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Evgeni Vasiukov vs Iuri Chikovani
9th Soviet Team-ch qual group 1 (1963), Moscow URS, rd 2, Aug-08
Sicilian Defense: Nezhmetdinov-Rossolimo Attack (B30)  ·  1-0
ANALYSIS [x]

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Oct-11-13
Premium Chessgames Member
  offramp: Black must been very disappointed with his play.
Oct-11-13  Abdel Irada: <offramp: Black must been very disappointed with his play.>

The iuri's still out on that question, but if he isn't, the rest of us can be disappointed for him.

Oct-11-13  Bartimaeus: Except for a minor piece exchange not much has happened in terms of bloodshed but in terms of war strategy plenty is afoot. Black seems to have the worst of it so far. With the Queen parked on the sidelines, most of the pieces still plonked on the first rank and a monster white d-pawn breaking the communication lines of the army, black seems to be up against it. In the light of this predicament, the kingside pawn attack seems quite adventuresome and shallow. There seem multiple candidates to punish it: e5, Bxg5 and Nxg5.

e5 can be met by Nd5 which not only enables the Black DSB to aid the defense via Bg5 but also prevents the crucial rook lift. Now it remains to decide on whether to sac the knight or the bishop. The knight sac appears marginally better as the White Knight isn't en prise if the black knight moves away and secondly it builds a tempo for the Queen move and the rook lift. Thus,

13. Nxg5 hxg5 14. Bxg5 Nh7 15. Be7 Re8 16. Qg4+ Kh8 17. Re3 Bxe7 (Rg8 Qh4) 18. dxe7 Rg8 (Rxe7 Rg3) 19. Qh5

and there's not much that black can do to protect against the mate threat coming from both the back rank and after Rh3. Good puzzle.

Oct-11-13
Premium Chessgames Member
  SuperPatzer77:


click for larger view

Black resigns in lieu of 19...Bg5, 20. Rxg5+! Nxg5, 21. Qh5! (threatening 22. Qh8#) Nh7 (forced), 22. Qg4+ Ng5 (forced), 23. Qxg5+ Kh7 24. Qg7# 1-0

SuperPatzer77

Oct-11-13  M.Hassan: "Difficult"
White to play 13.?
Equal
White can open the front of Black King and carry out an effective assault:

13.Nxg5 hxg5
14.Bxg5 e5
15.Re3 Nh7
16.Bxd8 Rxd8
17.Rg3+ Kf8
18.Qh5 Qxd6
19.Qxh7 b6
20.Nd5
And next move is mate on Qh8+ unless Black Queen sac herself 20...........Qxd5
21.exd5
1-0
Time to see how the game was played
===
Quite different but same principles of Knight sac and Rook lift. What was the idea of 14...Qa5 in the text game?

Oct-11-13  Patriot: I think I would play 13.Nxg5, so that on 13...hxg5 14.Bxg5 prepares to remove the defending knight while ripping away the kingside pawns. The rook is ready to lift to e3 and swing to g3 or h3, and the queen is ready to take part on that side as well. That's enough to "try it".
Oct-11-13  TimothyLucasJaeger: The point of 14... Qa5 was probably to try to get the black queen over to the queenside.

I.e. to be able to meet an eventual white Bxd8 (mostly likely following a black ...Nh7) with Qxd8 to vie for control of the g5 square.

Nice puzzle, although with the discoordination of the black side, this feels a bit like an 'anything wins scenario (before white's 13th)

Oct-11-13
Premium Chessgames Member
  FSR: How much analysis does one have to do? 13.Nxg5 hxg5 14.Bxg5 intending e5, possibly Bh6, moving the queen and possibly also the king rook to the g and/or h files. With his QB and QR shut out of play, and his queen on a6, Black is toast.
Oct-11-13  LoveThatJoker: <13. Nxg5 hxg5 14. Bxg5 e5>

(14...Nh7 15. Bxd8 Rxd8 16. Qg4+ Kf8 17. e5 )

<15. Bxf6 Bxf6 16. Re3>

The idea behind 16. Re3 is to keep the pawn on d6 protected while White creates his battery along the proper open file. I don't see Black having an adequate defense to this plan.

LTJ

Oct-11-13  King Sacrificer: The key to solve the puzzle is seeing <Bh6>. I felt like i'm obliged to place a pawn or a bishop on <f6> instead.
Oct-11-13  mistreaver: Friday. White to play. Difficult. 13?
The moment i saw this position i wanted to play the following: 13 Nxg5!
With black queen far away, and light squared bishop and rook locked up, this has to be correct: A) 13... hxg5
14 Bxg5 and now i don't see a move for black that can prevent Re3, Qg4, e5 and so froth and so forth say:
14... Qc4
15 e5 Nplays
16 Re4
etc.
B) 13... Kh7
14 Re3 is i think also winning.
Apparently, after any continuation white gets a winning attack. Maybe this calculations are somewhat imprecise, but intuitively one senses that it must be it: Time to check and see.
Yep, the mainline is clearly the best way, but it really is quite obvious that knight sacrifice has to win.
Oct-11-13
Premium Chessgames Member
  morfishine: <13.Nxg5> is the most natural move and easy to calculate since the piece-sac is offset by Black's QR & WSB "not playing" thus giving White a numerical superiority at the point of attack

*****
PM: Perhaps Black can defend better with 13.Nxg5 hxg5 14.Bxg5 <14...Kg7> but after 15.Qd2 Rh8 16.e5 Nh7 17.Ne4 b6 18.Qf4 Bb7 19.Nf6 Nc6 20.Re3 Nxg5 21.Qxg5+ Kf8 22.Rg3 Bxf6 23.exf6 the position is no longer defendable


click for larger view

*****

Oct-11-13  Kikoman: <Puzzle of the Day>

<13. Nxg5!> and that's it! :D

Oct-11-13  njchess: It is not often that I criticize a player for castling too soon, but in this case, Black's 8. ... 0-0 is an excellent example. Better was cxd4. By not taking the pawn, Black allows White to "lock" the center and launch a kingside attack, which he does nicely. White's kingside assault is helped by Black's second mistake which is 12. ... g5. This gives White an easy target. The rest is tactics.
Oct-11-13  Nerwal: <It is not often that I criticize a player for castling too soon, but in this case, Black's 8. ... 0-0 is an excellent example. Better was cxd4. By not taking the pawn, Black allows White to "lock" the center and launch a kingside attack, which he does nicely. White's kingside assault is helped by Black's second mistake which is 12. ... g5. This gives White an easy target. The rest is tactics.>

That is right on principle but I don't blame black as 8... cxd4 9. ♘xd4 looks very dangerous for him (♘cb5 and e5 are coming). Maybe just 8... d6 was correct, although white is then obviously better.

Games like this one are the reason why lines with ♕b6 or ♕c7 are not more popular in the Rossolimo. Black just falls behind in development after ♗xc6 and d4 as the queen ends up being misplaced on c6 and it requires a lot of care just to keep the balance.

Oct-11-13
Premium Chessgames Member
  Penguincw: I was thinking of a sacrifice on g5, but not sure which one.
Oct-11-13  LIFE Master AJ: 13.NxP/g5 seems to be the move on everyone's mind ... I don't think anyone missed this.
Oct-11-13  Shamot: It is an easy Friday! The position on the board was so easy that I got the first 3-4 moves right away. Maybe the puzzle should be at move 12 ... white to play.
Oct-11-13  Nick46: <FSR: How much analysis does one have to do?> Your analyses are usually pretty close to the mark and most enlightening.
Oct-11-13
Premium Chessgames Member
  whiteshark: Following a renewed critical appraisal of valuation of my assumed solution I come to the conclusion that Vasiukov did it much better.
Oct-11-13
Premium Chessgames Member
  kevin86: The key to this is what piece to sacrifice. Here the queen works with the rook and bishop to force an early grave for black.
Oct-11-13
Premium Chessgames Member
  Jimfromprovidence: How much do you have to do?

You have to see what happens after 13.Nxg5 hxg5 14.Bxg5 Nh7.


click for larger view

If 15. Bxd8 Rxd8 16. Qg4+, then 14...Kh8 saves black, allowing his rook to move to g8 to protect that file.


click for larger view

The most troublesome response to 13.Nxg5 hxg5 14.Bxg5 Nh7 is 15 Be7!


click for larger view

I'm still trying to figure it all out.

Oct-11-13
Premium Chessgames Member
  agb2002: White has a bishop and a knight for the bishop pair.

Black threatens 13... gxh4.

The first idea that comes to mind is the obvious 13.Nxg5 hxg5 (else drops an important pawn) 14.Bxg5:

A) 14... Nh7 15.Bh6 (with the double threat 16.Qg4+ and 16.Bxf8 followed by e5, Ne4, Qg4(h5), Re3, etc.)

A.1) 15... Re8 16.Qg4+ Bg5 (16... Kh8 17.Qg7#) 17.Bxg5 Nxg5 18.Qxg5+ Kf8 (18... Kh7(8) 19.Re3 + -) 19.Qh6+ Kg8 20.Re3 f5(6) 21.Rg3+ Kf7 22.Qg7#.

A.2) 15... f5 16.Bxf8 followed by exf5, Qh5 or Qd5, with attack.

A.3) 15... f6 16.Qh5 threatening Qg6+ looks winning.

B) 14... e5 15.Re3 (15.Qf3 Qxd6; 15.Bxf6 Bxf6 16.Nd5 Qxd6)

B.1) 15... Nh7 16.Bxd8 Rxd8 17.Qg4+ Kf8 (17... Kh8 18.Rg3 + -) 18.Qh4 with many threats (19.Qxd8+, 19.Qxh7, 19.Qe7+, etc.) looks winning.

B.2) 15... Ne8 16.Bxd8 Qxd6 17.Rg3+ Kh7 18.Qh5+ Qh6 19.Qf5+ Kh8 20.Rh3 wins.

Oct-11-13  Patriot: <<morfishine>: <13.Nxg5> is the most natural move and easy to calculate since the piece-sac is offset by Black's QR & WSB "not playing" thus giving White a numerical superiority at the point of attack> Very good point!
Oct-11-13  Abdel Irada: <Nerwal>: Squort!

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