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Thomas Ernst vs Ferdinand Hellers
Lugano op (1986), Lugano SUI
Sicilian Defense: Dragon Variation. Yugoslav Attack (B77)  ·  1/2-1/2

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
Dec-07-14
Premium Chessgames Member
  sjunto: I got the first three moves - does that count?
Dec-07-14  M.Hassan: "Insane"
White to play 22.?
White is a Knight ahead and his Queen is under attack

22.Ne6+ Bxe6
23.Qd6+ Kg8
24.Qxc5 Bxc3
25.Bxe6 fxe6
26.Qc8+ Kh7
27.Qxe6 Qc7
28.Rh3
White is stronger
Also:
27..........Qa3
28.Qb3 Nd3++
29.Kb1 Qxb3
30.axb3 Nb4
31.Rd1
Again White is stronger

Dec-07-14  The17thPawn: 24. Bxe6 was my choice after the start of the sequence and given the game turned out drawn maybe its a better try?
Dec-07-14  diagonalley: <sjunto> me too!... and (as it's a sunday) i think we could reasonably award ourselves a quarter of a point!
Dec-07-14
Premium Chessgames Member
  patzer2: For today's Sunday puzzle solution, 22. Ne6+! (giving up the Knight for a discovered attack on the loose Rook/Bishop) is an obvious start.

Where the combination gets difficult is finding stronger winning follow ups missed by White.

Here's three missed opportunities:

(1) Instead of 25. Qc8+, 25. Ne6! Qxa2 26. Nf6+ Bxf6 27. Bxf6 Qa1+ 28. Kd2 Nc4+ 29. Qxc4 Qxf6 30. Qxb3 Qxf4+ 31. Qe3 Qg4 32. g3 gives White a clearly decisive result.

(2) Instead of 29. Qd7, 29. Rh3! wins immediately.

(3) Instead of 30. fxg7 , 30. Rh3! is clearly decisive.

Dec-07-14  bcokugras: 29. fxg7 ?
Dec-07-14
Premium Chessgames Member
  Chessdreamer: The site field [London] is incorrect. This game was played in Lugano Open (February/March 1986, 250 players & 9 rounds: Korchnoi, Gutman, Plaskett, Short 7½, Seirawan, Nunn, P.Nikolic, Tukmakov 7, Sax, Levitt, Hickl, Kir. Georgiev, Dolmatov, Adianto, Bellon Lopez, Dizdarevic, Van Mil, Gheoghiu, King, Hellers 6½, etc). Annotated by Hellers in Chess Informant 41, game 238.
Dec-07-14  morfishine: I got three things right: (1) I guessed it was a Sicilian (2) <22.Ne6+> & (3) 24.Qxc5

After that, forget about it

There are unumerable branches to ponder; for example should White try to undercut Black's counter with 24.Bxe6 or is it better for Black to trade down with 26...Qxc3+ (instead of 26...Bxc3) or even try to interplolate 26...Nd3+ ?

These stereotypical Sicilian complexities with their razor-sharp positions, are way too much for me this morning. With that said, I'll load it into a PGN viewer later and see if that simplifies anything

*****

Dec-07-14  Cheapo by the Dozen: White is up a piece at the moment. Black and White each have a knight hanging. Black also threatens to trap White's bishop. White's other (d4) knight is likely to hang in various lines too.

22 Kxb2 fails badly, to Qxc3+/Bxd4, with threats including the combination Bb4/Be3/Qxc2#.

22 Qd2 is harder to refute, but after ... Rxc3 material is even, the b2 knight is poisoned, ... f6 is threatened and so on. And Black can break the pin on his rook because of all the threats after ... Qa3.

Other passive moves for White look pointless.

So let's consider 22 Ne6+, in response to which Black can either capture the knight or move his king. After

22 Ne6+ Bxe6/gxf6
23 Qd6+ Kg8
24 Qxc5 Bxc3
25 Bd8

it looks like White can simplify, and be the exchange up. Similarly, after

22 Ne6+ Ke8
23 Nxg7+ Kf8
24 Kxb2 Qxc3+
25 Kb1 Kxg7

White is a piece up in a reasonably safe position. That leaves

22 Ne6+ Kg8
23 Qxd7

White is two pieces up and also threatens mate starting with Qxf7+, a forced queen exchange with Qd8+, and Nxc5. I don't see how Black can survive.

Dec-07-14  Cheapo by the Dozen: I'm a more lenient grader than some, so I think several of us solved this puzzle.
Dec-07-14  gofer: Well, with black threatening Nxd1 and Qxc3, whatever white does it needs to be quick. So I would guess that Ne6+ is about as forthright as move can be...

<22 Ne6+ ...>

22 ... Kg8
23 Qxd7

22 ... fxe6
23 Qxd7 Qxc3 (Rc7 Qxe6 )
24 Qd8+ Kf7
25 Qe7+ Kg8
26 Qxe6+ Kh7
27 Qg8#

<22 ... Bxe6>
<23 Qd6+ Kg8>
<24 Qxc5 ...>

So we have won an exchange and extracated our queen, but are we out of the woods yet???

<24 ... Bxb3!>

At this point, taking back the bishop looks like a mistake!

25 axb3 Bxc3

25 cxb3 Nd3+

<25 Ne4! ...>


click for larger view

25 ... Nc4
26 Nf6+

<25 ... Qxa2>
<26 Nf6+ Bxf6>
<27 Bxf6 Qa1+>
<28 Kd2 Nc4+>
<29 Qxc4! >


click for larger view

~~~

Hmmm, well I got the first few moves, but now I am intrigued...

Is <25 Ne4> any good? Does it deserve my impudent "!" or is it garbage???

Okay all those with silicon buddies what do they say is the best option after the cunning <24 ... Bxb3>...

Dec-07-14  GrandMaesterPycelle: I found the first few moves, though I did imagine white would win eventually
Dec-07-14
Premium Chessgames Member
  Penguincw: My neat jerk reaction was to play 22.Kxb2, but after 22...Qxc3+ 23.Kc1 Bxd4, all of a sudden, white went from being up a full piece to even material.
Dec-07-14
Premium Chessgames Member
  skeptic50: Ummm -- nice 34-move combo to force the draw??
Dec-07-14
Premium Chessgames Member
  patzer2: Correction to my previous post:

Instead of 25. Qc8+, White should try 25. Ne4! (diagram below)


click for larger view

Now, after 25. Ne4! (instead of 25. Qc8+), Black has nothing better than 25...Qxa2 when White gains a decisive advantage after 26.Nf6+! Bxf6 27.Bxf6 Qa1+ 28.Kd2 Nc4+ 29.Qxc4 Qxf6 30.Qxb3 Qxf4+ 31.Qe3 Qc4 (+3.92 @ 21 depth, Fritz 12 -- diagram below)


click for larger view

Here, at the end of this 25. Ne4! line (diagram above), White wins easily.

Dec-07-14
Premium Chessgames Member
  patzer2: <skeptic50: Ummm -- nice 34-move combo to force the draw??> Maybe so, but it's only a draw because White missed several winning shots, such as 25. Ne4!, 29. Rh3! and 30. Rh3!, in the follow up to 22. Ne6+!!
Dec-07-14
Premium Chessgames Member
  Jimfromprovidence: <patzer2> <gofer> and others...

25 Ne4 threatens Nf6+ but 25...Qa6 stops that threat.


click for larger view

White has 26 axb3, which leads to 26...Qa1+ 27 Kd2 Qxh1.


click for larger view

Material is even. Black threatens 28...Qxg2+.

White to play and win.

Dec-07-14
Premium Chessgames Member
  patzer2: <Jimfromprovidence> After 25. Ne4! Qa6 Qa1+ 27 Kd2 Qxh1 (last diagram in your post), White wins with 28. Qc8+! (28...Bf8 29. Be7! ) 28...Kh7 29. Nf6+ Bxf6 30. Bxf6 Qd1+ 31. Ke3! .
Dec-07-14
Premium Chessgames Member
  agb2002: White is one knight ahead.

Black threatens 22... Qxc3.

The black rook is defenseless. This invites to play 22.Ne6+, allowing Qd6+ with tempo:

A) 22... Bxe6 23.Qd6+ Kg8 (23... Ke8 24.Qe7#) 24.Qxc5

A.1) 24... Bxc3 25.Bxe6 fxe6 26.Qc8+ Kh7 27.Qd7+ Kh8 (27... Bg7 28.Bf6 and mate soon) 28.Qd8+ Qxd8 29.Bxd8 + - [R vs N].

A.2) 24... Bxb3 25.Qc8+ (25.Kxb2 Qxa2+ 26.Kc1 Qxc2#; 25.cxb3 Nd3+ and 26... Nxc5; 25.Qxb5 Qxc3 26.axb3 (26.Qxb3 Nd3+ 27.Kd1 Nf2+) 26... Nd3+ 27.Qxd3 Qa1+ 28.Kd2 Qxh1) 25... Kh7 26.cxb3 Bxc3 27.Kb1 and White has the exchange but the king is not completely safe.

B) 22... fxe6 23.Qxd7

B.1) 23... B(Q,R)xc3 24.Qe7+ Kg8 25.Qxe6+ and mate next.

B.2) 23... Nc4 24.Qe7+ Kg8 25.Qxc5 Qxc3 (25... Bxc3 26.Bxc4 bxc4 27.Qxa5 + - [R]) 26.Bxc4 Qa1+ (26... bxc4 27.Rd1 + - [R]) 27.Kd2 Qxh1 28.Bxe6+ + - [B+P].

C) 22... Kg8 23.Nxc5

C.1) 23... Qxc3 24.Qxd7 Nd3+ (24... Qxc5 25.Qxf7+ Kh7(8) 26.Qg8#) 25.Qxd3 Qa1+ 26.Kd2 Qxh1 27.Qd5 wins.

C.2) 23... Bxc3 24.Qxd7 looks similar to C.1.

C.3) 23... Bf5 24.Qd5 looks winning.

Dec-07-14
Premium Chessgames Member
  chrisowen: Eg head either bind a5 have queen rook c5 eedjut land a blow c5 elegy rates at ooh orchestrate a bind queen and knight a blew in emory board it ardent in aim epi centre effigy rates equate d7 errand boy e4 a d2 easier catch eunich queens d7 ever at length climb f6 everest mountain extras need at slug h7 as hidden majesty eyeball across d7 i net bet bishop set debt determine extract in b3 and reticence ogle worth a swap a5 circles around for the bit kill ok ive ogle a b2 swallowed up on time get rook het up h3 band jet set would in b3 let chin up d7 bad pet hate why not knight in e4 quest a d2 i um bless light in front tete a tete vet e4 wet team tether d7 tear jerker a b2 knight tease at he gaffer i change huff ever estimate a long course d7 a lunge flinch give flash in the pan e4 river of if ever effect d7 sift face off lift feel dominate the pack f8 fiedom in a tours h7 a mixing around by number am a2 seek h1 out ive a notion let in rich to go 22...Bxe6 23.Qd6+ i be proof d6 good a double blow in difficult to tell how much again dipoff at chin c5 lare crest in c8 an e4 preferred to keep the piece at slide away in log 23...Kg8 24.Qxc5 Bxb3 25.Qc8+ a oomph have job search in as why time for knight accomodate a pluck up free courage in cascadence fly e4 off the handle on gun back a d2 christen an extra piece in tempt black to prove what he has in lines 23.Ne4 (3.29) piece ahead takes at b3 and queen check at a3 highness scuttles away and c4 regain two pieces up clear back rank piece ahead two point ahead 25...Kh7 26.cxb3 Bxc3 or a crown a boon to better glide up ride a lion to bio growth in pick free case cove came at creeps 26...Nc4 equal game pieces fly around takes aim e4 in queen grabs i a2 method free combine catch a knight ash e4 roughly level in queens saunter did e4 and chances about the same piece ahead although a lane g5 blocked game g5 a nut bishop back equality to believe 27.f5 Bg7 or anglers 27...Qa3 at won g6 and trades e7 ment quarter back in exchange up rook at the focal zone knight flare in dig as d3 check escpae white in effect clearly a moot win most likely am push on evermost 28.f6 Qxa2 or staminas 28...Nd3 trade bishop g7 for c1 and or chest er trade queens a c2 and a b2 light has.
Dec-07-14  CHESSTTCAMPS: In this dynamic 2-way attacking position, white is a minor piece up, but has the less active rook. Apparently black has just snatched a pawn on b2, poking a hole in the white castled position with tempo. White acceptance of the pseudo-sacrifice gives back the material with dismal prospects: 22.Kxb2?? Qxc3+ 23.Kc1 (Ka3?? g4#) Qa1+ 24.Kd2 Qxd4+ 25.Kc1 (25.Ke2?? Bg4+ wins OR 25.Ke1? Qxd1+ 26.Kxd1 c6 traps white's dark squared bishop) 25... Qa1+ with at least a perpetual check and probably more.

Attacking counterplay looks like the only option for white. At first I liked the idea of 22.Qe1(??) with the idea of 22.. Qxc3(??) 23.Qe7+ Kg8 24.Qxf7+ Kh7|h8 25.Qg8#. Then I noticed that 22...Nd3+ 23.cxd3 Qxc3+ 24.Qxc3 Rxc3+ followed by 25... Bxd4 appears to favor black.

Interesting is the confusing 22.Qe2? Nd3+, but I much prefer a forcing simplification that activates the WQ.

22.Ne6+! sacs a knight for a tempo:

A. 22... Kg8? (Ke8?? 23.Nxg7+) 23.Qxd7 Qxc3 24.Nxc5 and black's attack is spent.

B. 22... Bxe6 23.Qd6+ Kg8 (Ke8?? 24.Qe7#) 24.Qxc5 Qxc3 25.Qxc3 Bxc3 26.Bd8 and white's exchange should hold up easily with the Nb2 trapped.

B.1 24... Bxc3 25.Bd8! Qxd8 26.Qxc3 Na4 27.Qh8+! and swaps queens into a won ending.

Time to check....

Dec-07-14  CHESSTTCAMPS: Not good - I missed the threats associated with 24... Bxb3 and failed to analyze it.
Dec-08-14  beonlychampion: I got QE2 and I think it wins too .throw some light

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