gaaawds sake, and who learns them off by heart?
Apr-18-14  morfishine: <31...Rxf5> 32.exf5 Bd5+ looked very strong, but after 33.Bg2 I had trouble visualizing 33...Qh3

<patzer2> Your second variation ending in 35...Nxg3# is more than "amusing"; Its important as it demonstrates an additional line on this B+N theme. Very nice!


Apr-18-14  gofer: This all looks pretty forced...

<31 ... Rxf5>

Black cannot afford to refuse the sacrifice as losing Nf5 for nothing is as good as losing anyway...

<32 exf5 Bd4+>
<33 Bg2 Qh3!>

At this point black can give up trying to defend as all responses seem to lose...

34 Bxd5 f1=Q+
35 Qxf1 Qxf1#

34 Qf1 Bxg2+
35 Qxg2 f1=Q+
36 Qxf1 Qxf1#

34 Re4 Nxe4!
35 Bxh3/Qf1 Nxg3#

34 Rf3+ Nxf3!
35 Bxh3 Bxh3
36 Ne1+ Bg2
37 f1=R#/Bxg2#

34 f6+ Kxf6!
35 Re4 Nxe4!
36 Bxh3/Qf1 Nxg3#

34 f6+ Kxf6!
35 Rf3+ Nxf3!
36 Bxh3 Ne1+
37 Bg2 f1=R#/Bxg2#

<34 Rf3 Nxf3!>
<35 f6? Kxf6>
<36 Bxh3 Ne1+>
<37 Bg2 f1=R#/Bxg2#>



Apr-18-14  parmandil: After white interpolates the rook, either on e4 or f3, there is also the more prosaic 34... f1Q+ followed by 35... BxR.
Apr-18-14  diagonalley: neat... very neat!... managed to visualise most (though not all) the sequence)... worthy of a perfectly bog-standard friday
Apr-18-14  kurodo77: 31...Bxf5
32 exf5 Rh8
33 f6+ Kxf6

and now? Checkmate in h2.

Apr-18-14  Ratt Boy: Me likey the Leningrad Dutch. Been playing it for 40 years.

(I almost got the puzzle. I had 31…♖xf5 32.exf5, ♗d5 33.♗g2, ♕xh2+ 34.♔xh2, ♖h8+ and mate to follow. Bummer that I didn't have a Rook to play to h8.)

Premium Chessgames Member
  Penguincw: 31...Rxf5 32.exf5 was pretty easy to spot , but I didn't catch 32...Bd5+.
Apr-18-14  PJs Studio: I calculated all of it but chose 35...Nh4+
Does that mean I got it wrong?
Apr-18-14  JohnBoy: I saw <cyclon>'s line but finished with 35.Qf1 Bxg2 36.Qxf2 f1Q+ - one move longer to mate.
Premium Chessgames Member
  kevin86: Black is in check. So save the bishop, open lines for him ,and force checkmate!
Apr-18-14  Patriot: 31...Rxf5 32.exf5 Bd5+ 33.Bg2 Qh3

34.Bxd5 f1=Q+

34.Qf1 Qxg2+ 35.Qxg2 f1=Q#

Premium Chessgames Member
  Jimfromprovidence: A cool variation is after 32 Qc5. Black wins beginning with 32...Qh3!

click for larger view

Apr-18-14 Dynamite final position.
Apr-18-14  Patriot: <Jimfromprovidence> That is a neat line if I'm thinking correctly.

33.Bxh3 Nxh3 34.Qe7+ Bf7 and white looks busted.

Apr-18-14  morfishine: FWIW: White looked busted by move 11
Premium Chessgames Member
  Jimfromprovidence: <Patriot> <That is a neat line if I'm thinking correctly.

33.Bxh3 Nxh3 34.Qe7+ Bf7 and white looks busted.?>

Yes after 32 Qc5 the queen sacrifice 32...Qh3 forces mate for black.

Another alternative to review is after 32 Qc5 Qh3 33 Qb5.

click for larger view

Apr-18-14  stingray0104: 34. Rf3 was a tricky defense!
Premium Chessgames Member
  patzer2: <Jimfromprovidence> <...after 32. Qc5 Qh3! 33. Qb5> (diagram above), I correctly guessed 33...Nxe4! when 34. Bxh3 (34. Rxe4 Bd5! ) 34... gxh3! 35. Qf1 Nd2 leads to a quick mate.
Apr-19-14  Patriot: <Jimfromprovidence> Wow--I'm thinking 33...Qxh2+ 34.Kxh2 Nf3+:

35.Kg2 Ne1+ 36.Kh2 Rh5+ and mate next.

35.Kg2 Ne1+ 36.Rxe1 fxe1=Q 37.exf5 Bxf5 looks winning.

35.Rxf3 Rh5+ 36.Kg2 - That's a problem in this line.

Here I considered 33...Nxe4 34.Bxh3 but didn't consider 34...gxh3.

It's a very tough line. I probably would have played 32...Rf7 which should be a simple win. Your 33.Qb5 is a tough move to face.

Premium Chessgames Member
  patzer2: <Patriot> <I probably would have played 32...Rf7> I assume you mean 33...Rf7 from Jim's diagram, though 32. Qc5 that led to it can be met with 32...Rf7 .

From <Jimfromprovidence>'s diagram, I considered 33...Rf7! , when after 33...Rf7! 34. Qxe5+ Kg6 35. Qb5 (diagram below)

click for larger view

Black wins with either the flashy 35...Nxe4! or the more mundane 35...Qh8 .

Apr-19-14  Patriot: <patzer2> I was referring to 32.Qc5 Rf7, instead of 32...Qh3 which is really tricky. It's a great move, but OTB I may have gone with 32...Rf7 especially if I noticed 33.Qb5!.
Apr-20-14  SuperPatzer77: < Patriot: <patzer2> I was referring to 32.Qc5 Rf7, instead of 32...Qh3 which is really tricky. It's a great move, but OTB I may have gone with 32...Rf7 especially if I noticed 33.Qb5!. >

<Patriot> Instead of 32. exf5, 32. Qc5 Qh3!!, 33. Qe7+ Nf7! (Better than 33... Rf7 and the White Queen cannot get to g5 because the Black Knight covers g5.)

See Patzer2's commentary responding to JimfromProvidence's --- 32. Qc5 Qh3!!, 33. Qb5 Nxe4!


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