From: ako@jyu.fi (Antti Koponen)
Subject: Re: Alehin 4.-de!
Organization: University of Jyvaskyla, Finland
Date: Wed, 19 Aug 1992 09:41:40 GMT

In article <92227.104237U55342@uicvm.uic.edu> <U55342@uicvm.uic.edu> writes:
>
> Here is analysis on the line 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 de!?
>5.Ne5 g6!?
>
>ECO B [1984] has 6.Bc4 (6.c4 also yields white a slight edge:
>6. ... Nf6 7.Be2 Bg7 8.Nc3 00 9.Bf4 c6 10.00 Na6 11.Qd2 Bf5
>12.Rad1 += Dolmatov-Kengis, USSR 1980; white's spacial edge is
>comfortable and enduring) 

Better is 6.-Nb6, after which black has got quite reasonable game!
(Ne5 is hanging after say c5..., black bishop on g7 is quite
strong now because the barrier c3+d4 is lacking)

6. ... c6 (6. ... Be6 leads to play similar
>to the main line) 7.00 (more pushy is 7.Qf3 Be6 8.Nc3 Bg7 9.00 00
>10.Ne4 Nd7 11.Nd7 Bd7 12.Rd1 += Zuravlev-Kengis, USSR 1979)7. ... Bg7
>8.Re1 00 9.Bb3 Be6 10.c3 Nd7 11.Nf3 (11.Nd3 looks well-motivated but
>is a bit artificial and brings white to a dead-end after 11. ... Bf5
>12.Bg5 Re8 = Sideif-zade - Kengis, USSR 1979)11. ... Nc7 

11.-Bg4!?

12.Be6 Ne6
>and the game Cheshkovsky-Kengis, USSR 1981 continued 13.Qb3 Qb6
>14.Qc4 c5 15.d5 Nc7 16.Re7 Qd6 17.Re1 Qd5

17.-Nxd5 = Bagirov

 18.Na3 +=.
>

White always seems to get a bit better game, but the positions are
safe for black. Kengis has played it with enormous success. 

>White's moves in the main line are clear and natural if you are
>neo-classically-minded (or read, "Capablanca-minded").
>

Thats the main problem, Karpov would play the white positions with
an extra pawn to blacks good! but an average clob player is another
question.


>The type of edge that white can get against 5. ... g6!?
>is, I think, more annoying than what white can typically get in
>the old main lines of the Classical variation of the Caro-Kann:

They are indeed much alike: 1.e4 c6 2.d4 d5 3.Nc3 de 4.Nxe4 Nd7 
leads often black to play ...g6

>1.e4 c6 2.d4 d5 3.Nc3 de 4.Ne4 Bf5 and a typical "long-line" goes
>5.Ng3 Bg6 6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bd3 10.Qd3 e6 11.Bd2 Qc7
>12.000 [kinda fun-looking is 12.Kf1!? 000 13.b4 Ngf6 14.Re1 Bd6
>15.Qa3 Kb8 16.c4 Ka8 17.Ne2 Qc8 18.Nc3 Rhe8 19.Rh4 Bb8 unclear
>E.Hector-Vladimirov, Gausdal 1990] 12. ... Ngf6 13.Ne4 000 14.g3 Ne4
>15.Qe4 Bd6 16.c4 c5 et ceter

>
>My advice to those attracted to 5. ... g6!? :
>  1) go nuts and play the more hard-core 5. ... Nd7, daring white
>     to go for the sacrificial line 6.Nf7 Kf7 7.Qh5 Ke6 8.c4 N5f6
>     et cetera. (By the way, this might be a fun topic of analysis
>     in our newsgroup.) My idea in suggesting this is that if white
>     whimps out from the sacrifice, then black has good equalizing
>     chances, and if white goes into the line then s/he will have
>     to deal with finding the book moves over-the-board and some sort
>     of interesting innovation in the line. And yes, you will want
>     to find something new because the line leads to a clear edge for
>     for white *IF* white plays it just right.

Well, above 6.Nf3!? is better , at least a little, for white.
Black would perhaps like the Nd7 to be on b8. (heading for c6)
This position comes from 1.e4 d5!? 2.ed Nf6 3.Nf3 Nxd5

I think 5.-Nd7 is questionable: white gets the draw if he wants
(Qh5+, Qh3+, Qh5+ etc.) knowing the theory will smash black, and
preferring positional play can play Nf3.

>
>  2) Play the Pirc/Modern, for, just as in the Alekhine, white has
>     bountiful opportunities to become overextended. Anyway, I think
>     that these days most tournament players are not, against your
>     Alekhine, going to play that four-pawn attack that you are hoping
>     and praying for!

Yes! :-) the 4-pawns attack is veeery nice to meet! 

The only difficult lines for black are the exchange 3.c4 Nb6 4.ed
(easy to play for white) and 4.Nf3! +-


      On the other hand, against the Pirc/Modern,
>     players of the white pieces seem eager and confident about
>     going into the gusto lines.

But these are often quite dangerous anyway!

>
>Human interest post-script: it seems that Kengis is a prominent sponser
>                            of the 5. ... g6!? line; I saw him at a
>                            1990 Biel tournament. He was a tall,
>                            long-haired dud who could have passed as
>                            as a heavy-metal band member.
>                            ROCK AND ROLL GM!!!
>

With ROCK AND ROLL openings! :-)  



Antti



>.........................................................................
>: Bertrand L. Wilson                : "Chess is a jealous mistress."    :
>: Department of Linguistics         :                 Bert Wilson       :
>: University of Illinois at Chicago :                                   :
>:                                   : "How could I lose to this idiot!" :
>: U55342@UICVM.UIC.EDU              :                 Aaron Nimzovich   :
>:...................................:...................................:
>


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