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Omar Almeida Quintana vs Pablo Zarnicki
Capablanca Mem Premier II (2002), Havana CUB, rd 7
Queen's Indian Defense: Fianchetto. Nimzowitsch Variation Nimzowitsch Attack (E15)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 3 OF 3 ·  Later Kibitzing>
Nov-26-10  knight knight: Ah, 20. Nf5, similar to 20. Nxe6 but better it seems. Not turning out to be a good week for me!
Nov-26-10  SufferingBruin: In blitz, I would have played Nxe6. In standard play, I would have looked at the board in a daze and daydreamed for a few minutes before playing some innocuous move that doubtless would have resulted in bloodshed or lost territory or both.
Nov-26-10  SufferingBruin: <This was an extremely well-played match.>

This.

Nov-26-10
Premium Chessgames Member
  patzer2: I'm not convinced 20. Nxe6?! offers White much more than a speculative blitz opportunity.

After 20. Nxe6?! fxe6 21. Qg6 Nhf6 22. Bxh6 Bf4 (not 22...Rxe6?? 23. Ne5! Qg5 24. Bxe6 ) 23. Bf4 Re8 or , Black has the advantage with winning chances.

Nov-26-10
Premium Chessgames Member
  NM JRousselle: I really like this puzzle. It has lots of good points.

1 - A tactical shot
2 - Clearance (e pawn from guarding d5)
3 - Fork
4 - Unprotected piece theme

All of this leads to a clearly won ending with an extra pawn. Black's demise was not immediate, just certain.

Nov-26-10
Premium Chessgames Member
  Once: <David2009> <Once:[snip] Nul points for royaume uni today> Eh?>

Bonjour, Paris, here are the votes from the Swedish jury:

Ireland, trois points.

Greece, quatre points

...

Norwege, douze points

And always, always, royaume uni (United Kingdom) nul points.

In other words, intended as a reference to the Eurovision song contest, also known as "X-factor with diplomatic allegiances" or "Has Europe got talent (and can remember who fought with us in the last war)"

Nov-26-10  Patriot: <patzer2> <After 20. Nxe6?! fxe6 21. Qg6 Nhf6 22. Bxh6 Bf4 (not 22...Rxe6?? 23. Ne5! Qg5 24. Bxe6 ) 23. Bf4 Re8 or , Black has the advantage with winning chances.>

I don't understand your line. I assume you meant 22.Bxh6 Bf8 but in parenthesis did you mean "not 22.Rxd6?? Ne5! ..."? Because after 22.Rxd6 just 22...Bxd6 seems straightforward enough. But then again I could be missing something because I've been in bad form this week.

Nov-26-10  knight knight: <Patriot> 23. Qxg7#

I should've remembered the saying "When you've found a losing move, look for a winning one..." (20. Nxe6 vs 20. Nf5)

Nov-26-10  knight knight: Wait a minute, something's not right with <patzer2>'s moves. I meant after 23...Bxd6?? 24. Qxg7#. I'm confused!
Nov-26-10  Patriot: <<knight knight>: <Patriot> 23. Qxg7#>

I think there's a lot of confusion. With the line I was referring to (from my understanding of <patzer2>'s line), Bxh6 never got played so Qxg7# is not possible.

Nov-26-10  tacticalmonster: 1) Black threatens to tear open the c-file and win a pawn with bxc4. White can't play cxb5 because the c3 knight is pinned

2) The h5 knight is out of play and it has only the f6 square to retreat to

3) White has doubled up rooks along the d-file and staring down the weak d6 pawn

4) The d7 knight is potentially a target along the d-file

Candidate: 20 Ndxb5

20 Ndxb5 axb5 21 Nxb5 Qb8 22 Nxd6

a) 22...Bxd6 23 Rxd6 Nf8 24 Rxd8 Rxd8 25 Rxd8 Qxd8 26 c5- Black's knights are no match for White's queenside connected passers because they are far away on the kingside

b) 22...Rc7 23 Nb5 Rb7 24 Qc3 Nhf6- Black is in some sort of bind

Nov-26-10
Premium Chessgames Member
  patzer2: <Patriot>, I failed to record part of the speculative 20. Nxe6?! line analysis. Thanks for the catch!

After 20. Nxe6?! fxe6 21. Qg6 Nhf6 22.Bxh6 Bf8 23. Bf4(not 23. Rxd6?? Ne5! 24. Qg5 Bxd6 ) 23...Re8 24. Bxd6 Bxd6 25. Rxd6 to , Black has a strong and likely winning advantage.

Play might continue 25...Ne5 26. Qb1 bxc4 27. b4 Nf7 28. Rxa6 Nd5 29. Rc1 Qe5 30. Qb2 Ra8 31. Rc6 Qd4 32. Kh1 Ne5 33. Rc5 Rab8 34. Qa1 Qe3! (-2.57 @ 19 depth per Fritz 10).

Nov-26-10  YCP: After exf5, Nd5 followed by Nxe7+ and Nxc8
Nov-26-10  WhiteRook48: i have missed it
Nov-26-10
Premium Chessgames Member
  agb2002: The material is even.

Black threatens 20... bxc4.

At first glance, there are several options: 20.Bxh6, 20.Nf5, 20.Nxe6, 20.Ndxb5.

The first move, 20.Bxh6 gxh6 21.Nxe6 fxe6 22.Qg6+ Ng7 23.Rd4 Nf6 24.Ne4 Nxe4 25.Rxe4 Bf8 seems to lead nowhere.

The second, 20.Nf5 Bf8 (20... exf5 21.Nd5 followed by 22.Nxe7+ and 23.Nxc8 + -) 21.Nxd6 Bxd6 (21... Rb8 22.cxb5 + -) 22.Rxd6 bxc4 23.bxc4 Nhf6 (23... Qxc4 24.Rxd7 Rxd7 25.Rxd7 Qxc3 26.Rd8+ Rxd8 27.Qxc3 + -) 24.Ne4 Nxe4 (24... Qxc4 25.Nxf6+ + -) 25.Qxe4 Nf6 (25... Qxc4 26.Qxc4 Rxc4 27.Rxd7 + -) 26.Rxd8+ Rxd8 27.Rxd8+ Qxd8 28.Qd3 + /-.

The third, 20.Nxe6 fxe6 21.Qg6 Nhf6 (21... Ndf6 22.g4 recovers the piece) 22.Bxh6 Bf8 23.Rxd6, threatening Rxe6 and cxb5, looks interesting.

The fourth, 20.Ndxb5 axb5 21.Nxb5 Qb8 22.Nxd6 Bxd6 23.Rxd6 Nf8 24.Rxd8 Rxd8 25.Rxd8 Qxd8 26.c5 leaves White with three united passed pawns for the piece.

I don't know. I probably would try the fourth option.

Nov-26-10
Premium Chessgames Member
  benveniste: No points for me. I spent too long figuring out ♘xe6 didn't work and went with ♘d4xb5.
Nov-26-10
Premium Chessgames Member
  patzer2: <agb2002><The third, 20.Nxe6 fxe6 21.Qg6 Nhf6 (21... Ndf6 22.g4 recovers the piece) 22.Bxh6 Bf8 23.Rxd6, threatening Rxe6 and cxb5, looks interesting.> White is busted in this line after 23...Ne5! .
Nov-26-10  wals: I picked the right Knight to move but it wasn't my day to make the right move.

Rybka 4 x 64

depth: 19 : 6 min :
Black blunder
(+1.55):19...b5. Best, Ne5, =0.00.
Re8, =0.14.

1. = (0.00): 19...Ne5 20.Qc1 Qb7 21.h3 Nf6 22.Rc2 d5 23.cxd5 Rxc3 24.Rxc3 Nxd5 25.Rc2 Ba3 26.Qd2 Bb4 27.Qc1 Ba3 28.Qd2 Bb4 29.Qc1 Ba3 30.Qd2 Bb4 31.Qc1 Ba3 32.Qd2 Bb4 33.Qc1 Ba3 34.Qd2 Bb4

2. = (0.14): 19...Re8 20.Qc1 Qb7 21.Bf2 Nhf6 22.Rc2 Ng4 23.e4 Nxf2 24.Rxf2 Bf6 25.Rfd2 Nc5 26.Qc2 Bg5 27.f4 Be7 28.Re1 Qc7 29.Rh1 Bf6 30.Rhd1 Red8 31.a3 Re8 32.b4 Nd7

depth: 22 : 7 min :
Black error
(+2.15):25...e5. Best, Re7, +1.40.

depth: 23 : 17 min :
Black error
(+2.91):26...Re6. Best, Re7, +2.15.

depth: 20 : 4 min :
White error
(+2.15):27.Rxe6. Best, Rxd6, +2.91.

depth: 21 : 6 min :
White error
(+1.15):29.Qd2. Best, Bxh6, +1.87.

depth: 25 : 6 min :
Black blunder
(+2.75):54...Kg8. Best, Qe5, +1.91.

depth: 23 : 4 min :
Black blunder
(+5.06):58...Kg8. Best, Qg6, +3.20.

depth: 22 : 4 min :
Black blunder
(+10.20):59...Qa3. Best, Ne4, +5.06.

depth: 20 : 4 min :
White error
(+6.29):60.Qe6+. Best, Qd5+, +10.20.

depth: 22 : 6 min :
Black blunder
(+#12):60...Kh7. Best, Kf8, +6.79.

Black threw in the towel move 61.

Nov-26-10  rilkefan: What does Rybka think of 20.Nxb5 instead of Nf5?
Nov-26-10  wals: <rilkefan...not much>

Analysis by Rybka 4 x64: d 15 : 7 min

1. (1.50): 20.Nf5 Bf8 21.Nxd6 Bxd6 22.Rxd6 bxc4 23.b4 Nhf6 24.Rxa6 Qb7 25.b5 Nd5 26.Nxd5 exd5 27.Rd6 Re8 28.Bd4 Re6 29.Rxe6 fxe6 30.Qb2 Qc7 31.b6 Qb7 32.a4 c3 33.Qb4 c2 34.Qe7 Nc5 35.Qxb7

2. (0.38): 20.Ncxb5 axb5 21.Nxb5 Qb8 22.Nxd6 Bxd6 23.Rxd6 Nhf6 24.Bf4 e5 25.Be3 Qb7 26.Qd2 e4 27.Bf2 Rc6 28.Rxc6 Qxc6 29.Qd6 Qb7 30.c5 Qb5 31.Qd2 exf3+

Nov-26-10  rilkefan: <wals> Ok, thanks. It's better anyway than my Nxe6...
Nov-26-10  James Bowman: Sorry cutting back on the peyote this was absurd after 20 moves none of which were forced it was roughly even? It's really not a puzzle unless at the end of the day there is a clear cut advantage, idea, concept, or tactic etc... not dependent on an atronomical number of possible moves. I guess Monday- Thursday is more my level. Alright I'm done now rant over ;o]

Oh ya I didn't get it and I still don't. Who is going to calculate all these lines during a real game? That was bonus rant for no extra charge.

No no go home it's really over.

Nov-26-10  Rookheight: It took me a while to see that 20...Nf8 allows 21.Bb6! winning the exchange by deflecting the queen off of e7, and skewering the Q+R if the bishop is not taken.
Nov-27-10  LIFE Master AJ: 20.Nf5!?
Nov-27-10  LIFE Master AJ: I looked at this one for quite some time ... don't think I ever posted though.
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