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Laszlo Szabo vs Gideon Stahlberg
Leipzig ol (Men) qual-C (1960), Leipzig GDR, rd 9, Oct-26
King's Indian Defense: Accelerated Averbakh Variation (E70)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Nov-18-05  Runemaster: <eaglewing> After 25.Bd4 exd4 26.Rxf4 Bf5, apart from <jahhaj's> suggestion (which you also mentioned) of simply playing 27.cxd4, I think 27.Qg5 also looks good - it renews the threat of Rxf5 immediately and prepares a rook invasion on e7.

<pawntificator: <eaglewing> the only problem with that line is that white can capture with the other Rook.> What other rook? In <eaglewing's> line only one White rook can capture on f4.

<jahhaj> In the line you gave, there is no immediate threat of 28.Rxf5 because Black replies first 28...Qxg3 and then takes the rook.

Nov-18-05  pawntificator: Gosh, I was playing a completely different line in my head that followed the text until 26...Bf5. My oversight. It looks like <eaglewing> is right. The best I can see for white in that line is still pretty slow.
Nov-18-05  eaglewing: <Runemaster> Yes, 27.Qg5 will do the job!

However, I think if Black trys 27.Qg5 Qc8 the easiest would be 28.+29. Qf6 and Rh4, interchangeable, instead of Re7. And with your 27.Qg5 other defenses just usually win the black bishop with a still ongoing attack.

Nov-18-05  LIFE Master AJ: I found Bd4, but it took several minutes ... I mainly looked at everything but Bd4, (first); I was thinking there must be something more forceful. (The puzzles here usually contain some sort of sacrifice, I was just making sure there was not the case here.) I thought 25...Nxd5 might be a mistake, but it is the first choice of Fritz. I completely missed taking on e5 with the Rook, my main line was 26.Bxe5. (Which is the second choice of Fritz - and also wins.)

Once more, thanks to "ChessGames" for a very stimulating mental workout!

Nov-18-05  LIFE Master AJ: Postlog: I also spent a lot of time looking at Be3 (before I examined the move of Bd4); with the idea of Bg5-f6 ... with checkmates to follow. Fritz gives this a "plus-over-a-line." (But - of course - Be3 is not nearly as forceful as Bd4.)
Nov-18-05  SamuelS: Here is the position after 25. Bd4 exd4 26. Rxf4 Bf5 27. Qg5 Qc8:


click for larger view

Now I would also play 28. Qf6 Be6 29. Rh4 Kf8 30. Rh8#. Other lines are similar.

Nov-18-05  notsodeepthought: <An Englishman: ... those c-pawns and Bishops look awful purty together. Heck, it might even work.> <Awful purty>? Are these really the words of an <Englishman>? Sounds more like Southern slang to my untrained ears...
Nov-18-05  Saruman: 25.-Re8?? 26.Qxf4 exf4?? 27.Rxe8+ Kh7 28.Rh8#.
Nov-18-05
Premium Chessgames Member
  benveniste: <jahhaj>, black can exchange the bishop, but it's still a lost end game. When I played it out, it went:

25. ♗d4 exd4
26. ♖xf4 ♗f5
27. cxd4 ♖e8
28. ♖ef1 ♗e6
29. h4 ♗xd5
-- or --
28. ♖xe8+ ♖xe8
29. ♖xf5 ♕xg3
30. ♗xf7+ ♔g7
31. hxg3 ♖e7
32. ♗xg6 ♔xg6

I didn't get close to this puzzle, trying 25. ♕g5. That may win with careful play, but is clearly inferior.

Nov-18-05  LIFE Master AJ: Here is my analysis, I pick up at the critical part of the game. (As an informational note, when Fritz wants to play "give-away," or suicide chess, I often do not consider thses moves. A human will generally resign before playing this way.) I pick up the game at move twenty-five here.

24.Bd5! Rd8?;
This is an error, although Black's position was already much worse.

[ Better was: 24...Be6; but now 25.Bd4! "Plus-over-a-line." (+1.09 - Fritz.) ]

25.Bd4!! Nxd5; (Forced?)
I originally thought this to be an error, but computer analysis will demonstrate that many of the alternatives are worse.

[ Worse was: 25...exd4?!; 26.Rxf4 Bf5[];
Huge threats to f7 (and g6), so there is no time to save the button on d4.

<(But not 26...dxc3??; 27.Qxg6+! Kf8; 28.Rxf7+ Qxf7; 29.Qxf7#.)>

27.cxd4 Re8; ('!?') (Box?)
This walks into a zinger, but is the first choice of Fritz ... many of the alternatives are truly too horrible for human eyes to see.

<(Even worse would be: 27...Kf8?; 28.Qg5 Rac8!?; 29.Qh6+ Kg8; 30.Rh4, with mate to follow.)>

28.Rxe8+ Rxe8; 29.Rxf5! Qxg3; 30.Bxf7+ Kg7; 31.hxg3 Re7; 32.Rf3 (White is winning.) ]

26.Rxe5!,
Even better than taking with the Bishop.

[ 26.Bxe5 Qxc5+; 27.Bd4 Qxc4; 28.Qh4 f6; 29.Rxf6!, (This was the line I worked out to a win, Fritz confirms an overwhelming advantage for White, here.) ]

26...Nxc3!?; ('?')
Suicidal, White's advantage (in points) now doubles. (Of course, Black could also resign here, as no move was going to save the second player's game.)

[ Better was: 26...Ne7[]; but then 27.Rh5! is winning ( ) for White. ]

27.Bxc3, Black Resigns, 1-0

Nov-18-05  alexandrovm: I looked at the solution, such a beautiful game!
Nov-18-05  Guest1825: .

Dear Chessgames:

Will you consider adding a thick border around the puzzle-of-the-day .jpg? The Microsoft windows option panel pops up right along the 8th rank and covers up the a-c squares each time a guesser crosses the image with the mouse cursor. Thank you for your consideration, CHESSGAMES!

Sincerely,
Guest1825

.

Nov-18-05  FORTRAN 77: I was thinking Rxe5 but missed the fork on e2
Nov-18-05  Halldor: I found 25.♖xe5 ♕xe5 and then because of the threat ♘e2 I wanted to play 26.♕h4, threatening ♗d4 and ♕h8, also attacking ♖d8, but at closer look I saw that Black can easily safe himself.
Nov-18-05  DanRoss53: <FORTRAN 77> Same here. I was thinking 25. ♖xe5! ♕xe5 26. ♗d4!, but it's more like 25. ♖xe5?? ♕xe5 ♗d4??
Nov-18-05  YouRang: Like others here, I "guessed" that 25. Bd4 was the winner. I just looked strong, opening up the f rook, controlling the main diagonal, and creating a pin against the unprotected black queen.

But I couldn't find any clarity after that -- there seemed to be too many possibilities for my head to manage. :(

The main thing I missed was how to make use of the rooks (esp. Rxe5, with mate threat & discovered attack on queen after Rh5!).

Nov-18-05  midknightblue: (lifemasterAJ) thx for the analysis
Nov-18-05
Premium Chessgames Member
  kevin86: I had to sit back and enjoy this one:A victory for long range pieces. The rook on e5 is lethal-threatening to expose the enemy queen and the long diagonal. Black is caught like a cat trying to catch two mice at once.(or is that two Mieses?)
Nov-18-05  Lewdog: ...A puzzle within a puzzle. White's Advantage at this point: No black move can defend the threat of both 28 e8 (capturing the unprotected Q) and h5, again, threatening the Q and mate at h8...
Nov-18-05  TTLump: For black, either
25 ... exd4, etc.
OR
26 ... Ne7
26 Rh5 Rxd4

is still a losing position for Black, he gets two pieces for his queen and there is no quick forced mate from either of these positions that I can see ??

Nov-18-05  LIFE Master AJ: <TTLump>
If Black is willing to give up the Queen - he may be able to avoid mate. After 26...Ne7; 26.Rh5!, Rxd4; (White was threatening Rh8#.) 27.Qxc7, Fritz shows that White is way ahead (around six points) but there is no immediate (forced) mate in sight.

Nov-18-05  TTLump: The more I look at this position, the more I like:
26 Bxe5 ... instead of 26 Rxe5
here is a line I played against CM7000

26 Bxe5 QxC5+
27 Bd4 Qxc4?
28 Qh4! Qxd4
(the queen sac seems necessary to prevent mate)

Nov-18-05
Premium Chessgames Member
  Richard Taylor: I found this move - it took me while as tryng to see if I could play 25. Q:f4 or 25. R:e5 but those moves fizzle out - the problem for me after 25. Bd4 also - was to find a good reply for Black he looked so completely lost
Nov-21-05
Premium Chessgames Member
  patzer2: The recent puzzle solution 25. Bd4!neatly combines the clearance, pinning and deflection themes for a decisive result:

<25. Bd4! Nxd5>

25... exd4 26. Rxf4
dxc3 (26... Bf5 27. cxd4 Re8 28. Rxe8+ Rxe8 29. Rxf5 Qxg3 30. Bxf7+ Kg7 31. hxg3 Rf8 32. Bxg6 ) 27. Qxg6+ Kf8 28. Rxf7+ Qxf7 29. Qxf7#

25... Ne6 26. Rxe5

25... a6 26. Rxf4 exf4 27. Qxg6+ Kf8 28. Qg7#

<26. Rxe5! Nxc3>

26... Ne7 27.
Rh5

26... Bf5 27. Rfxf5

26... Be6 27. cxd5 Rxd5 28. Rh5

<27. Bxc3 1-0>

Nov-21-05
Premium Chessgames Member
  patzer2: In the final position, after 27. Bxc3 Rf8 28. Rh5! , White's discovered attack wins the Queen or mates.


click for larger view

(Position after 27. Bxc3 Rf8 28. Rh5! )

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