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Daniel Stellwagen vs Chao Li
World Junior Championship (2006), Yerevan ARM, rd 8, Oct-11
Spanish Game: Closed Variations. Breyer Defense (C95)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-18-06
Premium Chessgames Member
  al wazir: The hard part was deciding whether to take with the ♗ or the ♘ first. I went with the ♗, because if black plays 31...Kf8 or Kh8 white can play either 32. Bxh7 or the Bxf7, with a threat of 33. Rg8+.

But I was planning to play 34. Rag1 instead of exd6.

Oct-18-06  syracrophy: <<<<al wazir: The hard part was deciding whether to take with the ♗ or the ♘ first.>>>>

Its seems to be the same thing. If instead 31.♘xg6 hxg6 <31...fxg6 32.♗xg6 ♔h8 33.♗f7> 32.♗xg6 ♔f8 33.h7! <33...♔g7 34.♗c2+! <34...♔h8 35.♖g8#; 34...♔f8 35.h8=♕+; 34...♕xg5 35.♕xg5+>>

Oct-18-06
Premium Chessgames Member
  xenophon: bit easy i thought
Oct-18-06  dzechiel: Got it. I think 31 e6 was also possible.
Oct-18-06  Marco65: I thought 31.exd6 (with the idea of 32.Qd4 winning the knight) was winning but I miscalculated. Black can play 31...Rxd6 32.Qd4 Qf6! 33.Qxc5 Qxg5 34.Qxd6 Qxh4+

31...Rxd6 and 32...Qf6! seems to be the only good defence anyway, for instance:

a) 32...f6 33.Nxg6 hxg6 34.Rxg6+ should win (if there's nothing better, 35.Qxc5 takes back the piece)

b) 31...Qf8 32.Nxg6 fxg6 34.Rxg6+ hxg6 35.h7+ Kg7 36.Qxf8+ Kxf8 37.h8=Q+ with an easy mate

Oct-18-06  eblunt: <Al Wazir> if 34 Rag1 then 34 .... Bg4 and black has some defence. (if QxB black can force queen swap)
Oct-18-06  greensfield: Got this one. White's previous move 30.e5 gives you the clue for the continuation.
Oct-18-06  Chris1Clark: Does it count that I started with N first then Bish. Seems to make no material difference and the puzzle then unwinds accordingly.
Oct-18-06  ahmadov: It is easy to notice that three pieces can take g6 pawn, but slightly difficult to immediately notice the mate.
Oct-18-06  psmith: <eblunt> How does Black force a queen trade after 34. Rag1 Bg4 35. Qxg4? I don't think you're right.

Oct-18-06  psmith: <AlWazir> Analysis with Fritz 5.32 seems to show that 34. Rag1 wins as well.

The main line I have found is 34... Bf5 35. exd6! Qe4 36. Qg5! Qe4+ 37. f4 Qe2+ 38. Rg2 winning (threat of Qf6+).

Oct-18-06  eblunt: <psmith> No, sorry you're right. I was was thinking after 34 .. Bf5 if 35 QxB then 35 ... Qxe5.

34 Rag1 looks winning , yes.

Oct-18-06  zb2cr: I went for the Knight sacrifice on g6 first, planning for the Bishop sacrifice if Black captured.
Oct-18-06  prinsallan: Got the whole sequence, but there must be several solutions. Everything in whites attack points at the black king. A king that is poorly defended.
Oct-18-06  Titicamara: Fantastic game here.
Oct-18-06  YouRang: I'm happy :-( that others found it so easy. I missed it. I even looked at the double piece sac, but didn't see 34. exd6!, clearing the a1-h8 diagonal with tempo (attack on the queen).
Oct-18-06  YouRang: <greensfield: Got this one. White's previous move 30.e5 gives you the clue for the continuation.> Hey! How did you know what the previous move was without peeking? ;-)
Oct-18-06  MyCatPlaysChess: I missed that the white Queen can be pinned to the King along the h2-b8 diagonal. Without having a board in front of me, I was thinking that 34.Rg7 overloads the black queen allowing the white queen to penetrate on either f6 or f8... this plan fails to the pin 34... Qxe5!
Oct-18-06  percyblakeney: I thought it was tricky for a Wednesday. I looked at it for a minute and didn't see immediately what would follow after Kh8 and then guessed it all would start with e6 instead.
Oct-18-06  Thrajin: For some reason I hear Mortal Kombat announcer Shao Kahn's voice saying "Li Chao Wins. Flawless Victory."
Oct-18-06  kevin86: I looked for the sac at g6 with the rook firsty,but then saw that if the rook were saved and the bishop and knight sac-ed it would be a formidable fighter. Add that to the subtle queen move to attack on the diagonal-and you have a quick KO.
Oct-18-06  clausantos: Even amateurs like me can get this puzzle. It's for monday...
Oct-18-06  mazetas: I will agree with <ahmadov> <It is easy to notice that three pieces can take g6 pawn, but slightly difficult to immediately notice the mate>.
Oct-18-06  greensfield: <YouRang><Hey! How did you know what the previous move was without peeking? > I always peek, doesn’t everybody! I find if you cut and past (via the PGN view facility) up to the move without looking at the rest of the moves (cover them with your hand facility), you can then play through the game to try and understand how the position was reached. In this case 30. e5 highlighted, for me anyway, candidate moves 31. Bxg6, e6, or exd6.
Oct-18-06  vibes43: I saw all the moves including the sacs but just couldn't visualize in my mind the end result especially all the pieces that would be out of the way. Failed again but enjoyed the attempt.
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