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Peter Svidler vs Conny Holst
Copenhagen op (1991), Copenhagen DEN, rd 9
Sicilian Defense: Najdorf. Amsterdam Variation (B93)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Dec-14-06  jmelton: No kibitzing for this page yet? You've got to be kidding! This is one of the most amazing combinations I've ever seen!
Dec-14-06  setebos: Nowadays nobody raves about fantasie impromptu :(
Dec-14-06  Aspirador: It's a nice combination. But is it the most amazing ever?
Dec-23-06  superstoned: i've been working through ct-art 3.0 and this is number 709. I can whole-heartedly say that yes it is the most amazing combination that I've seen in ct-art so far (and there are many badass finish-him moves on the program). This combination has many intricate side variations where each of white's pieces play an essential role. In each line they all work together so nicely.

For example in this line White's QN has just this one sole purpose for ever being set up on the board--to move into e4 at a single perfect moment: 20...Nd8 21.Rf8 Nd7 22.Qh3+ Kg6 23.Rh8 Nf6 24.Ne4! (analysis by Blokh)

Dec-23-06  NBZ: In the final position Nd8 Rh3 wins
Dec-23-06  Aspirador: <I can whole-heartedly say that yes it is the most amazing combination that I've seen in ct-art so far.>

You are right, I was too sceptical. It is indeed the most amazing combination ever.

Dec-29-06  jmelton: One of them.
Apr-28-07  frank124c: It is a good combination but is it not just another variation of frequently played Greek Gift sacrifice?
Feb-21-10  RandomVisitor: 16.Bxe7 might work as well...
Feb-21-10  hedgeh0g: I think Bxe7 is more forcing, but I got the combination nonetheless.
Feb-21-10  kinseadm: what's the winning line for white after 16...Nxd3? Can't quite figure it out.
Feb-21-10  costachess: 16.Nd5 !!


click for larger view

A)16... exd5,
17. exd5, Ne5
18.Nxe5 dxe5
19.Qh4!!

B) 16 ... Qd7
17. Nxe7 Nxe7
18. e5!

Feb-21-10  lost in space: I had 3 candidate moves:

A: <16. Bxe7> Nxe7 17. Ng5 Bb7 18. e5 Nf5 19. Bxf5 exf5 20. exd6 Qd7 21. b4 Ne6 22. Nxe6 Qxe6 23.Rae1 Be4 White is better, but Black is not lost

B: <16. Nd5> exd5 17. exd5 Nxd3 18. dxc6 Nxb2 19. Qh4 Bf6 and Black is fine

C: <16. e5> Nxd3 17. Bxe7 Nxe7 18. exd6 Nf5 19. dxc7 Nxg3+ 20. hxg3 Nxb2 21. Ne4 Ra7 22. Ne5 Rf5 23. g4 Rxf1+ 24. Rxf1 Kg8 1:0

Feb-21-10  moraga97: I went down the 16. Nd5 road as well. It has that Tal-like, caution to the winds feel to it. As tempting as it is, the moves actually played show a great advantage for white in the final position on move 21. Can you go two more moves on either of these lines and stand as well? I couldn't do that with my 16. Nd5 analysis.
Feb-21-10  goldfarbdj: I found the first two moves, which is more than I usually manage on a Sunday.
Feb-21-10  dzechiel: White to move (16?). Material even. "Insane."

"Insane" positions give me two quite a bit different feelings. On one hand this is the ultimate challenge: analyze like a grandmaster and you could win this game. On the other hand, just how much time should I spend on this insanity before throwing in the towel?

Very often I find a key move that I like right away and I pursue variations that spring forth from that move, and sometimes my choice is right, and sometimes it's wrong. I'm gonna take that tack tonight.

The first move I see for white is...

16 e5

What's to like about this move? Well, it opens the b1 to h7 diagonal for white's light squared bishop. It also threatens combinations like 17 Bxe7 Qxe7 18 exd6. And there are all sorts of possibilities once the f-file is opened (perhaps by a knight capture on e5), and the threats after 17 Qh4 are also a little tricky for black to deal with.

So, is black scared? He has lots of candidate moves to deal with the situation. For instance...

- 16...Nxd3
- 16...Nxe5
- 16...Bxg5

I confess that I just don't have the fortitude to deal with this problem tonight. I really feel that 16 e5 is the correct key move, but that analysis tree branches early and often.

Time to check and see how this went down.

=====

I will be interested to read what the engines have to say about this position. Perhaps both Svidler and Holst found all the best moves, but there sure is a lot going on.

Feb-21-10  RandomVisitor: After 15...b5: <Rybka3>


click for larger view

<[+1.54] d=18 16.e5> Nxd3 17.Bxe7 Qxe7 18.exd6 Qe8 19.cxd3 Bd7 20.Rae1

[+1.54] d=18 16.Bxe7 Qxe7 17.e5 Nxd3 18.exd6 Qe8 19.cxd3 Bd7 20.Rae1

Feb-21-10  rigel1503: Why on Earth did black play the seemingly unnecessary 18. ... Rxf3???
Feb-21-10
Premium Chessgames Member
  Jimfromprovidence: I'm going to concentrate on the text, because it looks like the insane (clever) part happens after 18 Bxe7.

Forgetting the bad text move 18...Rxf3, let's try 18..Nxe7 instead.


click for larger view

White has sacrificed a piece, so how does he win from here?

It turns out that the beautiful combination 19 Ng5+ Kg8 20 Rxf8+ Kxf8 21 Qf3+! Nf5 22 Qxa8, wins the exchange.


click for larger view

Feb-21-10  Bdellovibrio: Peter Svidler is my favorite modern player, and I was able to find the first two moves, although I didn't anticipate black's "last breath" Rxf3, I assumed there would be resignation after Bxe7.
Feb-21-10  gofer: I can see that black is a little behind on development, and OTB I would probably play the line below, but I think I have missed today's solution...

16 e5 ...

16 ... Nxe5 (dxe5 is worse)
17 Bxh7 Kxh7 (allowing 18 Bg6 is suicidal)
18 Qh5+ Kg8
19 Bxe7 Ng6
20 Ng5 mating

Main Line

16 ... Nxd3
17 Bxe7 ...

17 ... Qxe7 18 exd6 winning as the huge passed pawn on d6 is enough!

17 ... Nxe7
18 exd6 Nf5
19 dxc7 Nxg3+
20 hxg3 winning as the huge passed pawn on c7 is enough!

Time to check...

Feb-21-10  stukkenjager: <kinseadm> what's the winning line for white after 16...Nxd3? I would go for 16.Be7: as 16.e5 is unclear.

16.Bxe7 (16.e5 Nxd3 17.Bxe7 Nxe7) 16...Qxe7 17.e5 Nxd3 18.exd6 Qd8 19.cxd3 Ra7 20.Ng5! Kg8 21.Nce4 h6 22.Rxf8+ Qxf8 23.Nf3 Rf7 24.Kg1

Feb-21-10  melianis: is sure some GMs may solve this OTB, otherwise this looks like something I could cook up in my kitchen in a couple of months...
Feb-21-10  Jjoq: to rigel1503

may be
18. ... Rxf3
20. Rxf3 Qxe7
21. Raf1 Nd4
21. Rf7 Nf5

but
22. R1xf5

Feb-21-10  rigel1503: 18. Bxe7 Qxe7 19. Ng5+ Kg8 20.Rxf8+ Qxf8 21. Qh4 Qf5 and white has nothing AND 18. Bxe7 Qxe7 19. Ng5+ Kg8 20.Qh4 Rxf1+ 21. Rxf1 g6 22. Rf7 (What else???) Qxf7 23. Nxf7 Kxf7 24. Qh7+ Kf6 25. Qc7 Bd7 26. Ne4+? Nxe4 27. Qxd7?? Rd8 28. Qxc6 Rd1# OR 26. b4 Rc8 and the Rook and two minor pieces will be too much for the queen
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