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Leonid Stein vs Vladimir M Liberzon
Yerevan (1965), Yerevan URS, rd 4, Sep-20
Pirc Defense: Austrian Attack. Unzicker Attack (B09)  ·  1-0

ANALYSIS [x]

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Kibitzer's Corner
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Dec-26-03  blunder maker: Ohya!
i'm worry to attack cause me careless to defense(lol),thanks for your remind
Dec-26-03  Catfriend: <patzer2>
The best is 21.g4!.
As to Nf4 - 21..Nf4 22.Q:h7+ Kf7 23.B:Nf4! e:Bf4 24.Nfg5+ Ke8 25.Bb5+! Bd7 (25..Q:Bb5 26.Q:g6+) 26.Q:Bg7
Dec-26-03  patzer2: <Catfriend> Thanks for the analysis. My initial idea of 20...e5 does indeed appear to fail to equalize against 21. g4! (regardless of where the black knight moves) as your analysis indicates. I was away from home and visiting with my daughter and son-in-law over Christmas and did not have the benefit of Fritz 8. However, your analysis is convincing. Stein's play in this variation of the Pirc is obviously well worth studying as his tactics are apparently sound.
Dec-26-03  talchess2003: A much stronger, and also hilarious variation for black on move 10 was...

10... exf4 11. ♗xf4 e5 12. ♗g3 e4 13. ♘d2 e3 14. ♕xe3 ♖e8 15. ♘e4 f5

That e-pawn just stubbornly marches right into white's territory, wreaking havoc. It just got from e7 to e3 w/ tempo in a matter of 3 moves!

Better for white, but still troublesome nontheless would be:

10... exf4 11. ♗xf4 e5 12. ♗e3 e4 13. ♘d2 ( 13. ♘xe4 ♖e8 14. ♘d2 f5 15. ♘c3 ♗d4 16. ♘c4 ♘b6 and white is in a lot of trouble!) 13... f5

and the scenario would be unclear. If white can mobilize his pieces into activity than he would have a dangerous attack on the king due to the overextended pawns. although white's position is also in danger, his king is still in the center. Black would probably have an advantage, as well as the initiative.

This may have flaws in it, I'm calculating from the screen, but please give feedback!

Dec-26-03  Catfriend: My computer says 10..e6 is the best.
11.N:e4 Nf6 12.N:Nf6+ B:Nf6 13.h:g6 h:g6 14.Bc4 Qd6 15.c3 with +0.21 for white
Dec-26-03  talchess2003: well input my variation and see what it says :P 10... exf4 11. Bxf4 e5 etc.

i lost the luxury of fritz about a year ago when i had to delete it due to computer problems and an adamant father.

Dec-26-03
Premium Chessgames Member
  Sneaky: <I had the solution up to the last move, but i thought the capture of the knight at f6 could lead to escape.> That's what I did too. A very common error is to analyze a variation and at some point judge "well, that can't be it..." and then go on to look at other variations. Often the answer is only one move deeper than when you give up.
Dec-26-03  Catfriend: 1) 10..e:f4 11.B:f4 is countered by B:Nc3+ 12.b:Bc3 Qa5!, so e5 is senseless!

2) 10..e:f4 11.h:g6 f:g6 12.Bc4+ e6 13.B:e6+ Kh8 is a bit better for black

3) 10..e:f4 11.h:g6 h:g6 12.Qh4 Nf6 13.B:f4 Nh5! 14.g4! Bf6 15.Bg5! B:Nc3+ 16.b:Bc3 Qc7 17.0-0-0! wins for white.

Dec-27-03  talchess2003: what are you talking about.. 10... exf4 11. Bxf4 Bxc3+ 12. bxc3 Qa5 13. Bd2 gxh5? 13. gxh5 would be suicidal. What you probably mean is that the queen is well placed. Yet white still has some play in this position, with either g4 or Bg5 following Qh4, both blocking off the queen's route to the kingside. Also, in your first line black gives up one of his most active pieces, the black bishop. Black can hold the fort without doing so.

I don't see the point of fxg6. white doesn't have to move Bc4, instead keep the attack alive with the immediate 12. Qh4. All that's different in this position is that black is left with a weak e-pawn.

as to your third variation, there is a saying that you should "not to reinforce your statement with bad moves for the losing side" Why would black move 13. Nh5? and why would u give it an exclamation mark, it is a waste of a move, g4 just puts it back into its original spot, with a gain of time for white.

I believe that black can hold with correct play. e.g.

10... exf4 11. hxg6 hxg6 12. Qh4 Nf6 13. Bxf4 Qa5 14. Bg5 Nh5 (now it is time to play this move) 15. g4? Bxc3+ 16. bxc3 Qxc3+ 17. Ke2 Bxg4! 18. Qxg4 Qxa1 winning for black.

Dec-27-03  patzer2: <Catfriend/talchess2003> Just got home from visiting with my daughter and plugged <talchess 2003>'s recommended 10...exf4 into Fritz 8 for analysis. Looks like 10...exf4 is a sound equalizing move for Black.

After 10...exf4 11. hxg6, Fritz 8 indicates Black equalizes with either 11...hxg6 or 11...fxg6 or 11...Bxc3+. After 10... exf4 11. hxg6 hxg6 12. Qh4 Nf6 13. Bxf4 Qa5 14. Rd1 [14. Bg5 Nc6 also slightly favors black] 14...Qh5!, Black has a slight advantage per Fritz 8 (-0.31 @13/38 depth & 684kN/s).

Although, there does not appear to be any forced win at this point for either side, <Talchess2003> is to be congratulated for finding a resource for Black to steal the initiative and put a stopper on White's attack in this game. Also, appreciate <Catfriend> for providing assistance to <Talchess2003> in improving on this analyis. Good teamwork!

Dec-27-03  patzer2: Perhaps 6...exd5 was the earliest opportunity for Black to improve in this Austrian Pirc as in A Naumann vs V Bogdanovski, 2002
Dec-27-03  patzer2: The idea of 6...Ne8 to give up space and center control for a counter-attack on the extended White center (after 6. e5 in the Pirc Austrian Attack) worked for Black in G Botterill vs N Littlewood, 1968
Dec-27-03  patzer2: Although Fritz 8 indicates Black has a slight advantage after 10...exf4 in this Pirc Austrian Attack variation, White secured a decisive victory in Bronstein vs Palmito, 1958 which is the only game in the ChessGames.com data base with this line.
Dec-27-03  patzer2: Perhaps worth considering is 10...e4 which won for black in A Neiksans vs E Postny, 2001 and was good for a draw in the other two games with this move in the ChessGames.Com database, including Say Hassan vs V Spassov, 2001 and S Shilov vs B Szczechowicz, 2001
Dec-27-03  patzer2: Kasparov and Keene in Batsford Chess Openings recommended 6...dxe5! (not 6...exd5 as I mistakenly transposed above), as for example in A Naumannvs V Bogdanovski 2002(see link above), as equalizing for Black. The line given by BCO is 6...dxe5 7. dxe5 Qxd1+ 8. Kxd1 Nh5 9. Bc4 Nc6 10. Be3 Bg4 11. Rf1 Na5 12. Be2 f6 13. ef Bxf6 = (Unzicker-Pfleger, Munich 1979).
Dec-27-03  talchess2003: When you hand this position over to such tacticians as Stein and Bronstein you could bet on white despite black's slight advantage :P

I myself am a little hesitant to play e5 in this opening as white, instead I wait for black to play e5 and then push f5. I can see no way for white to hold the center in the future and get the opinion that black easily equalizes very early in the game. Instead, after looking at this game, I now allow the e5 push by black. For the only way to avoid it is with the overagressive e5 o on white's part.

Fischer vs Benko, 1963

Dec-27-03  patzer2: <talchess2003> It may be best to know a little theory and be flexible in deciding when to play e5 as White in the Pirc Austrian Attack. In some lines it is considered best as with 7. e5 in White's solid win in Shirov vs And Volokitin, 2002
Dec-27-03  patzer2: <talchess2003> For a game in which White avoids playing e5 in the Pirc Austrian Attack with the idea of playing f4 after black plays e5, I thought you might enjoy White's win in Flear vs Tseshkovsky, 2003 Flear plays a noncommital 5. a3 and wins using this idea (wait for black to play e5 and then play f4).
Dec-27-03  talchess2003: yea, just did, it was a good game :) did u see the fischer game? its a great game, and a great example of this method of playing against the Pirc.

Fischer vs Benko, 1963

Dec-28-03  patzer2: I'm a big Fischer fan, perhaps because I started my first serious interest in Chess during the 1972 Fischer versus Spassky Championship match. The game you reference is a classic in the Pirc and Fischer's 6. Bd3 (still a very popular move used by some of today's top players, as in Shirov vs And Volokitin, 2002) is probably best play. I've had good succcess with the Austrian Attack in the Pirc, but there are many other approaches to defeating it depending on what your opponent is comfortable (or perhaps unconfortable and unfamiliar) with.
Mar-30-05  aw1988: <When you hand this position over to such tacticians as Stein and Bronstein you could bet on white despite black's slight advantage :P>

That depends who the opponent is.

Aug-20-07
Premium Chessgames Member
  rodrigochaves: It was a very nice tatical puzzle.And i was not able to find the winner sequence maybe because its not common to me mates that are not in the edge of the board.(fourth tactical lesson in according to patzer 2).

Does anyone know the best way to improve tactical skills?Where can i get some tactical problems to try to resolve?

thanks.

Mar-06-09  dwavechess: 20/25 concur with Rybka 3 at 3 min. per move quad for Stein
Dec-10-15
Premium Chessgames Member
  ChessCoachClark: Laszlo Polgar included this game in CHESS: 5334 Problems, Combinations and Games as Game #4670 on page 868.
Jun-19-21  TheBish: This game would make a great Friday puzzle, White to play (25.?). Just like it was way back on Dec-26-2003! Maybe back it up a move, 24. Nf6+!. Would that make it a Saturday puzzle? One fun line goes 24. Nf6+ Kf7 25. Ne5+ Ke7 26. Nd5#. Of course, 26. Ng8++ (double check) is also mate, but I think it's a little more picturesque to end it with a royal fork!
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