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Ljubomir Ljubojevic vs Viswanathan Anand
Buenos Aires Sicilian (1994), Buenos Aires ARG, rd 1, Oct-12
Sicilian Defense: Fischer-Sozin Attack. Main Line (B89)  ·  0-1
ANALYSIS [x]

FEN COPIED

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sac: 31...Rxd4 PGN: download | view | print Help: general | java-troubleshooting

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 4 OF 4 ·  Later Kibitzing>
Jun-11-09  Archerforthelord: must say so far ive enjoyed the missed combinations this week, feels good to succeed where others have failed.
Jun-11-09  sexylady: After 31. Bd5 Rxd5:

32. Re6!! is better than 32. Qxd5, do you all agree?

Jun-11-09  anupam.mukherjee: Awesome. My first Thursday puzzle. At first I thought that the correct answer was Qg5 which was quite disheartening and then I saw the 0-1 result. Yay!
Jun-11-09  Yodaman: The first thing I saw immediately was the threat of Rxh6. Because of the bishop pinning the g7 pawn it would be mate except for the queen on the 6th rank. So how to stop the queen? Easy, attack it. I saw Bd5 immediately after and saw that the queen couldn't take it due to the threat of Rxh6 and if the rook took the bishop then my queen could freely take it. It looked like a big advantage after that first initial bishop move.
Jun-11-09  JG27Pyth: Really odd for Ljubojevic to miss this... as You Rang and others have pointed out... the combination isn't too tough to spot once you've got the threats and counter-threats firmly in mind... and presumably Ljubojevic was well aware that the black Queen was the only piece defending the h-pawn from Rxh6# -- So, knowing that, isn't it second nature to see if you can overload/deflect/interfere with the Queen? Perhaps time was a factor?
Jun-11-09  Patriot: <sexylady: After 31. Bd5 Rxd5:

32. Re6!! is better than 32. Qxd5, do you all agree?>

At first I thought it works but I became suspicious after <Jimfromprovidence>'s analysis and then another variation of my own above. I'll probably run this through Fritz later just to see if I missed anything. But even if it's a better line, I would settle for the much simpler 32.Qxd5.

Jun-11-09
Premium Chessgames Member
  Once: Ah yes, deflect the queen to allow Rxh6#. We also need to block Qxg2#, so 31. Bd5 practically plays itself.

I liked the positioning of the black king and rook on h8 and g8 respectively. Looks like black castled in haste and accidentally bumped both pieces one square further than he wanted.

Jun-11-09  cracknik: Bishop d5. Deflect the queen. Pretty easy.
Jun-11-09
Premium Chessgames Member
  Jimfromprovidence: <sexylady> <After 31. Bd5 Rxd5:

32. Re6!! is better than 32. Qxd5, do you all agree?>

32 Re6?! is a very clever move; but, no, it falls short in comparison to 32 Qxd5 because the mate threat after 32 Re6?! Rxd4 33 Rxc6 Bxc6 34 cxd4 Ra8! (threatening Ra1#) causes white to lose a rook and his advantage.


click for larger view

The position after 35 Rxh6+ gxh6 36 Qe5+ Kh7 looks about equal.


click for larger view

Jun-11-09  WhiteRook48: well 40 Qe3+ takes the black knight at the end.
I thought of 31 Rxh6+??? outright losing
Jun-11-09  killsthenight: 31. Bxd5 Rxd5
32. Qxd5! and now the point is that white wins the Bishop on b7 because the Queen cannot defend that and the pawn on h6 at the same time. For instance,

32. ... Qa6
33. Qxb7! and white is up a piece and an exchange.

Here the Re6 plan would fail because of Qa1+, winning the white queen after Bg1 .

The absolute correct move is 33. Qxb7 with an easy win.

Jun-11-09  killsthenight: The only other line I see that black can try is:

31. Bd5! Bc8?!
32. Bxc6 Rxd4
33. Rxh6+ gxh6
34. Qf6+ Kh7
35. Qxd4 Nb3
36. Qd3+ and white wins easily.

Jun-11-09
Premium Chessgames Member
  TheBish: Ljubojevic vs Anand, 1994

White to play (31.?) "Medium"

White would like to deflect the black queen's protection of h6 (Rxh6# is looming), while still avoiding his own demise (Qxg2#).

An interesting try is 31. Qg5? but this fails to 31...Rxd4! (but not 31...f6?? 32. Rxh6+ or 31...Nxb3?? 32. Rxh6+) 32. cxd4 Nxb3 and Black should ultimately win with two pieces for the rook.

Winning is 31. Bd5! which serves the dual purpose of deflecting the queen while preventing mate on g2. If 31...Qxd5 32. Rxh6 mate, or 31...Rxd5 32. Qxd5 and White has won an exchange. Also, 31...Bc8? 32. Qf4! and Black must give up the queen for starters to prevent mate.

Jun-11-09
Premium Chessgames Member
  SuperPatzer77: <al wazir> 31. Bd5!! Bc8?! 32. Re6!! - it is not my idea - actually Terry McCracken's.

I strongly agree with Terry McCracken's analysis of 31...Bc8?!, 32. Re6!!!. See below:

32...Qxe6 33. Qxe6!! Rge8, 34. Qxh6+ (seeing that the Black g-pawn is pinned by the White bishop at d4) Kg8, 35. Qxg7#! Just simple as that.

Instead of 33...Rge8, 33...f6, 34. Rxh6+! gxh6, 35. Qxf6+ Kh7, 36. Qf7+ Rg7, 37. Qxg7#

Instead of 33...f6, 33...Kh7, 34. Rxh6! gxh6, 35. Qxf7+ Rg7, 36. Qxg7#

SuperPatzer77

Jun-11-09
Premium Chessgames Member
  SuperPatzer77: <abg2002> Your analysis is incorrect - <D) 31... Rge8 32.Rxe8+

D.1) 32... Qxe8 33.Rxh6+ Kg8 34.Qh7+ Kf8 35.Qh8+ Ke7 36.Re3+ Kd7 37.Rxe8 Rxe8 38.Qxe8+ Kxd8 39.Bxb7 + -.>

After 31. Bd5! your analysis is 31...Rge8, 32. Rxe8+?? (White rook shouldn't have captured the Black rook at e8 - see below).

The correct move is 32. Bxg7+! Kxg7, 33. Qxf7+ Kh8, 34. Rxe8+ Rxe8 (34...Qxe8 35. Rxh6#), 35. Rxh6+! Qxh6, 36. Qxe8+ Kg7 (36...Kh7 37. Qg8#), 37. Qf7+ Kh8 38. Qg8#

SuperPatzer77

Jun-11-09  CHESSTTCAMPS: <SuperPatzer77> wrote <[snip] 31...Rge8, 32. Rxe8+?? [snip]>

Sorry, but 32.Rxe8+ is perfectly sound. However, there is an improvement in the D.1 line given by <agb2002>: 32... Qxe8 33.Rxh6+ Kg8 34.Qh7+ Kf8. Instead of 35.Qh8+?, simply 35.Bc5+ forces mate.

If instead 32... Rxe8, 33.Bxg7+ transposes to the line that you gave, but even the inferior 33.Bxc6 Re1+ 34.Bg1 leaves white with an easily won position.

In short, 32.Rxe8+ is just as good as Bxg7+. BTW, black can postpone mate a little longer in your line by playing 36... Qf8 instead of 36...Kg7.

Jun-11-09  krisxch: Hi.BD5 if RD5 then what's wrong with QD5 as the Queen is overloaded ok.
Jun-11-09  Poohblah: Due to the threat of 31. ... Qxg2#, a forcing move is needed, ideally a check.

candidates:

31. Rxh6+ Qxh6
Now the threat of Qxg2# is gone, so there are many possible lines. However, white is down a Rook and black threatens to quickly regain tempo.

31. Bxg7+ Rxg7 32. Rxh6+ Qxh6 and white is out of ideas.

31. Bd5 (deflecting the black Queen) Qxd5?? 32. Rxh6#

31. Bd5 Rxd5 32. Qf4 Rxd4 . damn. I feel close.

31. Bd5 Rxd5 32. Bxg7+ Rxg7 and again white is out of ideas.

31. Rg3 doesn't seem to do much.

and I am out of ideas. Let's see what others have to say.

Jun-11-09  Poohblah: 31. Qg5

d'oh!!

Jun-11-09  Poohblah: How did I not see

31. Bd5 Rxd5 32. Qxd5

jeez. That would explain a lot.

Jun-11-09  kolio: I looked at 31.Bd5 Rxd5 32.Re6

32.Re6 also should work for 31. ... Bc8

Jun-11-09  ku0826: at the end white's oueen recaptured ?
31. Bd5! Rd5
32. Re6 Rd4
33. Rc6 Bc6
34. cd4 Ra8
35. Kg8 Ra1+
36. Kf2 Rf8+!
Jun-12-09
Premium Chessgames Member
  FSR: <weev> Not typical, no. In most of the puzzles here, the person whose move you're asked to find actually played that move and won. Here he missed the winning move, played a losing move, and lost after further vicissitudes.
Jun-12-09
Premium Chessgames Member
  SuperPatzer77: <<ChessTTCamps> In short, 32.Rxe8+ is just as good as Bxg7+. BTW, black can postpone mate a little longer in your line by playing 36... Qf8 instead of 36...Kg7.>

36...Qf8, 37. Qxf8+ Kh7, 38. Bxb7 (White is winning because White is one queen up)

SuperPatzer77

Jun-14-09
Premium Chessgames Member
  SuperPatzer77: Addition to the answer to <ChessTTCamps>'s question below:

36...Qf8, 37. Qxf8+ Kh7, 38. Bxb7 (threatening to mate Black with Be4# if the Black knight moves away from d2) bxc3 39. Ba6! (threatening mate with 40. Bd3# or forcing Black to lose a knight) Kg6, 40. Bd3+ Kg5 (or 40...Kh5), 41. Qf5+ Kh4 (41...Kh6 42. Qg6#), 42. g3#

36. Bxb7 Kg6 (instead of 36...bxc3), 37. Qd6+ (winning the Black knight) ---> White wins too easily with a queen and a bishop up.

SuperPatzer77

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