[Event "IBM-B"]
[Site "Amsterdam"]
[Date "1978.??.??"]
[Round "4"]
[White "Christiansen, Larry Mark"]
[Black "Hartoch, Robert G"]
[Result "1/2-1/2"]
[WhiteElo "2490"]
[BlackElo "2405"]
[ECO "B06"]

1.e4 g6 2.d4 Bg7 3.Nc3 d6 4.Be3 c6 5.Qd2 Nd7 6.f3 e5 7.d5 c5 8.Nge2 Ne7 9.g4 h5
10.gxh5 Rxh5 11.Ng3 Rh7 12.Bd3 Nf6 13.O-O-O Bd7 14.Bb5 a6 15.Bxd7+ Qxd7 16.Kb1 O-O-O
17.b3 b5 18.a4 b4 19.Na2 Qb7 20.Nf1 Rdh8 21.Qe2 Bh6 22.Bxh6 Rxh6 23.Ne3 Nh5
24.Nc4 Kd7 25.Nc1 Nf4 26.Qf2 g5 27.Nd3 Nxd3 28.cxd3 f6 29.Rc1 Ng6 30.Ne3 Nf4
31.Qc2 Rh3 32.Rcf1 Qb8 33.Rf2 Kc7 34.Nf5 Kd7 35.Rc1 Qc8 36.Qd2 Qb7 37.Ne3 Ke7
38.Nf5+  1/2-1/2

