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Marcelino Sion Castro vs Alexey Vyzmanavin
Leon (1993), Leon ESP, May-??
Sicilian Defense: Kan. Knight Variation (B43)  ·  0-1

ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-26-16  BOSTER: White'd play 30.Qxa6 Rxa6 31.Bxa6 and game is equal.
Oct-26-16  Marmot PFL: Not so sure I would resign this as white.
Oct-26-16  patzer2: <BOSTER: White'd play 30.Qxa6 Rxa6 31.Bxa6 and game is equal.> In which case, 30. Nb5?, allowing 30...Qh6 to , is a mistake.
Oct-26-16
Premium Chessgames Member
  gawain: It was easy to find the game continuation--it was the only forcing sequence--but I was sure there must be something else. The game just did not feel securely won for Black.
Oct-26-16  vasja: To me Qg5 was good enough!
Oct-26-16  kevin86: Black to mate soon.
Oct-26-16
Premium Chessgames Member
  Jimfromprovidence: I like the continuation 34...Qb1+ 35 Kd2 Bxb5 a little better than the text.


click for larger view

Here the king on the d file (instead of the e file) blocks the queen from assisting with black checks on the first and second ranks if 36 Qd8+ Ne8 follows.

Oct-26-16  RandomVisitor: as <patzer2> suggests, white slipped with 28.Qb6. Better was 28.Qc7, when the sequence 28...Ra1+ 29.Bf1 Ba6 is better met with 30.c4.


click for larger view

Komodo-10.1-64bit:

<+0.69/36 28.Qc7> Ne4 29.Bf1 f5 30.Qxg7+ Kxg7 31.Rd3 Kf6 32.f3 Nc5 33.Rd2 Ra1 34.Kf2 f4 35.b4 Na4 36.Nb3 Rb1 37.Na5 Nxc3 38.Nxb7 Nd1+ 39.Kg1 Ne3 40.Rf2 Rxb4 41.Nd6 Rb1 42.Ne4+ Ke5 43.Nd2 Ra1 44.h4 Rd1 45.Re2 Kd4 46.g4 h5 47.g5 Kd3 48.Rf2+ Kd4 49.Nb3+ Ke5 50.Nc5 Kd6 51.Ne4+ Kc7 52.Nc3 Rc1

Oct-26-16  dhotts: Pinkerton is right, why did white resign? 35.Qd8+ Ne8 36.Qd1, and White seems to hold nicely....Am I missing something obvious?
Oct-26-16  patzer2: <RV> Thanks for the deep 36 depth Komodo analysis of 28. Qc7 to .

Looks like 28. Qb6 was weaker.

Oct-26-16  RandomVisitor: <dhotts>35.Qd8+ Ne8 36.Qd1 and the machine thinks that white's exposed king position cannot hold without giving up the exchange in the future, when black is able to secure his king and bring all 3 pieces to bear on the white king, for example:


click for larger view

Komodo-10.1-64bit:

-4.93/36 36...h6 37.g3 Nf6 38.Qd8+ Kh7 39.Qd2 Qb1+ 40.Qd1 Qe4+ 41.Re3 Qc4 42.Qe2 Qd5 43.Qd1 Qa2 44.Qd2 Qa8 45.Qd1 Nd5 46.Rd3 Bxd3 47.Qxd3 Qa5 48.Kd2 Qa7 49.Ke2 Qc5 50.c4 Nb6 51.Kf1 Nxc4 52.Kg1 Kg7 53.Qd1 e5 54.Kg2 Qd4 55.Qe2 Nd2 56.Qe3 Qd5+ 57.f3 Nc4 58.Qf2 Qd4 59.Qxd4 exd4

Oct-26-16
Premium Chessgames Member
  scormus: <sally> you are being so negative when you <paint it black> and white is deeply hurt <as tears go by> because he wished his dream of winning would <not fade away>
Oct-26-16
Premium Chessgames Member
  scormus: <gawain> I see what you mean. I think you are well qualified to make the remark about <.... not feel securely won for black>. Rather like when you chop off his head and find he still has life in him.
Oct-26-16  cormier: ths <R V> ...
Oct-26-16  Thirups: Chess is so brutal..!yesterday I played a match with completely winning position..but single blunder would change the game...how to avoid making bluders...anyone pls suggest me
Oct-26-16  wooden nickel: Other moves are also interesting i.e. 31... Kg7 ("gimme shelter") and White has Rxf6. Also the idea 31... Qg5, White might just play c4. Now lets try some knight moves like 31... Nd7 then 32.Qd8+ spoils things. 31... Nd5 is a little better but not enough. Now 31... Ne4! If 32.Qd8+, then simply 32... Qd8!


click for larger view

Oct-26-16
Premium Chessgames Member
  Sally Simpson: Hi scormus,

I now feel <Exiled on Main Steet.>

Tomorrow notes by The Beatles and Pawn McCartney.

Oct-26-16
Premium Chessgames Member
  doubledrooks: <Thirups> wrote: <Chess is so brutal..!yesterday I played a match with completely winning position..but single blunder would change the game...how to avoid making bluders...anyone pls suggest me.>

My suggestion is to make sure you look for possible threats from your opponent (unless you're delivering mate, of course).

Oct-26-16  Cheapo by the Dozen: My main line was

31 ... Nd5
32 Qd8+ Kg7
33 Qd7 Rxf1+
34 Kxf1 Qc1+
35 Ke2 Qxb2+
36 Ke1 Qb1+

and at this point I incorrectly thought White had to put his king on e2 and allow the fork at b5.

The first point of 31 ... Nd5 was to avert Qd8+/Qxf6. It gives a tempo to get a tempo back, but the second point was that White has to position his queen to

-- Survive
-- Threaten mate or a reasonable facsimile
-- Protect b5 (or c4)

and doing all that leaves the queen open to the fork.

But unless I'm missing something now Black has nothing better in that line than a draw.

Oct-26-16
Premium Chessgames Member
  Sally Simpson: "Chess is so brutal..!yesterday I played a match with completely winning position..but single blunder would change the game...how to avoid making bluders...anyone pls suggest me."

Thirups.

---

If anyone (including Carlsen) knew the correct answer to that and nobody ever blundered again then chess would become very boring.

Keep making the blunders and feel the burn. Over time you should stop making the same type of blunder twice.

Your opponent must have blundered somewhere for you to get a won game so try not to be the last player to blunder.

There is no cure.

Oct-26-16  MaczynskiPratten: Very interesting. I didn't find the game line fully convincing, with just two minor pieces for a rook. Instead I was looking at 32..Qc1, with the aim of mating on f1 but White gets there first with Qd8+ and Qxf6+. Then I looked at 32..Qd2, which stops Qd8+ and threatens Rf1+ and Qd1#. It also threatens Qd1. White has various moves like Qb8+ or g3 but they all seemed to fail to some combination of moves like Rf1+, Qd1 and Bxb5. Am I missing something? Can anyone, or their silicon friends, find a defence for White against 32..Qd2?
Oct-26-16  RandomVisitor: At the final position, Komodo can achieve nothing substantial


click for larger view

Komodo-10.1-64bit:

<-4.21/42 35.Qd8+ Ne8 36.Re3 Qa1+ 37.Qd1 Qa8> 38.Re5 Nc7 39.Rc5 Qe4+ 40.Kd2 Qxg2 41.Kc1 Qxf2 42.Qd4 Qe1+ 43.Kb2 Ne8 44.h4 h6 45.Rc8 Kh7 46.Qf4 Kg7 47.Qd4+ Nf6 48.Rd8 e5 49.Qd6 Be8 50.Qb4 Qe3 51.Qd6 Qg1 52.Qb4 Qe1 53.Qc5 Qe2+ 54.Ka3 Qe4 55.Qb4 Qe3 56.Kb2 Qe2+ 57.Ka3 Qf2 58.Kb3 Qf1 59.Kb2 Qf3 60.Qc5 Qf4 61.Kb3 Qe4

Oct-27-16  kevin86: Black will mate soon!
Oct-28-16  Thirups: @sally Simpson thank you friend
Oct-31-16
Premium Chessgames Member
  Dionysius1: For me that's what's so great about chess, and to a certain extent it proves to me there is a (chess) God. There's an objective truth, and none of us has access to it all the time. We're a community - from Magnus down to me - each trying to understand and get it right. I get the same feeling watching a good tennis match or reading a good poem, But golly I enjoy chess more than any other game. It's why I learnt to sing properly - not, despite my teacher's annoyance, so I could try to be a great singer - but so I could really appreciate how good other singers are, and maybe what the truth about singing is. Ditto chess.
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