(81) Heap,D - Casden,A [A12]
US National Tch#1-02 9193 corr, 1991

1.Nf3 Nf6 2.b3 d5 3.Bb2 Bg4 4.e3 Nbd7 5.Be2 c6 6.0-0 e6 7.d4 Bd6 8.c4 0-0 9.Nbd2 Re8 10.h3 Bh5 11.Rc1 Qc7 12.c5 Be7 13.b4 1/2-1/2