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Peng Kong Chan vs Wu Kaiyu
Tan Lian Ann cup (2001), Tianjin CHN, rd 18, Jul-01
Alekhine Defense: Modern Variation. Main Line (B05)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 1 OF 2 ·  Later Kibitzing>
Nov-07-07  KOCMOHAYT: nice monday puzzle... some day...
Nov-27-07  Marmot PFL: Nice finishing move, and not all that obvious outside of a problem setting (unlike Monday's)
Nov-27-07
Premium Chessgames Member
  dzechiel: White to play. Material even. "Easy."

White has a nicely posted knight and control of the e-file. Black has only one piece developed off of the back rank.

A quick inspection attracts our eye to the long diagonals (a1-h8 and h1-a8). The f6 square in particular almost calls out to the knight, but the black queen covers that square. Also, once we move the knight, our bishop then attacks the knight on c6.

What does this all boil down to?

24 Re8

This attacks the black queen. The queen has the following moves to avoid being taken by the rook:

- 24...Qxe8 25 Nf6+ Kh8 26 Nxe8 Rxe8 27 Bxc6
- 24...Qe7 25 Nxe7
- 24...Qd7 25 Nf6+ Kh8 26 Nxd7 Rxe8 27 Bxc6
- 24...Qc7 25 Nxc7
- 24...Qb6 25 Nxb6
- 24...Qa5 25 Qxa5 Nxa5 26 Rxc8

Anything else loses more material or allows 25 Rxd8

While this move isn't difficult to find, it's the kind of move you love to make in a real game.

Nov-27-07  King mega: toooooooooooooooo simple!
Nov-27-07  mkrk17: Didnt take long to find Re8... Very easy stuff
Nov-27-07  Larsker: Peng Kong is the King Kong of Ping Pong.
Nov-27-07  patzerboy: I second Marmot: easy when you know it's a puzzle; not at all obvious in a game situation.
Nov-27-07  nimzo knight: Was easy.
23..b5 was perhaps the worst move black could have played in light of this combination.
Nov-27-07  MostlyAverageJoe: This was more difficult than yesterday. My hamster failed to find the solution, but the cat took over and had no problems.

BTW, at the time the game was played, Wu Kaiyu was 15 years old, playing against an established IM. His present rating is 2271 (FIDE).

MAJ, off to get a new hamster.

Nov-27-07  willyfly: Even game.
24 ♖e8 and Black will resign - the ♕ is lost.

The only two safe squares are e8 (capturing the ♖) and d7.

25 ♘f6+ forks them both.

Let's look just to be sure.

Nov-27-07  CaptGeorge: Wish all my games were this easy.
Nov-27-07  TheaN: 2/2

24.Re8! exposes the neglected defense of f6. Dzechiel has given every single varation FAFAI can find.

Nov-27-07  aruniitbombay: For 24 Qa5 .. I feel this is better reply from white 25. Nf6+ Kg7 26. Nh6+ ...
Nov-27-07  openingspecialist: I didn't get it :[
Nov-27-07  openingspecialist: <aruniitbombay: For 24 Qa5 .. I feel this is better reply from white 25. Nf6+ Kg7 26. Nh6+ ... > isn't Nh6+ illegal?
Nov-27-07  schnarre: Got this one right away! (still have a few brain cells left)
Nov-27-07  Confuse: its cool how the queen has no escape : )
Nov-27-07  jaykingmusic: great
Nov-27-07  notyetagm: <willyfly: Even game.
24 e8 and Black will resign - the is lost.

The only two safe squares are e8 (capturing the ) and d7.

25 f6+ forks them both.

Let's look just to be sure.>

You got it! :-)

Nov-27-07  Deceptor: Easy and nice.
Nov-27-07  notyetagm: <Confuse: its cool how the queen has no escape : )>

The sad point for Black.

Nov-27-07  savuflorin1983: After 24. ...Qa5, I think the best continuation is 25. Qh6 Qe1+ 26.Kh2 Qe5 27.Rxc8 and the queen can not parry the threats of both Nf6+ and Qxf8+
Nov-27-07  Murphyman: Folks

Really liked DZechiel's posting today as working out all the lines for black is an example of what Dan Heisman calls "real chess". I looked at about half or 2/3 of the lines and assumed Re8 must be the solution which gained white Q for R&N... an example of what Dan calls "hope chess" Neatly underlines the difference in rating (playing strength) between myself & DZechiel and probably proves Dan's comments that a good player has a better thought process than a weaker one and is surprised by his opponent's replies less often.

Nov-27-07
Premium Chessgames Member
  patzer2: For today's puzzle solution, the decoy/deflection 24. Re1! forces the Queen to capture the troublesome Rook or to flee. In either case, White's sham sac offer wins.

If Black captures the offending Rook with 24...Qxe1, then White gets back the Queen and more with the Knight Fork combination 25 Nf6+ Kh8 26 Nxe8 Rxe8 27 Bxc6 . If the Rook isn't captured, the Queen has no safe place to go, and so, as <dzechiel> notes, Black's surrender is forced.

P.S.: Esentially, this is a best play case of White winning decisive material with a decoy and a Knight Fork. However, if Black answers 24. Re1! with 24....Qb6, White has an amusing mate after 25. Qh6! Qd4 26. Rxc8 Qa1+ 27. Bf1 Nd8 28. Rxd8 Qg7 29. Nf6+ Qxf6 30. Rxf8# 1-0

Nov-27-07  Geronimo: Mostly Average Joe : You join Mikhail Bulgakov in the elite club of masters with chess playing cats!
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