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Tristan Calistri vs Grzegorz Gajewski
27th Cappelle-la-Grande (2011), Cappelle la Grande FRA, rd 4, Feb-28
Sicilian Defense: Kan. Polugaevsky Variation (B42)  ·  0-1
ANALYSIS [x]

FEN COPIED

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Given 21 times; par: 23 [what's this?]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 3 ·  Later Kibitzing>
May-10-11  sevenseaman: <scormus, morfishine, goodevans and rilkefan> What is the fuss about Bh6? Please see my comment (second after <jimforprovidence>'s comment wherein I have dealt with the move Bh6. Please let me have your refutation and we can explore further.
May-10-11
Premium Chessgames Member
  DarthStapler: Got it
May-10-11
Premium Chessgames Member
  Once: I don't think Jim is saying that Bh6 busts the puzzle, but it is a move that has to be considered. If the Bd2 can worm its way out of danger then white may survive.

Here's the position the Jim gave us:


click for larger view

Black is up by a minor piece but white threatens to reduce the deficit by grabbing the exchange on f8.

I can't see any immediate tactics that can help black to cling on to all of his booty. But I am not sure that I am too worried. Let's just retreat the Bc4, allow white to grab the Rf8 and then torture his weak pawns.

So how about a plan of Bb5 and when white takes on Rf8, we recapture and then pile up on the weak pawns with Nf4? Something like this:

24...Bb5 25. Bxf8 Kxf8 26. Re1 Nf4


click for larger view

I am liking this for black, but it's not a clean kill. Looks like resignation may have been premature.

May-10-11  nisarg1: <scormus>24 ♗h6 ♗c5+ 25 ♔h2 ♗d5 26 ♗xf8 ♔xf8 27 ♖f1 ♗d4 28 ♖e1> ♘f4 29 g3 ♘e6

Here's what Fritz6 has to say: 28..♗xb2(obvious!) 29.♖b1 ♗c3 30.♖e2 ♖e8 31.e6 ♖xe6 32.♖xe6 fxe6; black wins two bishops and two pawns for a rook at the end of this variation.

<sevenseaman> after 24...♗c5+ 25. ♔g2 ♖xd3, 26.♘xf3!

[p.s. my analysis faltered after 24..♗c5+ 25.♔h2 (better than ♔h1)]

May-10-11
Premium Chessgames Member
  Once: Oops. Make that 26. Rd1 not Re1.
May-10-11  goodevans: <sevenseaman: <scormus, morfishine, goodevans and rilkefan> What is the fuss about Bh6? Please see my comment (second after <jimforprovidence>'s comment wherein I have dealt with the move Bh6. Please let me have your refutation and we can explore further.>

sevenseaman, the post you refer deals with <23 gxf3> whereas mine deals with <23 Rxf3>. The tactics you mention in your post do not work after 23 Rxf3.

You did give an earlier post dealing with 23 Rxf3 but that post didn't deal with <23 Rxf3 Bxc4 24 Bh6>.

May-10-11
Premium Chessgames Member
  prn: <sevenseaman: ... What is the fuss about Bh6? Please see my comment ... wherein I have dealt with the move Bh6. Please let me have your refutation and we can explore further.>

The relevant comment was:

<sevenseaman: When White responds 24. gxf3, here is how it goes (off the cuff);

24...Bc5+ 25. Kg2 Rxd3 26. Bh6 Bxc4 27. Bxf8 Rd2+ 28. Kh1 Ng3#>

First off, let's fix the move numbering, so <sevenseaman>'s proposed line is: 23. gxf3 Bc5+ 24. Kg2 Rxd3 ...

Let's follow a couple of lines from there:

Suppose White continues along the same line with 25. Bh6 Bxc4 Now Black does NOT take with Bxf8, but 26. Nxd3 The best I see for Black looks to be: 26...Bxd3 27. Rfd1


click for larger view

Which might plausibly be followed by 27...Rd8 (if Bf5 or something, then ) 28. Rac1 Bb4 29. Rc7 and Black has no more than 2 minor pieces for a rook, e.g., 29...Bxa5 30. Rxb7 Bb5.

Essentially the same result occurs if White naturally responds to 24...Rxd3 with 25. Nxd3 Bxc4 26. Rfd1 kBxd3 27. Bh6 Rd8.

I'm probably missing something better for either or both sides and it does look like Black is better off than White, but so far, I fail to see <sevenseaman>'s line as a convincing refutation of Bh6.

Enlightenment is always welcome.

May-10-11  scormus: <nisarg1> thanks, youre right. I got too fixed on improving the BN position but 28 .... Nf4? loses a tempo and the initiative. 28 ... Bxb2 and B is clearly better.
May-10-11  ProLogik: Did anyone else not get it because they were too busy looking for a mate? :S
May-10-11  Mozart72: 22. ... Qd4+ is a nice move.
May-10-11  alexrawlings: Maybe white could have tried 23 Rxf3 Bxc4 and then 24 Bh6... I think Black is winning, but resignation may be pre-mature. Mind you I'm a good 500 points weaker than both these players so they're probably better qualified to decide when to throw the towel in!
May-10-11  Chris00nj: Oh, I was looking for a mate.
May-10-11  Patriot: <<Jimfromprovidence>: In the line 22...Qxf3 23 gxf3 Bxc4, one has to respond to 24 Bh6 to fully solve the puzzle.>

I disagree. This is a technical win if black simply retreats the bishop, losing the exchange for a piece. It's definitely a good move for white to "mix things up" and it may be worth playing on at the club level or in blitz but I'm not sure at the IM-level. You may be right that it's premature to resign but for solving a puzzle or playing this OTB I consider it "good enough".

May-10-11  Mozart72: 24. ... Bc5+ if:

22. ... Qxf3
23. gxf3 Bxc4
24. Bh6 Bc5+

May-10-11  Mozart72: Then 25. Kg2 Nf4+
26. Bxf4 ...
May-10-11  Mozart72: 26. Bxf4 Kg7
27. ...
May-10-11  estrick: <ProLogik> I think I discarded the notion of looking for a mate after seeing that the only way to check White's king is with the bishop or queen on the a7-g1 diagonal. That looked like it would be easily parried with nothing to follow it up with. Couldn't see any way to sac a piece that would remove a key defender or force the king to a more vulnerable square, either.

That's probably when I looked at exchanging queens, which certainly removes a key defender of White's king. But there's still no way to sustain an attack on the king. That's when I saw the loose piece on d2, and the pin on the pawn which was defending the knight on c4.

May-10-11  scormus: <alexrawlings:....they're probably better qualified to decide when to throw the towel in!>

I am often puzzled at how quick players are to resign sometimes, and sometimes how slow. W is certainly losing but I suspect he didnt see that 24 Bh6 would force B to find the right line. Since CG put this up today I wonder if they just saw 0-1, W apparantly dropping a piece, and rated it "easy"

May-10-11
Premium Chessgames Member
  kevin86: Is this all there is? Black wins a piece after 22...♕xf3 23 ♖ (or♙)xf3 ♗xc4 24 dxc4 ♖xd2
May-10-11  CHESSTTCAMPS: In this open middlegame position, black is down a pawn, but the active bishop pair and control of the semiopen d-file provide ample compensation. The pinned d-pawn marks the white bishop as the vulnerable target. 21... Qxf3 unleases the Be6, a battery where the lesser-valued piece is behind the screen. Now white must lose material:

A) 22.Rxf3 Bxc4 23.Bh6 (23.dxc4 Rxd2 is immediately resignable) Bc5+ 24.Kh2 (Kf1 Bd5 traps the Rf3) Bd5 25.Bxf8 Kf8 26.Rf1 Bd4 27.Re1 Re8 and the e-pawn falls with a clear winning ending for black.

B) 22.gxf3 Bxc4 23.Bh6 Be6 24.Bxf8 Kxf8 25.Kh2 Nf4 also wins a pawn with two dominating bishops for a rook.

Time for review...

May-10-11  CHESSTTCAMPS: <Patriot> <You may be right that it's premature to resign but for solving a puzzle or playing this OTB I consider it "good enough".> Perhaps, but with a desperado bishop on the board at h6, (asssuming plenty of time on the clock) it is still good analysis practice to analyze until the position is more quiescent.
May-10-11
Premium Chessgames Member
  Jimfromprovidence: My opinion on the line 22...Qxf3 23 gxf3 Bxc4 24 Bh6 is for black to ignore that threat and keep up the attack.

There are plenty of ways to go here but I liked the simple 24...Bxd3, below, threatening Bc4+.


click for larger view

Now, if 25 Bxf8 Kxf8 26 Nxd3 Rxd3 follows, black is up an exchange and is likely to win one or more pawns as well because of white's inferior pawn structure.


click for larger view

May-10-11  Ghuzultyy: <Jimfromprovidence: In the line 22...Qxf3 23 gxf3 Bxc4, one has to respond to 24 Bh6 to fully solve the puzzle.>

Let's see.

Position after <24.Bh6>;


click for larger view

<24...Be6>
A simple move. 24...Bc5+ , Bb5, Bxd6 are all playable.

<25.Bxf8 Kxf8>
h3 pawn is hanging so;
<26.Kh2 Bg5>
e3 pawn is hanging so;
<27.Ra3 Bf4+>
e5 pawn is hanging and so on..

Black has great positional advantage and white can't defend much more.

May-10-11
Premium Chessgames Member
  Once: <scormus> I remember reading somewhere (sorry, can't recall the source) a suggestion about early resignations.

This strategy should be used with care, as it can backfire.

First you need to pick the right game. It needs to be a game that you don't expect to win or you don't mind losing. Maybe it's a pretty dreary position where you can see that you are just going to be ground down.

You stare long and hard at the position, chin cupped in hand, brow furrowed, pencil chewed. In fact you should think for so long that your opponent starts to get a little bit concerned that you have spotted something devastating (you haven't).

Then you cry something like: "By gad, sir, but that's utterly brilliant! I see it now. In ten moves time you are going to sacrifice your queen, perform the heimlich manouvre on the h file, then it's shades of Alexikov-Zipperdeedoodah 1961, you put me into zabaglione and wherever I move it's the classic zukertot-bogoljubov mate. An astonishing coup, sir. I congratulate you."

At this point you tip your king and accidentally knock all the other pieces over. Your opponent and the rest of the chess club are gob-smacked by the depth of your chess knowledge and calculating ability. Make a quick exit to the pub.

May not enhance your grade, but might elevate your reputation....

May-10-11
Premium Chessgames Member
  patzer2: <JimfromProvidence> After your 23. gxf3 Bxc3 24. Bh6!?, I also like 24...Bxd3 with Black getting a clear two pieces for the Rook.

However, Fritz for some reason indicates 24...Bb5 is stronger.

I would play the simple 24...Bxd3 without hesitation, but that may be because I prefer playing a simple winning line when one is available.

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