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Suri Vaibhav vs Austin Yang Ching-Wei
10th Asian Individual Championship (2011), Mashhad IRI, rd 4, May-05
French Defense: Tarrasch. Closed Variation (C05)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
May-31-11  zb2cr: 26. Bxh7+, Kxh7 (forced); 27. Qh5+, Qh6.

Unlike most other posters, at this point I went for 28. g8=Q+, with the the thought that if Black played 28. ... Kxg8; 29. Qxh6, threatening Qh8#. Or if Black played 28. ... Rxg8; 29. Qxf7+, Rg7; 30. Bxg7 and White has won the exchange twice over.

May-31-11  CHESSTTCAMPS: White has an advanced extra pawn and Harrwitz bishops aimed at the castled king. Black would like to relieve pressure on the king by exchanging queens, but white does not have to play ball. White could play 26.Qh5? threatening mate, but a non-forcing move like this allows unnecessary counterplay with 26... Nc2 stopping the mate threat and gaining a tempo with the threat of Qxd4. This investigation suggests a better key move.

26.Bxh7+! Kxh7 and now there are two convincing ways to finish:

I. 27.g8=Q+ Rxg8 28.Qh5+ Qh6 29.Qxf7+ Rg7 30.Qxg7+ with a trivial endgame.

II. 27.Qh5+ Qh6 28.Qxf7 Rg8 (otherwise 29.g8=Q+ or #) 29.Re3 and the threat of 30.Rh3 should prompt resignation.

Time to see the line that Vaibhav chose.,,

May-31-11  Marmot PFL: Easy puzzle, good game by a new Indian prodigy
May-31-11  sevenseaman: Isn't it amazing to see two teenagers (14 vs 13) produce a wonderful game and coolly execute a complex combination at an international match.

It augurs a bright future for the game.

May-31-11  sevenseaman: Googled out a 'deja vu' of time warp! Not quite, but again the flavor of 10 responses.

By J Keeble., 1914.


click for larger view

White mates in 2.

May-31-11  pitimutis: Fun puzzle....was thinking of 26) ♕xe6 threatening a back rank mate, but then carefully reviewed that the black king was very limited to its movements.

Possible solution:
26. ♕h5 ♙h6 27. ♕g5 ♕e5 28.♕h7 #

or

26. ♗xh7+ ♔xh7 27. ♕h5 #

Like my second option better. Reminds me of this game: Waitzkin vs E Frumkin, 1987

May-31-11  KingV93: Got this one quickly and felt it was easier than the Monday puzzle. Just intuition, using the forcing check also connects the rooks, and ♗xh7+ jumps right out.
May-31-11  Beancounter: I found this a lot easier than yesterdays. A definite Monday puzzle.
May-31-11  0621: I got 26. Bxh7+ Kxh7 27. Qh5+ Qh6 28. g8=Q+ Rxg8(if Kxg8, then Qxh6) 29.Qxf7+ Rg7 30. Bxh7.

Is there something I missed? Why is so many people getting different lines?

May-31-11  mike1: White is THAT much better that there
are several lines ... even 26.Qxe6.
May-31-11  TheoNov: <zb2cr and 0621: 28. g8=Q+> Right on! I noticed this too -- why settle for one exchange when you can win two? :-) This is the truly crushing continuation and probably why Black resigned here.
May-31-11
Premium Chessgames Member
  doubledrooks: I went with 26. Bxh7+ Kxh7 27. Qh5+ Qh6 28. Qxf7 Rg8 29. Rac1 (threatening 30. Qxg8+ Kxg8 31. Rc8+ Kf7 32. g8=Q+) b6 30. Qxe6 Nd3 31. Qxh6+ Kxh6 32. Re6+
May-31-11
Premium Chessgames Member
  kevin86: My more was Qxe6-I think that was adequate. In the text position,black can complicate things by interposing the queen.
May-31-11
Premium Chessgames Member
  kevin86: On second thought: after 27...♕h6 28 ♕xf7 ♖g8 (▢) 29 ♖xe6 is black is dead in the water
May-31-11  Patriot: I opted for 26.Bxh7+ Kxh7 27.Qh5+ Qh6 (27...Kg8?? 28.Qh8#) 28.Qxf7.
May-31-11  stst: At least two lines: Direct, & Subtle.
Direct:
26.BxP+ KxB
27.Qh5+ Qh6
28.Qxf7 for a firm hold, or
28.QxQ followed by RxP+ for a grill.
Subtle:
26.Qh5 Rxg7
27.Bxg7 Kxg7
28.Qh7+ Kf6 etc in a longer grill
Yet another subtle line:
26.Qxe6 pinning the R...
Not that interesting unless the shortest path to mate is demanded.
May-31-11
Premium Chessgames Member
  Once: <lost in space> For that matter, we can even do it with an underpromotion to a rook: 31. g8=R+ Kh6 32. Bg7+ Qxg7 33. Qxg7+ Kh5


click for larger view

And white has a choice of three mates in one.

The "normal" promotion to a queen is probably too prosaic for words:

31. g8=Q+ Kh6 32. Q(either)-h7#

Now that ought to be a rare thing - a position where promotion to any piece leads to a forced mate in short order. Never seen it before myself, but no doubt <Phony> will be able to quote a dozen games where it has happened before.

May-31-11  wals: 21...Rfe8. not in top five.. -5.

22...Re7. not in top five.. -5.

23.Nf6. 2nd best, -1.

23...Nxf6. not in top five.. -5.

24...Rf7. not in top five.. -5.

25.fxg7. 4th best. -3.

25...Qf4. not in top five. -5.

Penalising inferior candidate moves,
a point for its distance from the
best, Black scored 25 against White's
4, giving White an easy win.

courtesy Rybka 4 x 64.

May-31-11  Sparta: <sevenseaman> I believe Qc5 is the move. Any move by black results in immediate mate.
May-31-11  ZUGZWANG67: Black is a pawn up but White has a mating attack based on his active pieces and his passed pawn.

26.Bxh7+ Kxh7 27.Qh5+ and:

a) 27...Kg8 28.Qh8 mate;
b) 27...Qh6 28.Qxf7+ (the point) 28...Qg7 29.Qxg7 mate.

May-31-11  sevenseaman: From Larsen - Spassky.

Spassky, Black just moved his Q from h6 to h8 to avoid trading Qs and lose. Larsen still won in 2 moves. How?

Could Spassky have done better? Thats the 2nd question I do not know the answer to.


click for larger view

--

W in 2.

< Sparta> Right.

May-31-11  WhiteRook48: 26 Bxh7+ was obvious enough, and so was 27 Qh5+
Jun-01-11  Sparta: <sevenseaman> 1. Qf7+ Nxf7 2. Ne6#

If black really didn't want to trade queens, perhaps he should have played Qg7 instead of Qh8. That way he would've avoided the above combination while still retaining his queen. I don't see any immediate threats from white, so perhaps Qg7 is the answer.

Jun-01-11  sevenseaman: <Sparta> Right on both counts.

For Spassky's Q move I think both h5 and g7 seem to do the trick, but isn't it too much to presume that Spassky didn't see it?

Jun-01-11  Sparta: <sevenseaman> Perhaps time trouble was the culprit.
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