[Event "13th ECC qual. group 2"]
[Site "Eupen BEL"]
[Date "1997.09.24"]
[Round "3"]
[White "Lewis, Andrew BRBC"]
[Black "Ehlvest, Jaan BTLP"]
[Result "0-1"]
[WhiteElo "2320"]
[BlackElo "2610"]
[ECO "E81"]
[EventDate "1997.??.??"]
[Annotator "Hazai"]
[PlyCount "88"]

1.c4 g6 2.Nc3 Bg7 3.d4 d6 4.e4 Nf6 5.f3 O-O 6.Nge2 c5 
    ( 6...e5 7.Bg5! c6 8.Qd2 Nbd7 9.d5 += )
    ( 6...c6!? 7.Be3 e5 )
7.d5 e6 8.Ng3 exd5 9.cxd5 a6 10.a4 h5 
    ( 10...Nbd7!? 11.Be2 h5 )
11.Bg5 
    ( 11.Be2 Nbd7 12.O-O Nh7 13.Be3 Re8 
        ( 13...Ne5 )
    14.Qd2 f5 15.Rad1 h4 16.Nh1 Ne5 17.Nf2 Bd7 
        ( 17...b6!? )
    18.exf5 Bxf5 19.g4 hxg3 20.hxg3 Nf6 21.Kg2 Bd7 22.Bh6 Nf7 23.Bxg7 Kxg7
    24.Rh1 Qe7 25.a5 Rh8 = {Ward-Peng Xiaomin, China-England 1997} )
11...Qa5!? 12.Be2 Nbd7 
    ( 12...Nh7 13.Bd2 Qd8 14.Be3 
        ( 14.O-O?? Bd4+ 15.Kh1 h4 -+ )
    14...Nd7 15.O-O Ne5 16.Qd2 h4 17.Nh1 f5 18.Nf2 {leads to the main line
    with funny transpositions, compare to 11.Be2.} )
    ( 12...Re8 13.O-O Nh7 14.Be3 Nd7 
        ( 14...Bxc3?! 15.bxc3 Qxc3 16.Qc1! {Suddenly White goes for the 
        exchange of Q while he is a P down. The idea is that Black can 
        hardly finish the development of his << because of the pressure on
        the b <->.} 16...Qxc1 17.Rfxc1 Nd7 18.Bf4 Ne5 19.Rcb1 f6 20.Rb6 
        Rd8 21.Bxe5! fxe5 22.Nf1 +/- {Adorjan-Sznapik, Banja Luka 1983} )
    15.Qd2 ~ )
13.O-O Nh7 14.Be3 
    ( 14.Bd2 )
14...Re8 
    ( 14...Bxc3 15.bxc3 Qxc3 {looks a bit better, than the Adorjan game.} 
    )
15.Nh1 
    ( 15.Qd2!? )
15...Ne5 16.Nf2 Qb4 17.Bd2 {It is not easy to capture the Q:} 
    ( 17.a5 Bd7 
        ( 17...Qxb2 18.Na4 Qb4 19.Nb6 Rb8 20.Bd2 Qd4 21.Qc1 ~= )
    )
    ( 17.Ra3 Nc4 18.Bxc4 Qxc4 19.a5 
        ( 19.Bf4 Bf8 20.Rb3 )
    19...Bd7 )
17...Qd4 18.a5 Bd7 19.Ra3 Rab8 
    ( 19...Nc4 20.Bxc4 Qxc4 21.Bf4 
        ( 21.Rb3 Bb5 )
    )
20.Rb3? {but suddenly} 
    ( 20.Qc1 Nc4 
        ( 20...b5? 21.Be3 Qb4 22.Na2 +- )
    21.Bxc4 Qxc4 22.Bf4 Be5 
        ( 22...Bf8 23.Re1 )
    23.Bxe5 Rxe5 24.f4 )
20...b5! {comes with a great effect.} 21.axb6 c4! 22.Ra3 Qxb6 23.Ra2 Bb5 
24.Qc1 Nf6 25.Be3 Qc7 26.Nxb5? {To give away this N against the seemingly 
bad B is a grave error.} 
    ( 26.Qd2 )
26...axb5 27.b4 {Usually this blocvkade strategy is good for White. In 
this case Black's invasion on the << is irresistible.} 27...Ra8 28.Qc2 
Ned7! {/\ Nb6-a4} 29.Bc1 Nb6 30.Nd1 Rxa2 31.Qxa2 Na4 {White cannot 
blockade the vital c3 square.} 32.Qc2 Nd7 33.Bd2? {overlooking Black's 
next move.} 33...f5! -+ {Now Black dominates all over the board.} 34.Nc3 
Nxc3 35.Bxc3 Bxc3 36.Qxc3 fxe4 37.fxe4 Qa7+! 
    ( 37...Rxe4 $143 38.Qg3 Nf8 39.Bxh5 )
38.Kh1 Ne5 39.Qg3 Rf8 40.Bf3 Qe3 41.h3 Kg7 42.Kh2 Ra8 43.Qh4 g5 44.Qg3 h4 
0-1

