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Viktor Kupreichik vs Klaus Gschwendtner
Berliner Sommer 14th (1996), Berlin GER, rd 7, Aug-16
Spanish Game: Morphy Defense. Modern Steinitz Defense (C71)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-09-12  vinidivici: probably the puzzle should begin with 19? not 18.
Nov-09-12  LoveThatJoker: GM Kupreichik: Rock on!

<18. Qh5+ Ke7>

(18...Ke6 19. Qxg4+ ; 18...Kg8?? 19. Rh8#)

<19. Rh8!>

For example,

A) 19...Qxh8 20. Nd5+ Ke6 (20...else 21. Qxh8+ ) 21. Nxc7+ Ke7 22. Nd5+ Ke6 23. Qxg4+ Kf7 24. Qxd7+ Kf8 [24...Kg6 25. Qf5+ Kf7 (25...else?? 26. Rh1#) 26. Qxf6+ ] 25. Qxd6+ as White is up too much material.

B) 19...Rg8 20. Qh7+ Ke6 [20...Qf7 21. Nd5+ Kf8 (best) 22. Rxg8+ Qxg8 23. Qxd7 ; 20...Rg7 21. Rxf8 (21. Nd5+ Kf7 which, for the price of the c7 pawn, allows Black to coordinate his Rooks quicker) 21...Kxf8 (21...Rxh7 22. Rxa8 ) 22. Qh5 ; 20...Ke8 21. Rxg8 ] 21. Nd5!! Rc8 (21...f5 22. Rxg8 ; 21...Qf7 22. Qf5#) 22. Rxg8 Qxg8 23. Nxc7+! Rxc7 24. Qxg8+

LTJ

Nov-09-12
Premium Chessgames Member
  rodchuck: I would have thought that after 18. Ke7,Qh5+ 19 Qg6 Rf7 (to avoid loss of rook)20 Nd5+ wins (Ke6 Qf4#, Ke8+ forks Ra8, Kd8 loses Rf7), white also wins easily. Or have I missed something obvious?
Nov-09-12
Premium Chessgames Member
  agb2002: White has the bishop pair for a bishop and a knight.

Black is about to eliminate one of White's best pieces with 18... Nxe3.

The rook on g7 is pinned. These details suggest 18.Qh5+ Ke7 (18... Kg8 19.Rh8#; 18... Ke6 19.Rxg7 Qxg7 20.Qxg4+) 19.Bxg5:

A) 19... fxg5 20.Nd5+ Kd8 (20... Ke6 21.Qxg4+ Kf7 22.Qxd7+) 21.Rh8 Rg8 22.Qxg5+

A.1) 22... Rxg5 23.Rxf8+ Be8 24.Rxe8+ Kxe8 25.Nxc7+ Ke7 26.Nxa8 Nxf2 27.Ke2 Ng4 (27... Rxg2 28.Kf3 Rh2 29.Kg3) 28.Rh1 + - [B+2P vs N].

A.2) 22... Nf6 23.Qxf6+ Qxf6 24.Rxg8+ Be8 25.Nxf6 Ke7 26.Rxe8+ Rxe8 27.Nxe8 Kxe8 28.Bxc6+ bxc6 29.Ke3 + - [2P].

B) 19... Rxh7+ 20.Qxh7+ followed by Bh3 and White has won a pawn.

Nov-09-12
Premium Chessgames Member
  whiteshark: Like a surgical operation, carried out by the always tactical attentive Kupreichik.
Nov-09-12  nnnnnnnn: 19...Rg8 is the most difficult line to see! I wonder if any of you out there saw this! 21.Nd5 with the Rook hanging is not easy to either see or calculate! B) 19...Rg8 20. Qh7+ Ke6 [20...Qf7 21. Nd5+ Kf8 (best) 22. Rxg8+ Qxg8 23. Qxd7 ; 20...Rg7 21. Rxf8 (21. Nd5+ Kf7 which, for the price of the c7 pawn, allows Black to coordinate his Rooks quicker) 21...Kxf8 (21...Rxh7 22. Rxa8 ) 22. Qh5 ; 20...Ke8 21. Rxg8 ] 21. Nd5!! Rc8 (21...f5 22. Rxg8 ; 21...Qf7 22. Qf5#) 22. Rxg8 Qxg8 23. Nxc7+! Rxc7 24. Qxg8+
Nov-09-12
Premium Chessgames Member
  agb2002: After some minutes Stockfish evaluates 19.Bxg5 Re8 (presumably best for Black) at 2.7, while the capture of the bishop drops to 5.1, a decisive advantage for White in both cases but not so clear as Kupreichik's 19.Rh8.
Nov-09-12  Bengambit: Nice. Seen Qh5 and Nd5+ but didn't finish the contiuation of the Knight dance on d5 and c7 squares ( an novelty there) and the Rook sac and deflection of the Queen to keep her on the h8 square and from blocking and protecting the 7th rank ,plus the free piece of the unguarded Knight on g4. I am working on looking at the guess the move part without seeing the results of all of your lines that everybody went over. I am training my "Tactical" sight and sense to the point so it comes natural like a "Check List" during a chess match.
Nov-09-12  Bengambit: Oh,i forgot Black's weak c6 pawn. Now I really see why the forced move and the deflection of the Queen to h8,plus the removing of the guard ( which was the Queen) to add to it,because Black's Queen would have had plenty of work to do on the 7th and 8th ranks in stopping White's attack. Now that was some slick playing by White!!!
Nov-09-12  Bengambit: Wow,the Knight at g4 was not unguarded,but an block created by white allowed that knight to become a free piece with an skewer toward blacks bishop on d7. Whiteshark your correct,a surgical masterpiece.
Nov-09-12  Bengambit: Gentlemen,in the heat of any battle on the chess board,it will be a "Tactic" that will decide the game!!!
Nov-09-12  David2009: Kupreichik vs K Gschwendtner, 1996 White 18? 18.Qh5+ seems strong: check:
====
Missed it by a mile. I had intended to continue with 19.Nd5+ "and break through", but a check with Crafty End Game Trainer shows that this doesn't work. Hre's the puzzle position:


click for larger view

linked to Crafty End Game Trainer: http://www.chessvideos.tv/endgame-t.... The game continuation 19.Rh8!! is a beautiful intermediary move: if instead 19.Nd5+ Kd8 20.Rh8 Rg8 defends, but 19.Rh8 Rg8 is refuted by 20.Qh7+ etc.

Against Crafty EGT, the resilient robot defends with 19...Nxe3 20.Rxf8 Nxc4+ 21.dxc4 Rxf8 22.Nd5+ Kd8 emerging with R+P for Q. Enjoy finishing off the robot - I made heavy weather of it first time round mating in 72 moves, subsequent efforts went better.

Nov-09-12  QueenMe: Wow - I was totally boggled by Mr. Kupreichik. I saw the 18. ♕h5+, and the follow-up ♘d5+, but tried to follow with it immediately, instead of the ingenious rook sacrifice White used to put Black's queen en-prize so Black would forever avoid returning his King to the back rank (blocking the rook at a8, which was protecting the Black queen). And Black always trying to avoid returning to the back rank was exactly what White exploited to eventually win. I'll have to study this some more - - this was *very* sharp play.
Nov-09-12  Abdel Irada: <<>Nothing to sneeze at<>

(Part 1 of 2)>

Examining this position, one is struck by the sense that Black must be lost thanks to the vulnerability of his king. But how to exploit it before the king runs off to safety on d8?

The first move is obvious:

<<>18. Qh5, Ke7>

Black's choices are limited: (a) 18. ...Ke6?; 19. Qxg4 loses a piece, while (b) 18. ...Kg8??; 19. Rh8# loses the king.

<<>19. Rh8!...>

Here would have been the logical place to start the puzzle, for this move is not so obvious. At first glance, I thought White had to continue with 19. Bxg5, until calculations showed that this won only a pawn after the retreat 19. ...Kd8.

This move is counterintuitive because h8 is defended twice. This apparent strength, however, proves illusory. Black has two options:

<(1) 19. ...Qxh8?
20. Nd5, Ke6>

Not 20. ...Kd8/Kf8; 21. Qxh8 .

<21. Nxc7, Ke7
22. Nd5, Ke6>

As before, 22. ...Kd8/Kf8 loses a queen. Meanwhile, White has won an important pawn, for reasons that will soon appear.

<23. Qxg4, Kf7>

Fatal is 23. ...f5??; 22. Qxf5#.

<24. Qxd7, Kf8>

Worse for Black is 24. ...Kg8; 25. Nxf6, Kf8; 26. Qxd6, Kf7; 27. Bxc6, bxc6; 28. Ng4, when White's material advantage and continuing attack are too much.

Still worse is 24. ...Kg6; 25. Qf5, Kf7 (25. ...Kh5/Kh6?; 27. Rh1 ); 26. Qxf6, Kg8 (26. ...Ke8; 27. Nc7 ); 27. Bxc6, bxc6 (relatively best); 28. Ne7, Rxe7 (28. ...Kh7??; 29. Rh1#); 29. Qxe7, and White is a piece two pawns ahead with the attack.

<25. Qxd6 >

Even here, however, White's advantages are overwhelming, with this final time-gaining pawn capture made possible by the finesse on moves 21 and 22.

But what if Black prudently refuses the rook?

<<> (2) 19. ...Rg8 20. Qh7...>

With this move, White threatens to win a rook should the king retreat to the eighth rank. This leaves three alternatives:

<(2.1) 20. ...Rg7
21. Nd5, Ke6>

Not 21. ...Kf7/Ke8/Kd8?; 22. Rxf8, when White picks up the queen with check before retreating his own.

<22. Qf5, Kf7
23. Qxd7...>

This is stronger than 24. Rxf8, Kxf8, when White will have to retreat his queen to f3.

<24. ...Kg6>

Other moves lose the queen immediately.

<25. Qf5, Kf7
26. Rxf8, Rxf8
27. Qxg4 >

With queen, two bishops and a continuing attack for a rook, White has a forthright win in prospect.

(Continued in next post.)

Nov-09-12  Abdel Irada: <<>Nothing to sneeze at<>

(Part 2 of 2)>

<(2.2) 20. ...Qf7
21. Nd5, Kf8>

Worse are (a) 21. ...Ke6??; 22. Qf5# and (b) 21. ...Ke8/Kd8?; 22. Rxg8 .

<22. Rxg8, Qxg8
23. Qxd7, Nxe3>

To save the knight.

<24. Bxc6!...>

This threatens 25. Qe7#, forcing Black's reply.

<24. ...Nxd5
25. Bxd5 >

Black will have to play 25. ...Qg7, simplifying into a lost ending, to avoid a mating attack beginning with 26. Rh1.

<<>(2.3) 20. ...Ke6 21. Nd5!...>

White threatens 22. Nc7#, leaving Black seven ways to try to defend, although most collapse quickly.

<(2.3.1) 21. ...f5
22. Rxg8 >

Black can't recapture without allowing 23. Qxf5#.

<(2.3.2) 21. ...Qf7??
22. Qf5#>

<(2.3.3) 21. ...Rg7
22. Qf5, Kf7
23. Qxd7, Kg6
24. Qf5, Kf7
25. Rxf8, Rxf8
26. Qxg4 >

<(2.3.4) 21. ...Qd8
22. Rxg8 >

<(2.3.5) 21. ...Qc8
22. Rxg8 >

<(2.3.6) 21. ...Qb8
22. Rxg8 >

In none of the preceding three lines can the queen abandon the defense of c7 to recapture the rook.

Finally:

<<> (2.3.7) 21. ...Rc8 22. Rxg8 >

If 22. ...Qxg8?; 23. Nxc7, Rxc7; 24. Qxg8. The only other choice is 22. ...Qh6; 23. Qf5, Kf7; 24. Qxd7, Kxg8; 25. Qxc8, K any; 26. Qxg4, with an advantage of a rook and two bishops.

Nov-09-12  Abdel Irada: I see Black "gschwendted" his game away with 19. ...Qxh8? But the difference is ultimately immaterial.
Nov-09-12
Premium Chessgames Member
  kevin86: I started fine...but couldn't close the deal.
Nov-09-12
Premium Chessgames Member
  doubledrooks: I found 18. Qh5+ Ke7 19. Rh8 and now:

a. 19...Qxh8 20. Nd5+ Ke6 21. Nxc7+ Ke7 22. Nd5+ Ke6 23. Qxg4+ Kf7 24. Qxd7+

b. 19...Rg8 20. Qh7+ Ke6 21. Nd5 (threatening Nxc7#) Rc8 23. Qf5+ Kf7 24. Qxd7+

c. 19...Qf7 20. Qxf7+ Kxf7 21. Rxa8

Nov-09-12
Premium Chessgames Member
  chrisowen: Ding dong good game battle i had a winkling for knight having a part to play queenside first it now hone in he queen+ at h5 a sidestep 18...Ke7 white is barrelling along in brewing it up a strong attack for double in dig rookh8 this effectively seal black king fate queen must be abandoned in other words 19...Qxh8 20.nd5+ cavalcade ! chide oh seek in doors a spanish jasmine ogled d5+s king right up e6 whirlwind duty i train sight in c7 too rites of passage in (siphon) pawn dressage hit ye ke7 ke6 epi centre king dip in and out heat her bind it is 23.Qxg4+ all i bar on queen loot advantage off a g4 d7 round in knight and bisop fort wo queen tangle it her in penetration go fog gifted in king lifted elevate rh8 as key in f8 stuck!
Nov-09-12  tarikhk: why not 19 Qg6?
Nov-09-12  morfishine: No luck for me today. I spent way too much time on 18.Qh5+ Ke7 <19.Bxg5>

I looked at playing the rook to <h8> as part of the sequence involving <Qh5> & <Nd5> but just didn't see the right move order...discouraging

Nov-09-12  Patriot: 18.Qh5+ Ke7 19.Rh8 looks interesting. 19...Qxh8 20.Nd5+ Ke6 21.Qxg4+ Kf7 22.Qxd7+ looks winning. I'm out of time on this.
Nov-09-12  Patriot: I figured 19.Rh8 was key since I didn't see the point behind 19.Nd5+ Kd8 20.Rh8 Rg8. I was also thinking after 19.Rh8 Rg8 20.Qh7+ is the key.
Nov-09-12  bischopper: before of exchange pieces one must to see how get more and more like a hurricane...
Nov-09-12  M.Hassan: "D ifficult"
White to play 18.?
Equal

I thought of 2 lines both starting with a check:
A)

18.Qh5+ Ke7
19.Nd5+ Kd8
20.f3 Nxe3
21.Kxe3 Be8
22.Qh6 threatening to capture the Rook
22........Rg8
23.Qxf8 Rxf8
24.Nxc8 Rb8
<if....Rc8 25.Ne6#>
25.Ne6+ Kc8
26.Nxf8
White surely has advantage in materials

B) 18.Qh5+ Ke7
19.Rh8 Qxh8
I thought if there is possibility to pudh the King to the 8th rank, Queen can be caltured

20.Nd5+ Ke6 would not go to 8th rank
21.Nxc7+ Ke7
22.Nd5+ Ke6 better than 8th rank!
23.Qxg4+ Kf7
24.Qxd7+ Kf8 (I doubt if ...Kg6 was a good move)
25.Qxd6+ Ne7
26.Qxf6+ Kg8
27.Nxe7+ Rxe7
28.Qxe7
The diagram shows the position after 28.Qxe7


click for larger view

White could not capture the Queen on the 8th rank but he "shattered" Black and I think it is the time for him to resign and time for me to check.

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