[Event "15th ECC final"]
[Site "Bugojno BIH"]
[Date "1999.10.31"]
[Round "3"]
[White "Tiviakov, Sergei AGZE"]
[Black "Kozul, Zdenko BOSN"]
[Result "1/2-1/2"]
[WhiteElo "2611"]
[BlackElo "2612"]
[ECO "B67"]
[EventDate "1999.??.??"]
[Annotator "Gofshtein,L"]
[PlyCount "76"]

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O 
Bd7 9.f4 b5 10.Bxf6 gxf6 11.Kb1 
    ( {Deserved attention typical} 11.f5!? Nxd4 12.Qxd4 Bh6+ 13.Kb1 Bf4 
    14.fxe6 fxe6 15.Ne2 Be5 16.Qd2 Qb6 17.Nf4 a5 18.g3 O-O 19.Bh3 += {
    white has more active position.} )
11...Qb6 12.Nxc6 
    ( 12.Nce2!? {preventing development of the blacks bishop to more 
    active place.} 12...Rc8 13.g3 h5 14.Bg2 Na5 15.b3 Nc6 16.Rhf1 Qa5 17.
    c3 Qb6 
        ( 17...Nxd4 18.Qxd4 
            ( 18.cxd4 Qxd2 19.Rxd2 Be7 $132 )
        18...Be7 19.e5! fxe5 20.fxe5 d5 21.Bxd5 exd5 22.e6 +- )
    18.f5 Bh6 19.Qe1 Nxd4 20.Nxd4 e5 21.Nc2 a5 $132 {
    Hjartarson-Ermolinsky,Erevan 1996} )
    ( 12.Nf3 O-O-O 13.g3 Kb8 14.Bh3 Bc8 15.f5 h5 16.Qe1 Bh6 17.Ne2 Ne5 18.
    Ned4 Ng4 19.fxe6 fxe6 20.Qc3 Bb7 21.Nxe6 Rc8 ~ {Liberzon-Zaltsman,Lone
    Pine 1981} )
12...Bxc6 13.Qe1 
    ( 13.f5 b4 14.Ne2 e5 15.Ng3 h5 16.Be2 
        ( 16.h4 a5 17.Bc4 Rc8 18.Qe2 +/- {Van der Wiel} )
    16...h4 17.Nh5 Be7 18.Bf3 a5 19.g3 hxg3 20.hxg3 O-O-O 21.g4 a4 22.Rhe1
    Qc5 23.Qe3 Kc7 ~ {Huebner -Dreev,Nyssloch 1996} )
13...Ra7!? {White has threatened 14.Nd5.In this moment it was replied by 
14...exd5 15.exd5+ Re7} 
    ( 13...Qc5!? )
    ( 13...Be7 14.f5 Qc5 15.fxe6 
        ( 15.Qh4 h5 16.Bd3 O-O-O 17.Qh3 $40 {1-0 
        Kutuzovic,B-Bertok,M/Zagreb 1997/EXT 99 (40)} )
    15...fxe6 16.Bd3 Kf7 17.Rf1 Rag8 18.Rd2 b4 19.Nd1 a5 20.Rdf2 ~ {with 
    some pressure Hrachek-Popovich,Brno 1992} )
    ( 13...O-O-O 14.Bd3 h5 15.Rf1 Kb8 16.a3! {preventing blacks 
    counterplay on the queenside} 16...Bb7 17.f5 Qc5 18.fxe6 fxe6 19.Rxf6 
    Qe5 20.Rf7 +/- {Lalich-Kozul,Croatia 1997} )
14.f5 
    ( 14.Bd3 b4 15.Ne2 a5 16.f5 e5 ~ {0-1 Gyorkos,L-Kozul,Z/Osijek 
    1992/EXT 99 (35)} )
14...h5 {other possibilities are:} 
    ( 14...b4 15.Ne2 e5 
        ( 15...Bxe4 16.fxe6 fxe6 17.Nf4 +/- )
    16.Ng3 h5 
        ( 16...Qc5 17.Nh5 Be7 18.Qh4 Qe3 19.Bd3 +/- )
    17.Be2! $36 {Gurevich,I-Kozul,Z/Biel izt 1993/1-0 (53)} )
    ( 14...Rg8 15.Qh4 Ke7 16.Ne2! e5 17.Ng3 Qe3 
        ( 17...h6? 18.Rxd6! Kxd6 19.Qxf6+ +- )
    18.Qxh7 Rg7 19.Qh8 Bxe4 20.Bd3! Bxg2 21.Rhe1 Qc5 22.Be4 $40 {1-0 
    Dimitrov,V-Kozul,Z/ Linares 1996 (52)} )
15.Bd3 {In my opinion more promising was 15.fxe6, opening 'f' line for the
attack.} 
    ( 15.fxe6!? fxe6 16.Bd3 Rg7 17.Rf1 Be7 18.g3 Qc5 19.Ne2 Bd8 20.Nf4 Kd7
    21.Rf3 Qe5 22.Bf1 $36 {1-0 Zontakh, A-Simonovic,A/Ulcinj 1998/EXT 99 
    (52)} )
15...b4!? {Black transfers the game to the usual, for this variation, pawn
structure.Kozul plays this variation very often, scoring well.} 
    ( 15...Qc5?! 16.Rf1 
        ( 16.fxe6!? fxe6 17.Rf1 Bg7 18.Ne2 Rh6 19.c3 Rb7 20.Nf4 Qe5 21.Bc2
        $36 {1-0 Palac,M-Fercec, N/Zadar 1997/EXT 99 (30)} )
    16...e5 $132 {0-1 Palac,M-Kozul,Z/Medulin 1997/EXT 99 (59)} )
16.Ne2 e5 17.Qh4 {Risky plan,in spite of winning pawn,white collides with 
some problems.17.h4 was very intresting} 
    ( 17.h4!? {attacking weak 'h' pawn and preventing development of the 
    bishop h6.} 17...a5 18.Ng3 a4 19.Bc4 += )
17...Ke7 18.Ng3 Bh6!? 19.Qxh5 Qc5 20.Rhe1 a5 {Black has sufficient 
counterplay for the lost pawn.} 21.b3 {with idea Bc4} 21...Bb5 22.Bxb5 
Qxb5 23.Nf1 += a4 24.Ne3 
    ( 24.Qe2 Qc6 25.Qd3 
        ( 25.Ne3 Bxe3 26.Qxe3 Rc7 $36 )
    25...axb3 26.cxb3 Rc8 27.Ne3 Bxe3 28.Rxe3 Ra5 $132 )
24...Bxe3 25.Qxh8 axb3 26.cxb3 Bf2 {Black tries to complicate the game in 
mutual timetrouble, missing possibility to force the draw after:} 
    ( 26...Qc6! 27.Qh4 
        ( 27.Rxe3 Rxa2 28.Kxa2 
            ( 28.Rc1 Ra1+ )
        28...Qc2+ 29.Ka1 Qxd1+ 30.Kb2 Qd2+ 31.Ka1 Qxe3 -/+ )
    27...Rxa2 28.Kxa2 Qc2+ 29.Ka1 Qc3+ = )
27.Rxd6 $8 
    ( 27.Rf1 Qe2 -+ )
27...Kxd6 28.Qxf6+ Kc7 29.Rc1+ Kb7 30.Qxf7+ Ka6 31.Qe6+ Bb6 32.Qc8+ Ka5 
33.g4 Qd3+ 34.Qc2 Qe3 35.Qc6 
    ( 35.Qc4?! Rd7 36.a3 Qd3+ 37.Rc2 Qxc4 38.Rxc4 bxa3 39.Ka2 Rd2+ 40.Kxa3
    Rxh2 41.Rc8 Kb5 42.Rb8 Rg2 -/+ )
35...Qd3+ 36.Rc2 Qd1+ 37.Rc1 Qd3+ 38.Rc2 Qd1+ 1/2-1/2

