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Petr Haba vs Jiri Lechtynsky
Czech Championship (2005), Karlovy Vary CZE, rd 4, Feb-04
Sicilian Defense: Scheveningen. Classical Variation Paulsen Variation (B85)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Feb-23-05  erikcu: I think this is the quickest I ever solved a Wednesday puzzle. It is not a forced conclusion, but there is not much left for black to do, which does not equate loss of major material.
Feb-23-05  zabbura2002: What is the continuation if 29. .. Qf8 ?
Black might eventually lost because of losing too many major pieces, but is there any perpetual mate position in a few moves?
Feb-23-05  minimaxing: 29. Rxf6
Feb-23-05  Halfpricemidge: Similiar to Fischer vs. Benko 1963 19. Rf6
Feb-23-05  Marvol: <zabbura2002: What is the continuation if 29. .. Qf8 ? Black might eventually lost because of losing too many major pieces, but is there any perpetual mate position in a few moves?>

I like your concept of 'perpetual mate' :-)!

I don't think there is a quick mate after ♕f8, because black has got all the weaknesses covered (g7 and the back rank). Obviously, after 30. ♖f6xb6 he is a ♖ and a ♗ behind, which doesn't do his winning chances any good...

Feb-23-05  your brilliance: Very nice indeed. I got it after a few minutes. Black must guard against mate at g7 and the back rank at c8. White picks off the two most effective defenders of those spots one by one, and the black Q and R are overburdened.
Feb-23-05  bugeyes: My first kibitz ever! Maybe someday I'll have a worthwhile thought to share!
Feb-23-05  patzer2: The 29. Rxf6! solution to today's puzzle is a decisive deflection, which utilizes the pin and a couple of mate threats (including a back rank mate threat) to set up a winning "double attack" after 29...Qxf6 30. Rxf6!
Feb-23-05  patzer2: <buqeyes> Welcome to chessgames.com and the discussion forum.
Feb-23-05  patzer2: Perhaps worth considering for Black was Fritz 8's recommendation 20...Ng4!? 21.Ba4 Qxe3 22.Qxe3 Nxe3 23.Bxd7 d5 24.f5 dxe4 25.fxe6 f5 26.Rxa6 g5 =.
Feb-23-05  EyesofBlue: Totally agree Cu8sfan <The is not only weak because of the g7-mating threats but also because of the back rank threat. That's what finally broke his neck.>
Feb-23-05  Stonewaller2: Of course after 29. ... ♕xf6 30. ♖xb6 ♕f1+ 31. ♔h2 and Black's checks are over. Black's minor pieces were looking pretty solid to this woodpusher, though, until the Exchange sacs exposed the weakness of his position.
Feb-23-05  Stonewaller2: After 28. ... ♔f8 29. ♖xf6 ♕xf6 30. ♖xb6 ♕xb6 31. ♕xg7+ and 32. ♕xf5+, is White's extra ♙ enough?
Feb-23-05
Premium Chessgames Member
  kevin86: This finish is a wild orgy of pseudopins-and real ones as well:

29...the pawn cannot take so the queen can and does ♕xf6

30 ♖xb6,threatening queen and rook-but both are pseudo-pinned. The rook must protect against ♕c8# and the queen against ♕xg7#. If black tries a feeble escape-he still gets mated. eg,♕d8 at g7-♕xh6 by ♖b8# etc.

Feb-23-05  Zaius: I found it in about 30 seconds! Woohoo I'm finally getting better at these!
Feb-23-05  hypermodern: wow, give it up for white's piece power !! That'll shatter an opponents ego, ouch
Feb-23-05
Premium Chessgames Member
  beatgiant: <Stonewaller2>
I don't quite understand the line you posted, because it looks like White ends with a bishop and pawn for a rook, which is no material advantage.

On 28...Kf8, why wouldn't White simply play 29. Be3 and keep building the pressure? For example, 28...Kf8 29. Be3 Nc4 30. R6xf6 wins.

Feb-23-05  Stonewaller2: Permission to revise and extend my remarks: "Is White's extra ♙ + ♗ enough against Black's ♖?"

On 28. ... ♔f8 29. ♗e3 ♕d8?!

Also, after 28. ... ♔f8 29. ♖xf6 ♕xf6 30. ♖xb6 ♖xb6 31. ♗xg7+ ♕xg7 32. ♕c8+ followed by 33. ♕c7+ wins the ♖ but comes out materially even.

This is all back of the envelope stuff, feel free to fire up the computers out there and show me the error of my ways.

Feb-23-05
Premium Chessgames Member
  beatgiant: < Stonewaller2: Permission to revise and extend my remarks: "Is White's extra + enough against Black's ?"> Permission granted, but that looks like a draw at best.

<On 28. ... ♔f8 29. ♗e3 ♕d8?!> This allows 30. Rd1, which appears to win after 30...Qc7 31. Bxb6 Rxb6 32. Rxb6 Qxb6 33. Qc8+ Kd7 34. Rd7+, etc.

Feb-23-05
Premium Chessgames Member
  beatgiant: <Stonewaller2>
I don't see a good defense for Black after 28...Kf8 29. Be3. Another example is 28...Kf8 29. Be3 Nc8 30. Raxf6 gxf6 31. Bh6+ Ke8 32. Rd1 Nd6 33. Qg8+, etc.
Feb-23-05
Premium Chessgames Member
  penarol: This is a wonderful webpage!!

Very nice finish!

fian:
I wonder how many games are there with two exchange sacrifices in consecutive moves.

Well, I can tell you by heart now just one (but there are many more):

Tal-Najdorf, Leipzig, 1960, when Tal
sacrifices the exchange on move 21, and
a bishop on move 22 (the second could not be accepted, but that did not change the result of the game )

Feb-23-05  Backward Development: very easy puzzle today, caught it as soon as I saw it. This theme is rather common in the Sozin when white puts his queen on g3 and after black castles he plays Bh6, If black defends g7 with Bf6, he's always got to look out for destruction moves.
Feb-23-05  morphy234: That was easy !!! My fastest solve ever: about 5 seconds. saw the whole combination! i must have improved.
Feb-24-05  CAPA2422: I wish I had a sign when I played that would blink the words.. "White to play and Win". That would improve my rating by at least 100. Anybody disagree?
Feb-24-05  Stonewaller2: That one and other one that would say "don't move there you blinking idiot!" ;)
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