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Maia Chiburdanidze vs Mehrshad Sharif
Lippstadt (1995), rd 5
King's Indian Defense: Fianchetto Variation. Immediate Fianchetto (E60)  ·  1-0
ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Aug-18-16
Premium Chessgames Member
  YouRang: Thursday 22.?


click for larger view

The first idea is the tempting 22.Qg4+.

- Obviously, 22...Bg7 is no good (23.Qxg7#).

- If 22...Kh7, then 23.Qh5+ Bh6 (...Kg8 Qh8#) 24.Qxf2+! and mate (24...Bg7 25.Qxg7#).

- If 22...Bg6, I'm stuck. 23.f4 (idea of f5) is too slow.

~~~~

So, back to the drawing board. I've learned that Black's defense hinges on his bishop being able to play ...Bg6. I don't have any good way to kick or capture the Bf5, but I see that I can pin it to the queen with <22...Bh3!>


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Now with ...Bg6 taken away, that 23.Qg5+ tactic threatens mate. What can black do on move 22 to escape that fate?

Surprisingly little!

- Unpinning with (say) 22...Qc7 just drops the bishop and mate still looms

- 22...Bg7 still loses to 23.Qg5

- Unpinning and attacking the DSB with 22...Re6 merely allows 23.Bxf5, and now the rook is pinned.

- For a moment, I thought 22...Qd7 might work (guarding Pf7), but 23.Qg5+ Kh7 24.Qh5+ Bh6


click for larger view

True, I can't play ...Qxf7+ as before, but instead I have 25.Bxf5+!, forking K+Q

Aug-18-16
Premium Chessgames Member
  agb2002: White has two pawns for a knight.

Black threatens Bg7, Bg6-Qf5, Rxe2, etc.

White has a number of options:

-22.Qg5+, to improve the queen's position.
-22.e4, with the plan Qg5, e5, f4, f5.
-22.Bh3, to pin Black's LSB and to incorporate the LSB into the attack. -22.Bd5, to pin the pawn on f7 and to enable g2 for king to allow Rh1.

-----

In the case of 22.Bh3:

A) 22... Bxh3 23.Qg5+ Kh7 24.Qh5+ Bh6 (24... Kg8 25.Qh8#) 26.Qxf7+ Bg7 27.Qxg7#.

B) 22... Bg7 23.Qg5 Bg6 (else 24.Qxg7#) 24.Bxc8 + - [Q+2P vs B+N].

C) 22... Re7 (to protect f7) 23.Qg5+ Kh7 24.Bxf5+ wins.

D) 22... Re6 23.Bxf5 just loses a piece and the game (23... Rxf6 24.Bxc8).

E) 22... Kh7 23.Qg5

E.1) 23... Bxh3 24.Qh5+ transposes to A.

E.2) 23... Bg6 24.Bxc8 as in B.

E.3) 23... Bg4 24.Bxg4 wins.

E.4) 23... Bh6 24.Bxf5+ wins.

F) 22... Qe6 23.Qg5+ Kh7 24.Bxf5+ wins.

-----

The other moves look much slower if winning at all.

Aug-18-16
Premium Chessgames Member
  diagonalley: relatively easy for a thursday... not many feasible moves to check out... but a nice tactic, all the same
Aug-18-16  mel gibson: I saw this one in about 10 seconds -
just draw the defending Bishop away.
Aug-18-16
Premium Chessgames Member
  WorstPlayerEver: 10 seconds indeed. We're getting better ;)
Aug-18-16
Premium Chessgames Member
  gofer: I looked long and hard at 22 Qg5+ and worked out that black's only defence was Bg6.

22 Qg5+ Bg7 23 Qxg7#
22 Qg5+ Kh7 23 Qh5+ Kg8 24 Qh8#

I then tried to see how the pawn pushes on the e and f files would work to recover the lost piece, but they don't.

Finally, I gave up and looked elsewhere... ...back at the original obvious Qg5+, if only we could somehow get the bishop off the b1-h7 diagonal, then Qg5+ would be mate and not just an attack that fizzles out to nothing!

<22 Bh3 ...>

Ouch! That's gotta hurt. As black I would be shell-shocked. I have the worst of all choices, get mated, lose my queen or lose control of all the squares around my king...

I can't play Qc6 which would save my bacon...

22 ... Qc7
23 Bxf5 mating

22 ... Qe6
23 Qg5+ Bg6
24 Bxe6

I think, if I was not going to resign immediately, I would activate my knight and try to get it to e6...

22 ... Nc7
23 Qg5+ Bg6
24 Bxc8 Raxc8


click for larger view

This is losing, but might hang on a while...

~~~

Yep, okay black decided to give up the ghost...

Aug-18-16
Premium Chessgames Member
  gofer: <<plumbst> 22 ... Re6?> Bxf5 and black has not saved its queen at all the problem still remains...


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As <al wazir> points out <21 ... Re6> would have been a possibility...


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Aug-18-16  saturn2: Besides the already discussed plans I also looked at 22 Bf3 covering e2 and white brings the rook to the h file in another two moves. Inbetween he can always play Qg5+
Aug-18-16
Premium Chessgames Member
  Once: This one is a little trickier than it looks. From the starting position, the move we would like to play is 22. Qg5+ with the idea of a queen-bishop mate on g7. But this falls (at least temporarily) to 22...Bg6.


click for larger view

Black is hanging on.

So we need to destroy or deflect the black bishop on f5. And that leads us to the game continuation of 22. Bh3


click for larger view

This seems to win material by piling up on the black bishop. It needs to stay on f5 to keep an eye on g6 and also to protect the black queen.

So we win that bishop and the game, right? Not quite. We started the position a minor piece down, so simply winning back a minor piece does not guarantee victory. Sure we ought to grind out an endgame with our extra pawns, but that's not a stunning victory from a position as overwhelming as this one.

We need to look for black defences. In human mode I spent a long time looking at moves like 22...Re6 and 22..Qe6. Black doesn't mind giving back the piece if he can survive the mating attack.

If we look at 22. Bh3 Re6 we might be tempted by the immediate 23. Qg5+. After all, this is the move that we have been itching to play for so long. But this doesn't really do it. Black responds with 23...Bg6


click for larger view

There is no point in white grabbing the rook on e6. White is still a piece down, so winning the exchange doesn't really do it. White can win from here but he needs to find 24. f4. He should win, but it's not a clean knock-out.

Instead of the immediate 23. Qg5+ we need to grab material and keep the pin on the Re6. The move is 23. Bxf5


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Even here we still need to be careful. All we have done is to win back the piece that we were down at the beginning. Black might defend with 23...Bg7 24. Qg5 Qf8


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From here I would be tempted to swap off all the kingside material to emerge the exchange and several pawns ahead. Fritzie wants to fish in murky waters with 25. Qh4, but I don't think that's strictly necessary.

An interesting puzzle. Finding the key move wasn't all that hard. Navigating the variations was a little trickier, especially as we start the puzzle a piece down. It's not enough just to win that piece back (or an exchange).

Aug-18-16
Premium Chessgames Member
  gofer: <Once>:

22 Bh3 Re6
23 Bxf5 Bg7


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Are you sure Fritz wants to play <24 Qg5> at this point?

Doesn't the following make black's life more difficult?!

24 Bxg7 Kxg7 (forced)
25 Qg5+ Rg6 (forced??!!)
26 Bxg6 fxg6 (forced)
27 Qe7+ ...

followed perhaps by...

27 ... Kg8
28 Kg2


click for larger view

White has three choices; attack Pg6, attack Pb7 and also bring his rook(s) onto the open h file.

Aug-18-16
Premium Chessgames Member
  Once: <gofer> Fritz finds several winning moves after 22 Bh3 Re6 23 Bxf5 Bg7.

There's not much to choose between 24. Bxg7, 24. Qg5, 24. Bxe6 and several "pass" moves like Be5 and d5. When I first plugged the position in, his favourite move was 24. Qg5. After chewing on it for a few minutes he now prefers 24. Bxg7. But both are happily winning - +6 and +8 respectively.

In human mode I would have wanted to liquidate down to an easily won endgame. Either move works for me.

Aug-18-16
Premium Chessgames Member
  PawnSac: < gofer: <Once>: 22 Bh3 Re6
23 Bxf5 Bg7

Are you sure Fritz wants to play <24 Qg5> at this point?

Doesn't the following make black's life more difficult?!

24 Bxg7 Kxg7 (forced)
25 Qg5+ Rg6 (forced??!!)
26 Bxg6 fxg6 (forced)
27 Qe7+ ...

followed perhaps by...

27 ... Kg8
28 Kg2 >

thats one way.. or another alternative; in your line, instead of 26.Bxg6 white can play

26.Qxg6+ fxg6
27.Bxc8 Rxc8
28.Rab1 b6
29.e4 Nc7
30.f4 Re8
31.Rbe1

and now he is driving a passer right down the middle instead of going around the outside.

but either way, black is quite hopelessly lost.

Aug-18-16
Premium Chessgames Member
  gofer: <Once:> Thanks!

One of these days I will cough up the cash and buy Fritz rather than blindly guessing whether I am on the right path or not...

Aug-18-16  catlover: White is down a piece, although he has six pawns to blacks four. The black king is exposed, although an immediate 22. Qg5+ allows 22.bg6, and if 23. Qh4 then bg7 and there seems to be no more attack.

It would be nice to somehow deflect blacks white square bishop off that b1-h7 diagonal.

Maybe 22. Bh3 would do it. If the bishop moves to g6 then white plays BxQ. If 22Bxh3, then 23. Qg5+ and its curtains: 23Bg7 24. QxB++ or 23Kh7, 24. Qh5+ Kg8, 25. Qh8++.

The only thing is, this looks a bit too easy for a Thursday puzzle.

Let me check

Okay, I did get the idea. However, as I suspected there is more to it than I thought. I did not contemplate that possibility that black would simply play 22.Re6 offering to give back material in order to stave off mate. Thank you to <Once> and other kibitzers who analyzed the winning lines in case black played that move.

Aug-18-16
Premium Chessgames Member
  kevin86: White desires to get rid of the bishop at f5
Aug-18-16  drollere: i also was completely distracted by Qh5+.

3/6

Aug-18-16  BOSTER: Why the moves which represent not direct threat , which meanig open sometimes couple moves later in combo, so dificult to see?
Aug-18-16
Premium Chessgames Member
  chrisowen: V a h3 hoop it a terminal it i hum v 6e it efforts boas flock bys la vow barn owl boas f5 flocks of feat it her band boas flock vams by g7 gangways land g5 gapoff it terminal it i hum v f6 flockor of feat it her band boas flock by c8 clangoffs clock by h3 hoop it a terminal it i hum v hack 5 fancy o ran it aloof rooks be it a terminal it i hum f5 fannaf vams land pov god g7 gangways load g5 godoff rooks f6 fancyon c8 chaphonks hoop it a terminal it i hum v 5 flows load by it aloof da v bad rooks be it a terminal it i hum v 6e it efforts boas flock oohs la vow barn owl f8 floor do fancyload back by h3 hoop it a terminal it i hum v 6e it efforts boas flock bys la vow barn owl boas f5 flocks of feat it her band boas flock bys o by g7 gangways land g5 gapoff it terminal it hum v hack 5 fancy o ran it aloof boas flock rooks load land vam brocade vocal it i hum v 6e it efforts boas flock bys la vow barn owl f8 floor do fancyload back by h3 hoop it a terminal it i hum v prance it efforts boas flock by priz it loss v load won wads as h3 hoop it a terminal it i hum v 6e it efforts boas flock bys la vow barn owl boas f5 flocks of feat it her band boas flock by c8 clangoffs boas flock at ooh by h3 wah wah hoop it a terminal it i hum v 6e it efforts boas flock by vow barn owl f8 floor do fancyload caddy hurry wa q chaos ooh hunt it my vocal it aloof boas flock vams f5 fannaf vam cog kan do exhonour jam ooh v o h3 hoop it a terminal it i hum v f6 flockor of feat it her band boas flock la c8 clangoffs by h3 hoop it a terminal it i hum v hack 5 fancy o ran it aloof rooks be it a terminal it i hum v rap poz it zaggy it zilch v priz it loss v load wands wa q change it thunk hurry hon hut it my vocal it aloof vam ohm vs nom nom nom vam change it ice cog gack kan do v dixie it exhonour v jam ooh v o h3 hoop it a terminal it i hum v 6e it efforts boas flock la vow barn owl boas f5 flocks of feat it her band boas flock la vs by g7 gangways land g5 gapoff it terminal it i hum v f6 flockor of feat it her band c8 clangoffs boas flock by h3 hoop it a terminal it i hum v hack 5 fancy o ran it aloof v vam boas flock rooks hoof bad for won by faggot it a terminal it i hmm v 6e it efforts boas flock la vow barn owl camp v gashod by gog v gangway v go by dadoff by cad capoff vam by fly wa h3 hoop it a terminal it i hum v f5 fannaf it an good i it ebbs vam v bad by cad by cod v changes ooh farm it hunt it my vocal it aloof vams v f6 flockof q came it jove it her band boas flock by h3 oohs clock it afford by it and by vams v danghoods load g5 gapoff low by hangof vocal it aloof vam v bad i it eggs f8 floor do fancyload boas flock dad hand c8 changeoff loads dabhoh calls dogoff chord dobman load g5 gapoff x e8 it eggshonks v load f6 flockof by by;
Aug-18-16
Premium Chessgames Member
  chrisowen: da da 22.Bh3 hoop it a terminal it i hum v q cog clang by c8 choochoos 1 chap chop i cog cove it eggs back v cog garcon clang conga by h3 hack 5 rooks be it terminal it i hum f5 fannaf vams load pov god g7 gangways load g5 goadof rooks f6 fancyon c8 chaphonks hack 5 rooks load vs won q cas cosm cogs caps vam calls cabs cobs chords cocks it a hoop it a terminal it i hum v cans chaos chasm band vow barn owl kan do roof baboon go na ba ba vam cloak do h3 hoop it a terminal it i hum v wads f5 fannaf vams load g5 goadof v c8 chaphonks won vams wads wash band da nas back bask da body exhonour oxo vams v dob blood f6 fancyof by ooh vs h3 hack q cart rar;
Aug-18-16  Olsonist: After that shot, I'd resign as well.
Aug-18-16
Premium Chessgames Member
  HeMateMe: Were they both in Dr. Zhivago?
Aug-18-16  Patriot: I noticed that 22.Qg5+ would be much more dangerous if the bishop on f5 could not go to g6. 22.Bh3 seemed a very logical choice.

22.Bh3

22Bxh3 23.Qg5+ Kh7 24.Qh5+ Bh6 (24Kg8 25.Qh8#) 25.Qxf7+ Bg7 26.Qxg7#

22Be6 23.Qg5+ Kh7 24.Qh5+ Bh6 25.Bf5+ Kg8 26.Qxh6 and mate next.

22Re6 23.Bxf5 wins.

Aug-18-16  Patriot: <agb2002> You have some interesting defensive tries! Bg7, Re7, Kh7, and Qe6. I certainly did not think of those but I noticed you missed one defense that I found - Be6!

This shows how hard it really is sometimes to see all the possible defenses. I heard an IM once say that seeing defenses is key to becoming a stronger player...or something to that effect.

Aug-19-16
Premium Chessgames Member
  agb2002: <Patriot: <agb2002> You have some interesting defensive tries! Bg7, Re7, Kh7, and Qe6. I certainly did not think of those but I noticed you missed one defense that I found - Be6!>

Yes, thank you! I thought I was nearly exhaustive...

<This shows how hard it really is sometimes to see all the possible defenses. I heard an IM once say that seeing defenses is key to becoming a stronger player...or something to that effect.>

That's very true. Still the problem is how to differentiate between the essential and the superfluous?

Aug-19-16  Patriot: <agb2002> Thanks for the reply. I decided to answer on your forum.
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