[Event "6th ETCh final"]
[Site "Moscow URS"]
[Date "1977.??.??"]
[Round "4"]
[White "Augustin, Josef CSR"]
[Black "Nunn, John Denis Martin ENG"]
[Result "0-1"]
[WhiteElo "2445"]
[BlackElo "2410"]
[ECO "C26"]
[EventDate "1977.04.13"]
[PlyCount "66"]

1.e4 e5 2.Nc3 Nf6 3.g3 Bc5 4.Bg2 d6 
    ( 4...Nc6 $142 5.d3 a6 )
5.Nge2 Nc6 6.O-O 
    ( 6.Na4 $142 )
    ( 6.d3 a6! )
6...h5 7.d3 
    ( 7.h4 a6 8.d3 Bg4 {Qd7, 0-0-0} )
    ( 7.h3 Be6 
        ( 7...h4?! 8.g4 Nxg4 9.hxg4 h3 10.Bf3 Qh4 11.Kh1! Bxg4 
            ( 11...Bxf2 12.d3 Bb6 
                ( 12...Nd4 13.Nxd4 exd4 14.Nd5 +- Qg3? 15.Bf4 +- )
            13.Qe1 Bxg4 14.Qxh4 Rxh4 15.Bg5 Bxf3+ 16.Rxf3 +/- )
        12.Bxg4 Qxg4 13.Ng3 +- )
    8.d3 
        ( 8.Nd5 Nxd5 9.exd5 Ne7 10.Nc3 h4 11.g4 Ng6 )
    8...Qd7 9.Kh2 O-O-O 10.f4? 
        ( 10.Bg5 Rdg8 {Nh7, g5} )
    10...Ng4+ )
    ( 7.Na4 h4 8.Nxc5 dxc5 9.d3 hxg3 10.hxg3 
        ( 10.fxg3 Bg4 11.Be3 Nd4 12.Bxd4 cxd4 -/+ )
        ( 10.Nxg3 Ng4 11.h3 Qh4 12.Nf5 Bxf5 13.exf5 Nh6 
            ( 13...Nd4? 14.c3! )
        14.Bxc6+ bxc6 15.Qf3 O-O-O! )
    10...Be6 {Qd7, 0-0-0} )
7...h4 8.Bg5 hxg3 
    ( 8...Bg4 9.Qd2 
        ( 9.Bxh4? Nd4 )
    9...hxg3 10.Nxg3 Qd7 11.Bxf6 gxf6 12.Nd5 O-O-O 13.Nxf6 Qe7 
        ( 13...Qe6 14.Qg5! )
    14.Nxg4 Qh4 15.Qd1 Rdg8 16.Nf5 Qxg4 17.Qxg4 Rxg4 18.c3 += )
9.Nxg3 
    ( 9.hxg3?! Bg4 10.Qd2 Qd7 11.Bxf6 
        ( 11.Na4 Bh3 
            ( 11...Bf3? 12.Bxf3! Qh3 13.Bh4 Rxh4 14.gxh4 Qxf3 15.Nxc5 Ng4 
            16.Ng3 +- )
        12.Nxc5 dxc5 13.f3 Bxg2 14.Kxg2 Qh3+ 15.Kf2 Qh2+ 16.Ke1 Nd4 -/+ )
    11...gxf6 12.Nd5 O-O-O 13.Nxf6 Qe6 14.Nxg4 Qxg4 =+ )
9...Nd4 10.Nh5 
    ( 10.Nd5 c6 11.Nxf6+ gxf6 12.Be3 Rh4 ~ {Bg4} )
10...Ne6 11.Nxg7+ Nxg7 12.Nd5 Nxd5 13.Bxd8 Nf4 14.Bg5 Nge6 15.Bxf4 Nxf4 
16.Kh1 Be6 17.Bf3 Rh4 18.Rg1 Ke7 19.Rg2 Nxg2 20.Bxg2 Rah8 21.Qd2 Rxh2+ 22.
Kg1 R2h4 23.Re1 Rg8 24.Re3 Bxe3 25.Qxe3 Bh3 26.Kf1 Bxg2+ 27.Ke2 c5 28.Qd2 
b6 29.Qc3 Rf4 30.Qa3 a5 31.Qb3 Bh3 32.f3 Rg2+ 33.Ke3 Bg4 
    ( 33...Bg4! 34.fxg4 Rgf2 35.Qxb6 R4f3# )
0-1

