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Joanna Dworakowska vs Alexander Shabalov
15th Monarch Assurance (2006), Port Erin IOM, rd 1, Sep-23
Sicilian Defense: Lasker-Pelikan. Sveshnikov Variation (B33)  ·  0-1



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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Apr-13-17  EIDorado: what about Ne3 followed by Nc2 or Qh3. It looks simple and effective to me.
Apr-13-17  JohnTal: 24...Ne3 and White survives with 25 Ne3 ... Bh6 followed by 26 Bf1
Apr-13-17  Walter Glattke: The first moment I thought for Qxh3, but the threatening is Qg2 - deadly, no defense.
Apr-13-17  Walter Glattke: Correction:"I thought for Qh3xh2"
Apr-13-17  gofer: Some have said that Nxf2 screamed to be played, but for me I had noise-cancelling headphones on today. It took quite a while to ignore Nxh2 and other moves. But finally the racket was too loud to ignore...

<24 ... Nxf2>

The knight is immune

25 Kxf2 Qh3

At the very least black is going to going to take Nc2 and two pawns and if white gets the defence wrong its looking like mate.

26 Ne3 Qxh2+
27 Kf1 Bc8!

26 Nd4 Qg2+
27 Kd3 Bh6+
28 Kxd4 f2+
29 Kd3 fxe1=N#

26 Na3/Nb4 Qg2+
27 Kd3 Bh6+
28 Kxd4 f2+
29 Kd3 fxe1=Q

So, if we aren't going to take the knight then what defence is available!?

<25 Bf1/Ne3/Be3 Nd3!>

The same move for black opens up white like a kipper. Black threatens f2+, Nxe1, Nxc1 and our old friend Qh3, defence looks VERY difficult...

Apr-13-17  Mendrys: Chess blindness is one thing but what about chess illusion or chess mirage? Somehow at the puzzle position I saw the black Queen being on d6 with a black pawn on d7 and didn't see a win, which there isn't one.

click for larger view

Likely a sign that these tired eyes should be in bed!

Apr-13-17  AlicesKnight: 24...Nxf2 gives Black 2 connected central Ps, a route in via h3 and enough to be sure of a win. White's forces are self-blocked offside.
Apr-13-17  stacase: Spent oodles of time trying to find a way to dislodge White's Bishop so Black's Queen could occupy h3 safely. Finally 24....Nxf2 opens up the south east corner of the board no matter how Black decides to respond.

White's response 26.Nd4 is mystifying at best as it's a romp for Black's Queen after that. . . .

<I keep forgetting to say something about the new addition of the little tip you get when you click on [POST KIBITZ] I'm waiting for "Buy Low Sell High" to appear.>

Apr-13-17  gofer: One interesting combination is a queen sacrifice...

24 ... Nxf2
25 Bf1 Nd3
26 Rd1 Qf5
27 Ne3 ...

click for larger view

27 ... f2+
28 Kh1 Qf3+
29 Bg2 Qxd1+!

click for larger view

30 Nxf1 f1=Q+ (Nf1/Bf1 Nxc1 )
31 Bxf1 Rxf1+
32 Kg2 Rxd1

click for larger view

Threats of Bxd5 followed by Rxb2+ are impossible to avoid. White isn't dead yet, but is in real difficulties.

Apr-13-17  Moszkowski012273: 24.Bf1... holds.
Apr-13-17  Cheapo by the Dozen: ... Nxf2 is a move that can reasonably be played on Spielmannesque faith.

If White declines, then Black is momentarily up a pawn with dangerous connected/advanced passed pawns. Admittedly, one of the pawns is defended only by a knight that itself hangs; still, Black is very likely to be happy about his position if White declines.

And if White accepts -- well, we see what happened. :)

Apr-13-17  morfishine: <24...Nxf2> 25.Kxf2 followed by <25...Qh3> looks like a powerful transfer of power


Apr-13-17  Walter Glattke: To gofer: 24.-Nxf2 25.Bf1 Nd3 26.Rd1 f2+
27.Kg2 Qg4 28.Rxd3 exd3 29.Bf5 Rxf5
30.Ne1 Qe4+ 31.Kh3 Bc8+ 32.g4 Qxg4#
Or 28.h3 Qf3+ 29.Kh2 Be5 30.Bf4 Rxf4
31.Rxd3 exd3 32.Ne1 fxe1Q 33.Rxe1 Ra4
34.Qxa4 Bxg3#/Qxg3#
Premium Chessgames Member
  agb2002: The material is identical.

White threatens Qxa2 and Rxe4.

Black has Nxh2 and Nxf2. In the case of 24... Nxh2 25.Kxh2 Bc8 26.Bf1 Black doesn't seem to have compensation.

In the case of 24... Nxf2:

A) 25.Kxf2 Qh3

A.1) 26.Ne3 Qxh2+

A.1.a) 27.Kf1 Bc8 28.g4 (28.Rd1 Bh3+ 29.Ke1 f2+ 30.Ke(d)2 f1=Q+ wins) 28... Bxg4 wins (29.Nxg4 Qg2#; 29.Rd1 Bh3+ as above).

A.1.b) 27.Ng2 Qxg2+ 28.Ke3 f2 29.Rf1 Qf3+ 30.Kd2 e3+ 31.Kc2 e2 wins decisive material.

A.2) 26.Bf1 Qxh2+ 27.Ke3 Qxc2 with two extra pawns and the threat f2 followed by Rf3# or fxe1=Q.

A.3) 26.Rf(h)1 Qg2+ 27.Ke1(3) Qe2#.

A.4) 26.Bf4 Qxh2+ 27.Ke3 (27.Kf1 Bc8 as in A.1.a) 27... Qxc2 with two extra pawns and the threat g5 trying f2.

B) 25.Qxa7 Nd3 with the triple threat Qh3, Nxd1 and f2+ seems to win decisive material. For example, 26.Rf1 Ra8 27.Qe3 Rxa1 28.Nxa1 Qh3 29.Qd2 f2+ wins decisive material (30.Kh1 Qxf1#).

C) 25.Be3 Nd3

C.1) 26.Bxd3 exd3 with the double threat Qh3 and dxc2.

C.2) 26.Rf1 Qh3 27.Rf2 Nxf2 wins.

C.3) 26.Red1 Qh3

C.3.a) 27.Rd2 f2+ 28.Bxf2 Nxf2 29.Rxf2 (29.Bf1 Qf5 wins a piece) 29... Rxf2 30.Kxf2 Qxh2 followed by Qxc2 wins a piece.

C.3.b) 27.Ne1 Nxe1 28.Bf1 (28.Rxe1 Qg2#) 28... f2+ 29.Bxf2 Nf3+ 30.Kh1 Qxh2#.

Apr-13-17  eblunt: How about 25.Qxa7 for white ? Threatens the N and gets the Queen back into action.
Apr-13-17  Walter Glattke: Options to these ways:
A.1.a 27.Kf1 Bc8!?
27.-f2 28.Ke2 f1Q++ 29.Kd1 Qxe1+
29.Kxe1 Rf2
A.1.b 27.Ng2 fxg2+ 28.Ke3 Qg3+
A2) 26.Bf1 Qxh2 27.Ke3 f2
C) 25.Be3 Nh3+ 26.Kf1 Nf4
More win ways possible
Apr-13-17  patzer2: After searching fruitlessly for other alternatives, I finally thought to myself today is Thursday. Thursday is difficult. And what could be more difficult than a tough demolition combination?

So I started looking at 24...Nxf2! I didn't see all the myriad of combinations through to the end. However, I figured I had winning chances because of the position. Black should be winning because of the exposed White King, at least two pawns for the sacrificed Knight, two connected passed pawns barreling down the center and active pieces ready to attack the King.

Following the game line, and attacking as Black, I got as far as 24... Nxf2 25. Kxf2 Qh3 26. Nd4 (diagram below)

click for larger view

Here, I didn't try to calculate and automatically went for the pawn grab with 26...Qxh2+ which according to Deep Fritz 15 wins with mate-in-80.

With a bit of calculation, I might have seen the simpler and stronger game moves 26... Qg2+ 27. Ke3 Bh6+ 0-1 (diagram below)

click for larger view

White resigns here because of the mate-in-four to follow with 28. Kxe4 f2+ 29.Nf3 Qxf3+ 30.Kd4 Bg7+ 31.Re5 Bxe5#.

P.S.: White could have prolonged the game and put up a bit more resistance with 26. Rf1 Qxh2+ 27. Ke1 Qxc2 28. 9Rf2 Bxc3+ 29. bxc3 Qxc3+ 30. Bd2 Qd4 31. Bf4 Rbc8 (-6.52 @ 21 depth, Deep Fritz 15) when play might have continued 32. Rc1 Rxf4 33. gxf4 Qe3+ 34. Kd1 Qxf4 35. Rcc2 (35. Rfc2 e3 36. Qxa7 Qe4 37. Qxb7 Qd4+ 38. Ke1 Qh4+ 39. Kd1 Qh1+ 40. Bf1 Qxf1#.

White's decisive mistake was 24. Nc2?, allowing 24...Nxf2! . Instead, 24. Bf1 Nf6 25. Rd1 Rf7 26. Nc2 a6 27. Qa4 Qc8 28. Bf4 (+0.50 @ 20 depth, Deep Fritz 15) would have left White with a good game.

Apr-13-17  saturn2: Nxf2 clears the way for the queen to reach h3
Premium Chessgames Member
  OhioChessFan: <patzer2: Here, I didn't try to calculate and automatically went for the pawn grab with 26...Qxh2+ which according to Deep Fritz 15 wins with mate-in-80.

With a bit of calculation, I might have seen the simpler and stronger game moves 26... Qg2+ 27. Ke3 Bh6+ 0-1 (diagram below) >

A protected check with the Queen on a square adjacent to the King? All rules have exceptions, but that's one I think is pretty fundamentally correct.

Apr-13-17  stst: Only dismantling move is 29.NxfP, allowing Qh3, the P and backing R on f-file is pressuring.... 30.KxN or not will be very uncomfortable.
Apr-13-17  stst: Did not number the moves initially, then number it wrong... should be 24.NxfP etc.
Apr-13-17  swclark25: If I were white, I would prefer to lose with <agb2002>'s line A.2) 26.Bf1 rather than 26.Nd4
Apr-13-17  swclark25: <patzer2..White's decisive mistake was 24. Nc2?, allowing 24...Nxf2! . Instead, 24. Bf1 Nf6> why would Black play 24..Nf6 after Bf1?
Apr-13-17  Gurn: White is in a weakened state. But how about 25. Rf1 Qh3 26.Rxf2 with knight going to e3 and bishops to f1 and d2. White has too much material and to many options other than capturing into mate. Is the capture forced or just chess blindness?
Premium Chessgames Member
  MKD: Why not 22. Bxe4?
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