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Viktor Kupreichik vs Georg Danner
"Danner is Served" (game of the day May-09-2013)
EU-ch U20 Niemeyer 4th (1966), Groningen NED, rd 10, Jan-06
Sicilian Defense: Najdorf Variation (B94)  ·  1-0

ANALYSIS [x]

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Given 34 times; par: 22 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Aug-19-12  LoveThatJoker: 20. Qh8!

I considered it, but didn't see the proper follow-up, so this is where my streak ends.

I can take some consolation in that Stockfish confirms that 20. Re3 is a decent move. At a depth of 21, as I write this, it is saying that White gets a < > advantage.

This said, 20. Re3 is still inferior to the one and only outright winning move - GM Kupreichik's 20th.

So, my streak ends at 27 straight-correct solves.

LTJ

Aug-19-12
Premium Chessgames Member
  chrisowen: I dont see the point of 17.bh4 hirsute a mammoth hairball qb6 in a

pickle does it allow in knightf5 at iron in e1 castle exploit ok in

be7 then o i reckon it erstwhile in qh8 victory in lights out black

again method too stodgy this Kupreichik gob engage ala all his

pieces to flush in effect it he in just again high-hope what a joke in c5.

Aug-19-12
Premium Chessgames Member
  chrisowen: A body to rights everything focused on key e7 safe e6 dominate hinder it d7 i think rookg6 in either it escry arrow rookd7 in escapes tell a full bishop thrust e7 pump in blocking I see 20.Qh8 as brother it Nxb3 in 21.be7 the woods clearing Rxe7 I Nxd6+ in wall it recapture bobbing for apple sam see qxd7 rxd6 and i lions-share in bid for qh8 it hoof in b3 ar be7 tie him up in knots again.
Aug-19-12
Premium Chessgames Member
  Jimfromprovidence: I’ve reviwed the puzzle a second time and all I can say is “it’s complicated”.

Beside the text 20 Qh8 Nxb3 21 Be7!, one must analyze the responses 20…d5 and 20…e5. These two moves do not make 21 Be7 feasible because black now protects the key d6 square from 22 Nxd6+.

Nevertheless, white is still winning. To answer 20…e5, white has 21 Bg6!, threatening 21 Ng7+. Black has to concede the exchange to avoid that possibility.


click for larger view

After 20…d5, 21 Bxd5 looks the most straightforward. I’m not sure what black should play here but I believe white can retreat the bishop and reinstitute the Be7 threat since the d pawn is now out of the way.

For example if 21…Na4, then 22 Bb3 and the original threat reappears.


click for larger view

Aug-19-12
Premium Chessgames Member
  whiteshark: <lost in space: Too high for my small brain. Be7 never came to my mind.> And thus we come back down to earth with a bang. :D
Aug-19-12
Premium Chessgames Member
  Pedro Fernandez: <lost in space: Too high for my small brain. Be7 never came to my mind.>You haven't a little brain at all my friend, it's happens Kupreichik saw to Anderssen in this game.
Aug-19-12
Premium Chessgames Member
  agb2002: White is a pawn down.

The black knight is pinned which makes the e6 square weaker. However, any sacrifice on e6 seems to go nowhere.

Another weak spot is d6, which suggests 20.Bg3, but after 20... e5 21.Bxe5 dxe5 22.Qxe5+ Re6 (22... Ne6 23.Ba4) 23.Bxe6 fxe6 White doesn't seem to have made much progress.

A better option appears to be 20.Qh8 with a number of threats (Be7, Bf6-Bg7, Qxh7-Bxe6, etc.). For example, 20... a5 21.Be7 Rxe7 22.Nxd6+ winning the queen (after capturing the white knight or after a discovered check).

I'm afraid is a bit late and my head refuses to work.

Aug-19-12
Premium Chessgames Member
  LucB: <LTJ>

<So, my streak ends at 27 straight-correct solves.>

Wow, that's a heck of a lot more than my record!

:oD

Aug-19-12  LoveThatJoker: <LucB> This is my personal best, man!

I have a magic number. I hope to make that one someday. :)

LTJ

Aug-19-12  erniecohen: <sevenseaman:Please write your winning combination after this;

<20. Qh8 d5 21. Rxd5 Rxd5 22. Bxd5 Qb4> Or try this Crafty link for clarity.>

Against Crafty, I continued 23. ♗c6+ ♘d7 24. ♗e7 ♕xe7 25. ♘xe7 ♔xe7 26. ♕c3 ♖g5 27. ♖d1 a5 28. f4 ♖f5 29. g4 ♖xf4 30. ♗xd7 ♗xd7 31. ♕c7 ♗h6 32. g5 ♗xg5 33. ♖xd7+ ♔f6 34. ♖xf7+ ♔g6 35. ♖xf4 ♗xf4 36. ♕xf4 and white is up a ♕.

Aug-19-12  nariga: How does this look? I cannot see any clear overwhelming moves for white.

20. Qh8 f6?

Aug-19-12  sevenseaman: Thanks Ernie. That's quite promising now.

I hope you do not mind the hard work I put on your plate. Its much better than glossing over a hollow Kupreichik win.

Aug-19-12  erniecohen: <nariga: How does this look? I cannot see any clear overwhelming moves for white. 20. Qh8 f6?>

21. ♗xe6 is pretty overwhelming, e.g. 21...♘xe6 22. ♖xe6+ ♔d8 23. ♕xf8+ ♔c7 24. ♘xd6 and slaughter ensues.

Aug-19-12  erniecohen: <sevenseaman: Thanks Ernie. That's quite promising now.

I hope you do not mind the hard work I put on your plate. Its much better than glossing over a hollow Kupreichik win.>

No problem, that's why we're here.

Aug-19-12  nariga: <erniecoehn: 21. Bxe6 is pretty overwhelming, e.g. 21...Nxe6 22. Rxe6+ Kd8 23. Qxf8+ Kc7 24. Nxd6 and slaughter ensues.>

22. Rxe6+ Kf7 seems ok. Yeah, it looks intimidating for black, but I dont see any major threats.

23. Qxh7+ Bg7 etc. Looks complicated but not overwhelming??

Aug-20-12
Premium Chessgames Member
  Richard Taylor: I solved this one I could see that I needed in some variations to get my knight to mate on c7. 1. Qh8 seemed to win as Black is in a kind of zug and I saw the Be7 idea and so on.

As usual there were so many possibilities for White though which made it hard.

Aug-20-12  Abdel Irada: <The race for second place?>

By the time I scrolled down to the kibitzing text area, I already knew my "solution" was wrong. My only consolation: I am apparently in good company.

For the record, here's what I thought of before I took the bucket of icewater in the face. My candidate moves included:

(1) 20. ♗a4, to pin the rook. Unfortunately, after 20. ...♘xa4; 21. ♕xa4, ♕b5, the pin proves of short duration, and White has no useful continuation.

(2) 20. ♕h8, to pin the bishop. I rejected this move because it unpins the knight and decentralizes the queen, which seems an undesirable tradeoff; I should, however, have examined it more closely, because the follow-up 21. ♗e7 fits the week's interference theme. *Kicks self smartly in rump.*

(3) 20. ♗xe6, to begin to crack the wall around the king. But there seems to be no real threat after the simple 20. ...fxe6, so the idea was soon abandoned.

(4) 20. ♗g3. Nothing exciting or brilliant about this move; it's a case of bailing out for steady pressure in hopes of exacting helpful concessions. In any case, it's what I settled for. My proposed line went more or less as follows:

20. ♗g3, e5;
21. ♗xe5, dxe5;
22. ♕xe5†.

Black has four replies:

(4.1) 22. ...♗e7??;
23. ♕h8† with mate to follow.

(4.2) 22. ...♔d8?;
23. ♕e8†, ♔c7;
24. ♕xf8 . If White can avoid losing to any unexpected shots, he's two pawns up and retains some pressure.

(4.3) 22. ...♖e6;
23. ♗xe6, ♖xd1†;
24. ♖xd1, ♗xe6 ∞. White has a rook, pawn and pressure for two bishops.

(4.4) 22. ...♘e6;
23. ♗a4, ♔d8;
24. ♗xd7, ♗xd7;
25. ♕d5, ♘c5;
26. ♕xf7, ♖f6!;
27. ♕e8†!, ♔c7;
28. ♕e5† . White has rook and two pawns for two bishops, and thanks to the scattered black forces, retains a slight edge.

Now let's see how Kupreichik really won.

Aug-20-12  erniecohen: <nariga: <erniecoehn: 21. Bxe6 is pretty overwhelming, e.g. 21...Nxe6 22. Rxe6+ Kd8 23. Qxf8+ Kc7 24. Nxd6 and slaughter ensues.> 22. Rxe6+ Kf7 seems ok. Yeah, it looks intimidating for black, but I dont see any major threats.>

23. ♖xf6+ ♖xf6 24. ♕xf6+ ♔g8 25. ♖d3 ♗g2 26. ♖g3 ♕b7 27. ♘h6+ ♔h8 28. ♕f8+ ♗xf8 29. ♖g8#

May-09-13
Premium Chessgames Member
  Phony Benoni: Danner is Blitzened.
May-09-13
Premium Chessgames Member
  FSR: Danner is served is right. What a crush!
May-09-13  Abdel Irada: This pun would have been perfect had Black been played by the late *Art* Danner, former district attorney of Santa Cruz County.

May-09-13  getnacke: Amazing game..
May-09-13  waustad: This was in the European U20 championship, won by Hans Ree: http://www.365chess.com/tournaments...
May-09-13
Premium Chessgames Member
  kevin86: Good attack...more like Danner was cooked. White burst through the sides of black's defense.
May-09-13
Premium Chessgames Member
  Phony Benoni: So who would win a match between Kupreichik and Nezmetdinov? And would we care, as long as we had the games?
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