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Alexsander A Shashin vs Viktor Korchnoi
"Music and Shashin were Always the Fashion" (game of the day Aug-19-2009)
Leningrad Championship (1973), Leningrad URS, Feb-??
Nimzo-Indian Defense: Normal Variation. Gligoric System Bernstein Defense (E56)  ·  1-0

8
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a
1
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g
h
White to move.
ANALYSIS [x]
1-0

rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Aug-19-09  YetAnotherAmateur: <estrick> I think you'd do better with a move that's actually legal, like 36. Rxb7+
Aug-19-09  WhiteRook48: or even 36 Rxg7+?!?!
Aug-19-09  whiteshark: Shashin said it's his best game. <Probably, the best game of a chess player is his best business card> You'll find his annotations here: http://www.gmchess.com/gmschool/tea...
Aug-19-09
Premium Chessgames Member
  Annie K.: Alright, who's responsible for this pun?!

Inquiring minds want to know. :p

Aug-19-09  Dr. J: <al wazir> <leow> 22 ... Ne6 loses to 23 Bxe6 fxe6 24 Rxg7+
Aug-20-09  Manic: <Dr. J> Black can play 23...Rd1+ 24.Kh2 Qd6+ picking up the rook.

Can't see anything that good for white here. White is going to have to worry about this trick and the dangerous position of his rook.

Aug-20-09  YetAnotherAmateur: <WhiteRook48>36. Rxg7+ is legal, but allows white to end up with a marauding queen after 36. ... Kf8 37. Rg8+ Ke7 ...

Whereas after 36. Rxb7+, the queen must be sacrificed to prevent Rb8#. 36. Rf2+ also works, but costs white his bishop.

Aug-28-10  sevenseaman: <screwdriver> valid analysis. White is forced to capture N with the Q. If not 27. Kh2 Nfi+ 28. Kg2, N5e3+ with the same dilemma or the N goes to d5 to cut out the B on a2. Either way Korchnoi wins.
Oct-25-10  sevenseaman: The game is like a tightrope balance. 25. g3? 25. Qe5 keeps things simpler; all ccntinuations favor White.
May-29-11  RWood: Coming in rather late - better than never! I saw this game analysed by the late Attila Schneider in the BCM December 1988 magazine. He also quotes the "better try" as per aulero above - 29... ♖e1+ 30.♔d5! and continues to the checkmate conclusion above. However, it immediately occurred to me at the time that instead of 30... ♘e3+ Black has the much better 30... ♘f6+!?. The last time I checked on Fritz (some while back now), this was not a clear win for White, if indeed a win at all! If this is not a win for White, then 24...♕d6+ is not a fatal error at all!

Comments?

Feb-28-14
Premium Chessgames Member
  LIFE Master AJ: This should have been the GOTD years ago ...
Feb-28-14
Premium Chessgames Member
  LIFE Master AJ: http://www.angelfire.com/games3/lif...

My web page on this game.

Mar-31-14  Granny O Doul: In a book, yeah, I think it was Soltis's "Chess to Enjoy".
Jan-20-15  RWood: @screwdriver: 26..S(g4)e3+ loses to 27.Kf3, followed by Ke4. Fritz has this as hopelessly lost for Black.
Apr-07-16  ToTheDeath: Quite a little masterpiece.
May-19-16
Premium Chessgames Member
  offramp: Kortschnoi analysed this game, which is unusual for him, to analyse one of his losses. Here is one line he gave.


click for larger view

In the game, Kortschnoi played 29...Qe2+.
He says that he should have played:
29... Re1+


click for larger view

And after 30. Kd5 the following might have happened: 30...Ne3+ 31. Kd6 Nc4+


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32.Qxc4 Rd1+ 33.Kc7 Qb6+ 34. Kb8 Rd8+


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35. Qc8 Qd6+ 36. Rc7+ Check! At last!


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36...Kf8 37. Bxg7+ Ke8 38. Bf7#


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Would you ever believe that that final position could be reached through normal play?

Feb-19-25
Premium Chessgames Member
  Korora: 34.♕g5 and it's lights out regardless of whether Black takes the ♕ or not.
Feb-19-25
Premium Chessgames Member
  takebackok: Think it's forced Wednesday, white has all kinds of threats even after blocking the ck with 34. Qg5 Rxg5+ (what else the rook is hanging almost any other move allows the white rook to move with ck) 36. hxg5 now it's gg.
Feb-19-25  saturn2: 34.Qg5
If black takes Rxg5 or hxg5 white blocks further queen checks with the Rf7 and the Ba2 gives a discovered check.
Feb-19-25
Premium Chessgames Member
  Teyss: An original puzzle. Two ways to solve it:
1. By default seeing 34.Kf5 leads to perpetual.
2. Realising the threats on the BK are stronger than material.
34...hxg5? 35.Rf2+ (or other) Kh8 36.Rf8# or Bxg7#
34...Rxg5+ 35.hxg5 and Black is stuck e.g. Qxb2 36. Rxb7+
Feb-19-25  TheaN: Always something odd with a defensive puzzle, given that it limits the options. I do like them as it broadens your perspective in terms of both attack and defense. 34.Kf5 looks like inviting trouble, and given there are four more pieces (including the king) aiming at the Black king, White can afford <34.Qg5!> (debatable whether ! is justified as it's kind of the only logical move).

Black has no solace in not taking the queen. The triple threats of Rxg7+, Rf5+ and Qxg1 (Qe8) prove too much, sample lines: 34....Qxb2 35.Rxg7+ (Rxb7+ wins too) Kf8 36.Rg8#, 34....Qe4+ 35.Rf5+ Kh8 36.Bxg7#, 34....Qe8 35.Qxg1 +-. So <34....Rxg5+ 35.hxg5>:


click for larger view

Problem for Black, neither the White queen nor Black rook played a pivotal point in these lines, except for the queen covering e7 in the double check line. So now after 35....Qxb2, 36.Rxb7+ wins rather than Rxg7+, as after 36....Qxa2 37.Rb8# and else RxQ. All the other lines remain intact except for Qxg1 obviously, so after <35....Qe8> pinning the rook <36.gxh6> threatening h7+ with Bxg7# <36....gxh6 37.Kxh6 +->:


click for larger view

There's something almost comically ironic about the White king sidestepping the pin as final move: the rook is going to move, and regardless of what Black does this either goes at the expense of the queen or king. Beautiful combination.

Feb-19-25
Premium Chessgames Member
  chrisowen: I q mow its spy its net dj foul Qg5 god its a bit lip ai its ghoul ea its ha its cc ia its doh its axiom juggle its a dip nip Qg5 bid x
Feb-19-25  mel gibson: A bit tricky!

Stockfish 17 says mate in 12.

34. Qg5

(34. Qg5 (1.Qg5 Rxg5+ 2.hxg5 Qe8 3.Bxg7 hxg5 4.a4 b6 5.Bd5 a6 6.Bd4 b5 7.a5 b4 8.Bb3 g4 9.hxg4 Qc6+ 10.Rf6+ Qe6 11.Bxe6+ Kh8 12.Rf8+) +M12/80 57)

White wins _ mate in 12.

Feb-19-25  TheaN: <mel gibson: A bit tricky!

Stockfish 17 says mate in 12.

34. Qg5

(34. Qg5 (1.Qg5 Rxg5+ 2.hxg5 Qe8 3.Bxg7 hxg5 4.a4 b6 5.Bd5 a6 6.Bd4 b5 7.a5 b4 8.Bb3 g4 9.hxg4 Qc6+ 10.Rf6+ Qe6 11.Bxe6+ Kh8 12.Rf8+) +M12/80 57)

White wins _ mate in 12.>

Not sure if anyone realizes how computer-ruthless this line is. After 34.Qg5 Rxg5+ 35.hxg5 Qe8, I spotted the practical 36.gxh6 gxh6 37.Kxh6, given 37....Qxf7 38.Bxf7+ Kxf7 39.h4 +- is winning. SF just goes "nah, you're stuck": 36.Bxg7! hxg5 37.a4:


click for larger view

*snort* "your move, you don't have any, gl!". And indeed, that's mate eventually because Black's essentially in zugzwang, it's a matter of stopping the pawns so Black will <have> to move the queen which he pretty much can't. 37....b6 38.Bd5 a6 39.Bd4, threatens Bxb6 so Black can't start with a5 followed by b5 and now the blockades and captures begin: 39....b5 40.a5, the a-pawn, 40....b4 41.Bb3, the b-pawn, 41....g4 42.hxg4 and finally the g-pawn:


click for larger view

Queen move and #3 is forced. By blocking the b-pawn SF also prevents stalemate after 42....Qe6+ 43.Bxe6, longest line is as posted, 42....Qc6+ 43.Rf6+ Qe6 44.Bxe6+ Kh8 45.Rf8# (anywhere but f7 really).

Feb-20-25  King.Arthur.Brazil: Seeing the scenery, the king looks to B player: Kortchnoi, my brains stated "it only could be!" In lack of other movees, maybe, many will found the 34. Qg5! (when hxg5 35. Rf2+ Kh8 36. Bxg7#), Rxg5+ 35. hxg5 (Qa6+ 36. Rf6+) then Qe8.

Now, W has two moves to chose:
a)gxh6 (b5 37. h7+ Kh8 38. Bxg7#) gxh6 37. Kxh6 and B must give the ♕ by ♖+♗ with lost endgame. (e.g. Qc6+ 38. Rf6+ Kh8 39. Rg6+ and mate next)

b) 36. Bxg7 hxg5 37. Kh6 Qe2 38. Rf8# or Qd8 38. Rf8#. It seems also no defense. Monday again? LOL

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