[Event "13th ECC qual. group 3"]
[Site "Slough ENG"]
[Date "1997.09.22"]
[Round "1"]
[White "Volke, Karsten EMBE"]
[Black "Adams, Michael SLGH"]
[Result "1/2-1/2"]
[WhiteElo "2455"]
[BlackElo "2680"]
[ECO "A57"]
[EventDate "1997.??.??"]
[Annotator "Stohl"]
[PlyCount "78"]

1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.f3 g6 {This move has a bad reputation
and is considered much weaker than the main alternatives 5...e6 and 
5...ab5.} 6.e4 d6 7.a4 
    ( {White's strong hold onto b5 doesn't enable Black to achieve the 
    typical Volga << counterplay on the a and b-files. In this sense also 
    possible is} 7.Na3!? Bg7 8.Ne2 O-O 9.Nc3 Nbd7 10.Be2 Nb6 11.O-O Bb7 
    12.Be3 
        ( 12.Bg5 h6 13.Bh4 Nh5 14.f4 Nf6 15.bxa6 Bxa6 16.Bxa6 Rxa6 17.Qe2 
        Qa8 18.Nab5 Ra5 19.Rad1 Na4 20.e5 Nxc3 21.Nxc3 dxe5 22.fxe5 Nd7 
        23.e6 +- {->,Rylander,D-Punteri,M/EUChJ Tallin/1997/} )
    12...Qc7 13.Qd2 Rfd8 14.bxa6 Bxa6 15.Nab5 Qb7 16.Rfd1 Ne8 17.a4 Nc7 
    18.b3 Bxb5 19.axb5 Rxa1 20.Rxa1 Ra8 21.Rb1 Ra3 22.Qc1 Qa7 23.Na4 Ra2 
    24.Bf1 Nca8 25.Nxb6 Nxb6 26.b4! +- {Gallego,V-Pham,S/ESP-ch 
    Torrevieja/1997/} )
7...Bg7 8.Na3 O-O 9.Ne2 e6!? {Black logically tries to mix up the matters 
in the center.} 
    ( {A good example of White's strategy is the following game-} 9...axb5
    10.Nxb5 Ne8 11.Nec3 Nc7 12.Bg5 Nba6 13.Bc4 Rb8 14.O-O h6 15.Be3 Bd7 
    16.Qd3 Kh7 17.f4 f5 18.e5! dxe5 19.fxe5 Bxe5 20.Rae1 Nb4 21.Qd2 Bxb5 
    22.Nxb5 Nxb5 23.axb5 Qd6 24.Bxh6 +/- {Bareev,E-Adams,M/Munich 1993/0-1
    (54)} )
10.Nc3?! 
    ( {More clearcut and simpler is} 10.dxe6 $142 !? Bxe6 
        ( 10...fxe6 11.Bg5 Qa5+ 12.Bd2 Qc7 13.Bf4 Qa5+ 14.b4 cxb4 15.Nc4 
        Qd8 16.Bxd6 axb5 17.Bxf8 Qxf8 18.Nb6 Ra6 19.Nxc8 Qxc8 20.Rc1 Qd7 
        21.Qxd7 Nfxd7 22.axb5 Ra2 23.Rb1 Nc5 24.Kf2 b3 25.Kg3 b2 26.Nf4 
        Ra1 27.Bc4 Be5 28.Kg4 +/- {Nogly,C-Hess,M/Hamburg op/ 1992/} )
    11.Nf4 d5 12.Be2 
        ( 12.Nxe6 fxe6 13.exd5 Nxd5 14.Bc4 axb5 15.Bxb5 Qh4+ 16.g3 Qb4+ 
        17.Qd2 Rxf3 18.Qxb4 cxb4 19.Nc4 Ra7 20.Ke2 Rf8 21.Bd2 Na6 22.Bxa6 
        Rxa6 23.Rhf1 Rc8 =+ {0-1 Kludacz,M-Pinski,J/Koszalin op 1997 (60)}
        )
    12...axb5 
        ( 12...Qe7 13.e5 Nh5 14.Nxh5 gxh5 15.f4 Qh4+ 16.g3 Qh3 17.Bf1 Qg4 
        18.Qxg4 hxg4 19.Bg2 +/- {Levitt,J-Smith,A/Dublin zt/1993/} )
    13.Nxb5 Nc6 14.O-O 
        ( 14.exd5 Nxd5 15.Nxe6 fxe6 16.O-O Nd4 17.Re1 Qh4 18.Bf1 Rad8 19.
        Re4 Qh5 20.Nxd4 Bxd4+ 21.Rxd4 cxd4 22.Qxd4 Nf6 ~ {
        Bogdanovski,V-Cosma,I/ Belgrade Trako/1994/} )
    14...Qd7 15.exd5 Nxd5 16.Nxd5 Bxd5 17.Be3 Qe7 18.Bf2 Rfd8 19.Qc2 Nd4 
    20.Nxd4 cxd4 21.Bd3 += {Levitt,J-Nelson,J/Swansea GB-ch/1995/} )
10...exd5 
    ( 10...Bb7 11.Bc4 axb5 12.Naxb5 Nxd5 13.Nxd5 exd5 14.Bxd5 Bxd5 15.Qxd5
    Ra6 16.O-O Qb6 17.Qc4 Nc6 18.Nc7 Bd4+ 19.Kh1 Ra5 20.Nd5 Qa7 21.Bd2 Ne5
    22.Qa2 Ra6 23.Bc3 Bxc3 24.Nxc3 +/- {Kohler, T-Lutzenberger,R/GER-ch 
    Sued Jedesheim/1991/} )
11.Nxd5 Nxd5 
    ( {Hazardous is} 11...Nxe4?! 12.fxe4 Qh4+ 13.Kd2 Qxe4 14.Qf3 Bh6+ {
    Vaisser,A-Polgar,S/ Oviedo rapid/1993/} 15.Kd1! +/- {/\} 15...Bg4? 16.
    Nf6+ )
    ( 11...Nh5 12.g3 Nd7 13.Be2 Bb7 14.bxa6 Bxa6 15.Nb5 Bxb5 16.Bxb5 f5 
    17.Bxd7 Qxd7 18.Nb6 Qb7 19.Qd5+ Qxd5 20.exd5 Ra6 21.a5 Rb8 22.Kd1 Bd4 
    23.Kc2 Nf6 24.Bg5 Kf7 25.Rhe1 c4 26.Bxf6 Bxb6 27.Bc3 +/- {
    Lavrov,A-Vajda,L/Budapest FS FebIM-A/1995/} )
12.Qxd5 Ra7 13.Bc4 Bd4! N {<=> Trapping White's K in the center.} 
    ( 13...Be6 14.Qd3 d5!? 15.Bxd5 Bxd5 16.Qxd5 Qa5+ 17.Bd2 Qxa4 18.b3 Qd4
    19.Qxd4 Bxd4 20.Rb1 Rb7 21.b4 cxb4 22.Bxb4 Rc8 23.Bd2 axb5 24.Nxb5 Nc6
    25.Nc3 Rxb1+ 26.Nxb1 f5 27.exf5 gxf5 28.Ke2 += {
    Tsvetkov,I-Marcholev,D/BUL-ch/ 1997/} )
14.h4? {A serious tactical miscalculation, after which White's [+] falls 
to pieces.} 
    ( 14.Qg5 Qxg5 
        ( 14...Bxb2? 15.Qxd8 Bc3+ 16.Bd2 Bxd2+ 17.Kxd2 Rxd8 18.b6 Rb7 19.
        a5 +/- )
    15.Bxg5 Bxb2 16.Ra2 Bxa3 17.Rxa3 axb5 18.Bxb5 Ba6 ~ )
    ( 14.bxa6 Nxa6 {/\Nb4|^} )
    ( 14.Bg5!? Qb6 
        ( 14...Qa5+? 15.Bd2 Qxa4 16.b3 +- )
    15.Be2 axb5 
        ( 15...Be6? 16.Nc4! )
        ( 15...Bxb2 16.Nc4 Bc3+ 17.Bd2 +/- )
    16.Nxb5 Bxb2 17.Nxa7 
        ( 17.Rb1 Be5 = )
    17...Bxa1 18.Nxc8 Bc3+ 19.Bd2 Bxd2+ 20.Qxd2 Rxc8 $132 )
14...Be6 15.Qg5 Bf6 16.Qg3 
    ( 16.Qf4 Bxc4 17.Nxc4 axb5 -/+ {/\} 18.Nxd6 Rd7 -+ )
16...Bxc4 17.Nxc4 axb5 18.Nxd6 Rd7! 19.Bf4 $8 
    ( 19.Nxb5 Rd1+ -+ )
    ( 19.O-O Rxd6 20.e5 Bxh4 -+ )
    ( 19.e5 Bxe5! 20.Qxe5 Re7 -+ )
19...Bxb2 20.O-O!? 
    ( 20.Rb1 Qa5+!? 
        ( 20...Bc3+ 21.Ke2 bxa4 22.Rhc1 
            ( 22.Nb5? Rd2+ -+ )
        22...Bb4 =+ )
    21.Ke2 
        ( 21.Kf1 Qxa4! -/+ )
    21...Qc3 $40 )
    ( 20.Rd1 Qa5+ 21.Ke2 Qxa4 -+ {><Ke2,o^b,c} )
20...Bxa1 21.Rxa1 bxa4 22.Rxa4 Nc6 {White somehow managed to survive the 
opening, but he is an exhchange down for unsufficient compensation.} 23.
Kh2 
    ( 23.Rc4 Nd4 24.Kf2 Qa5 -+ {->} )
23...Nd4 24.Ra2 Qe7?! 
    ( 24...Ne6 $142 25.e5 f6!? 
        ( 25...Nxf4 26.Qxf4 Qe7 27.Ne4 $132 )
    26.Bh6 Ng7 -/+ )
25.e5 Qe6 
    ( 25...Ne6!? 26.Ne4 Rd4 -/+ )
26.Rd2 Nf5 27.Qf2 Nxd6 28.exd6 Rc8 29.Re2 Qf6 
    ( 29...Qf5 30.Bg3 c4 -/+ )
30.Be5 Qf5 31.Bg3 h5? {A serious mistake, which costs Black his passed 
pawn and winning chances.} 32.Re5 ~= Qd3 33.Rxc5 Re8 
    ( 33...Rxc5 34.Qxc5 Kg7 35.Qc8 Rxd6 = 
        ( 35...Qf5 36.Qe8 $36 )
    )
34.Rc7 Rdd8 
    ( 34...Rxd6 35.Bxd6 Qxd6+ 36.Qg3 = )
35.Qa7 Qd5 36.Re7 Rf8 
    ( 36...Rxe7? 37.Qxe7 Rf8 38.d7 Qa5 39.Bd6 +- )
37.Qe3 Rxd6 = 38.Bxd6 Qxd6+ 39.Qe5 Qxe5+ 1/2-1/2

