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Alexey Vyzmanavin vs Valery Zhidkov
Ch Russia (1985), Briansk (Russia)
Queen's Indian Defense: Kasparov-Petrosian Variation. Kasparov Attack (E12)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
May-20-05  peterk007: <Hongkonger> Both your suggestions are interesting moves.

On (24. Bf5 Ne5 25. Bd6 Qc6) 26. Qg3 I'd not take on e6 nor on g2. For a short moment the pressure of of g7 (mate) and of e7 (pawn push) and Black can organize. Simply 27. ... Re8!?

On (24. Bf5 Ne5 25. Bd6 Qc6) 26. Qh3 a plan with Re8 and Bc8 appears strong.

Essentially, when the white Q moves off the long diagonal the pressure is reduced and Black can dream of Nd3, something xe6, ...

In both lines white has still the exchange for nothing. But the white Queen is much less active and when the pawn on e6 gets weak a win is far away.

May-20-05  peterk007: anybody using fritz, crafty, ...?
May-20-05
Premium Chessgames Member
  Chessical: <peterk007> and <Hongkonger> Instead of Vyzmanavin's <26...Re8>, the suggestion is <26...Qc6> 27.Qg3 Qxe6 28.f4 28...Qb6+ 29.Kh1 (the B cannot get to d3) Nd3, when Black is still in ther game.

I think <28.f4> here is too losening - <28.Bf4> instead perhaps?

As for <26...Qc6> 27.Qg3 Re8 <peterk007>, 28.e7!? is interesting with the threat of Rd8+ keeping the pawn safe.

May-20-05  halcyonteam: genius move
May-20-05  Hongkonger: Chessical: "the B cannot get to d3". Whoops, I meant e3 but it can't there either because I've just put a pawn on f4. I think I will go and crawl back inside my hole covered with embarrasment. Anyway, I still think that peterk007's 26...Qc6 is a better bet than the game move.
May-20-05
Premium Chessgames Member
  jahhaj: After 24. ♗f5 ♘e5 25. ♗d6 ♖xe6 26. dxe6 ♕c6 simply 27. f3 keeping the ♕ active looks best. White has nothing to fear that I can see.
May-20-05  Marvol: OK I have unleashed Fritz and Crafty on the situation.

First, it is very funny to see how Crafty thinks 25...Ne5 is bad for black, even preferring 25...Qd6 (but I forced it to play Ne5)

Second, at about 14 ply, Fritz is so unimpressed by white's advantage (approx 1.25) that it seriously considers 25 b2-b4 as well as Be6+.

Crafty is constantly rating the whole situation as much better for white (> 2.5) no matter what lines are played. Interesting to see that great a difference.

It is a close call between 26...Ra8-e8 and 26...Qc6 for the best continuation in the game. Both of them do have a slight preference for Qc6. After Qc6, the engines seem to really get a difference of opinion.

May-20-05  Marvol: (continued)
Fritzy's favorite line(s) are (after 26...Qc6) 27 Qh3, 27 f3 and 27 Qg3. Each of these moves leads to trees of virtually-equal-valued positions, and in most of them white is not more than 1.3 ahead according to Fritz - except after 27 Qh3, Re8 28 Re3, Nd3 29 Qg3, Re7 30 b3 when Fritz suddenly jumps to 1.8 for white.
May-20-05  peterk007: <Marvol> thanks a lot. It appears that although Bf5 is a nice move, "white to move with an attack" describes the situation more precisely. - Nice to see the variety of resources on both sides. Ne5 appeared so natural to me, I did not even consider blocking the pawn qith Qd6.
May-20-05  Marvol: (continued) Crafty prefers 27 Qg3 and Qh3 whilst valueing f3 a bit lower.

It also gives many closely valued lines, the main one being:

27...Qxe6
28 Bf4, Re8
29 Re3 and here 29... Bc6, Qc6 and Qf5 get exact equal ratings ( 2.49 @ 13 ply).

I don't see a clear-cut straight quick win in any of these computer variations (Fritz's nor Crafty's), so the question is... does todays puzzle really have a proper solution?

May-20-05
Premium Chessgames Member
  Richard Taylor: I 26...Qc6 27 f3 and White threatens Rxe5 and looks to eb winning. I found the first move...but not the whole sequence of course... I spent a lot of time on 24. Qh3 24 Qg3 and also 24 Re6

The idea of 24 Re6 is interesting if Ne5 25 Rf6 B:d5 26. Rf8+ R:f8 27. Qe5 but then Qf2+ but there is 26. Qg6 ..but all Black has to do is 24..R:e6 25. d:e6 and unfortunately the rook sac on d7 doesnt work.. I forgot about B on b1 - once I thought of it - I realised it was the move to play it to f5 as I had struggled to find a way to get the d7 knight out of the way.... So I "got" this one for what its worth (well nice for me!) - there was some good defence by Black - a very interesting game

<jahhaj > yes f3 was the move I knew White always had

May-20-05  Marco65: <It is very funny to see how Crafty thinks 25...Ne5 is bad for black, even preferring 25...Qd6> Not funny to me. I also thought the main variation goes 25...Qd6 26.Bxd7 Qxd7 27.Qxf6. Why has anybody else analyzed only 25...Ne5?
May-20-05
Premium Chessgames Member
  Richard Taylor: 27 h3 is an very good move as White cant play 27 Nd7 as Nxd7 28 ed7 Re1# This was a great tactical to and fro (and stategical ideas)
May-20-05
Premium Chessgames Member
  Richard Taylor: 25...Qd6 26 Be6+ Kh8 27 Bd7 Qd7 28 Qf6+ Kg8 29 d6 Re1 30 Re1 and Black i lost - my analysis
May-20-05
Premium Chessgames Member
  Richard Taylor: Or 29....Rad8 30 h4 White seems to be much better
May-20-05  szyymek: next black's continuation in 24'th move is 24...Qc7 and Zhidkow play ofcource 25.Be6+ then Black King goes to the corner h8 and what is next? There is no win for the whites...
May-20-05  awfulhangover: I found Bf5!! It's the best move, but not a forced win, is it?
May-20-05  pubs r us: Darn, found the initial move but missed Black's best response.
May-20-05  Marco65: <szyymek> Read what Richard Taylor suggested against my 24...Qd6 (we both wrote "25..." but you have to decrease by 1 the move numbers). It also works against 24...Qc7.
May-20-05
Premium Chessgames Member
  kevin86: Today's theme involved the use of mate threats behind a pseudo-pin. White also,wisely took the time to give his king air on move 27 to avoid an embarrassing situation.
May-20-05  Rocafella: LoL I went for 24...Re6 for white, thats how bad I am
May-20-05  EmperorAtahualpa: Hats off to the people who managed to solve this puzzle!
May-20-05  tjshann: Excuse me, but "White to play and win"? I mean, Bf5 leads to a position 15 moves later where White is up the exchange, but pleeeez!
There is a lot of chess between move 24 and move 39. How about, "White's best move?"
May-20-05  fgh: Around 4-6 seconds for this one.
May-26-05  patzer2: The May 20th puzzle solution 24. Bf5!! initiates a strong surprise attack on Black's weakened castled position:

<24. Bf5!! Ne5> [If Black takes the offered Bishop, he gets mated after 24... gxf5 25. Qg3+ Kf7 26. Qg7#. Other tries also fail [i.e. 24... Re7 25. Rxe7 Qxe7 26. Re1 Ne5 (26... Qd6 27. Be6+ Kh8 28. Bxd7 Qxd7 29. Qxf6+ Kg8 30. Re7) 27. Be6+ Nf7 (27... Kh8 28. Rxe5) 28. d6 Qd8 29. b3 Bc6 30. bxc4 Kh8 31. Bxf7 Qxd6 32. cxb5 axb5 33. Be6 Rf8 34. Bxf8 Qxf8 35. Qxc6 .] <25. Be6+ Rxe6> (Losing immediately is 25... Kh8? 26. Rxe5 .) <26. dxe6 Re8 27. h3 a5> (Black puts up more resistance, but just loses more slowly, after 27... Qc6!? 28. f3 Qxe6 29. Bf4 (29. f4 Qb6+ 30. Kh1 Qf2 31. Qd2 Bxg2+ 32. Kh2 Nf3#) 29... Qf5 30. Bxe5 fxe5 31. b3 cxb3 32. Qxb3+ Kg7 33. a4 e4 34. axb5 axb5 35. Qc3+ Kg8 36. Qc7 Qc8 37. Qxc8 Rxc8 38. fxe4 .] <28. Rd7! Qc6> (If Black captures the poisoned Rook, he loses to 28...Nxd7 29. exd7! Rxe1+ 30. Qxe1 .) <29. Rg7+ Kh8 30. Qg3 Rxe6 31. f4 Nf7 32. Rxe6 Qxe6 33. f5! is a deflection which forces a winning double attack after 33...Qb6+> (Also futile is 33... Qd5 34. Rxh7+ Kxh7 35. Qxg6+ Kh8 36. Qg7#.) <34. Be3 Qd6 35. Qxd6 Nxd6 36. Rd7! Nxf5 37. Rxb7 Nxe3 38. Rxb5 a4 39. Kf2 1-0>

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