GVNA, (GVNAA, GVNAC, GVNAF)
a series of mainframe chess programs written in the early 80s by Gert Vriend in Fortran. Development and target platform was a PDP-10 at Wageningen University . GVNAA played the DOCCC 1981, GVNAC the DOCCC 1982 and GVNAF the DOCCC 1983.
[Event "DCCC 1981"] [Site "Utrecht NED"] [Date "1981.10.??"] [Round "1"] [White "Usurpator II"] [Black "GVNAA"] [Result "0-1"] 1.e4 e5 2.d3 Nf6 3.c4 Nc6 4.Be3 d6 5.Ne2 Be6 6.h4 a6 7.Nbc3 h6 8.Nd5 Bxd5 9.cxd5 Nb8 10.f4 Ng4 11.Bd2 Nd7 12.a4 exf4 13.Nxf4 f5 14.exf5 Qe7+ 15.Ne6 Ndf6 16.Bf4 Rc8 17.Be2 h5 18.Bf3 Kf7 19.O-O Qd7 20.b4 Be7 21.Ng5+ Kg8 22.Ne6 Rh7 23.Qe2 Ra8 24.g3 Rh8 25.Rac1 c5 26.bxc5 Nxd5 27.Bxd5 0-1