(7) Bachler,Kevin - Preo,Nicholas [B32] 4th North American Invitational Champ, 1983 [Kevin L. Bachler] 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7 5.Nb5 Qb8 6.c4 Nf6 7.N5c3 e6 8.Be3 b6 9.Be2 Bc5 10.Qd2 Bb7 11.f4 Nb4 12.0-0! 12...Bxe3+ 13.Qxe3 Nc2 14.Qd3 Nxa1 15.e5 Ng8 16.Nb5 Bc6 17.Nd6+ Ke7?! Safer and better is Kf8. 18.Nc3 Qc7 19.Qg3 g6? Again, better is Kf8. 20.f5!! exf5 [/\20...Nc2 21.fxg6 fxg6 22.Rf7+ Kd8 23.Qg5++- ; 20...gxf5 21.Qg7 Rf8 22.Qg5+ f6 23.Qg7++- ; 20...Nh6 21.Qg5+ Kf8 22.Qxh6+ Ke7 (22...Kg8 23.f6 ) 23.Qg5+ Kf8 24.Qf6+- ; 20...Rf8 21.fxg6 hxg6 (21...fxg6 22.Qg5++- ) 22.Qg5+ f6 23.Qxg6 Kd8 (23...fxe5 24.Qg7+ Kxd6 25.Qxf8+ Ne7 26.Rd1+ Bd5 27.Qxh8+- ) 24.Qg7 Nh6 25.Rxf6 Rfg8 26.Rxh6!!+- ; 20...f6 21.fxg6 h5 (21...hxg6 22.Qxg6 fxe5 23.Qf7+ Kxd6 24.Rd1+ Kc5 25.a3 Nc2 26.b4+ Nxb4 27.Qf2# ) 22.exf6+ Nxf6 23.Rxf6 Rhf8 (23...Kxf6 24.Nde4++- ) 24.Rxf8 Rxf8 (24...Kxf8 25.g7+ Ke7 26.Nf5+ Kd8 27.g8Q# ) 25.g7 Rg8 26.Nf5+ Kd8 27.Qg5+ Kc8 28.Ne7++- ] 21.Rxf5!! gxf5 [21...Rf8 22.Rxf7+ Rxf7 23.Nxf7 Nh6 (23...Kxf7 24.e6++- ; 23...Kf8 24.Nxh8 Qd8 25.Nd5 Bxd5 26.cxd5 Kg7 27.Qc3 Kxh8 28.d6 Kg7 29.e6+ Nf6 30.Bb5 Qf8 31.e7 Qe8 32.b3 Nxb3 33.axb3 h5 34.Qc7+- ) 24.Nxh8 Nf5 25.Qg5+ Ke8 26.Nxg6+- ] 22.Qg7 Rf8 [22...Qb8 23.Qxf7+ Kd8 24.Qf8+!! Kc7 25.Ncb5+ Bxb5 26.Nxb5+ Kb7 (26...Kc6 27.Bf3+ d5 28.Bxd5+ Kd7 29.e6# ) 27.Bf3+ d5 28.Bxd5+ Ka6 29.Qa3# ; 22...Nh6 23.Qf6+ Kf8 24.Qxh6+ Kg8 25.Qg5+ Kf8 26.Qf6+- ] 23.Qg5+ f6 [23...Ke6 24.Qxf5+ Ke7 25.Qg5+ Ke6 26.Bg4+ f5 27.exf6+ Kxd6 28.Nb5+ Bxb5 29.Qd5# ] 24.Qg7+ Ke6 25.Qxf8(.) Kxe5 [25...Nc2 26.Qe8+ Ne7 27.Qf7+ Kxe5 28.Qxe7+ Kf4 (28...Kd4 29.Nxf5# ) 29.g3+ Kg5 30.Qg7# ; 25...fxe5 26.Ne8!!+- Qb7 27.Ng7# ] 26.Nf7+ Kd4 [26...Ke6 27.Nxh8 Qf4 28.Qxg8+ Ke7 29.Qxh7+ Kd6 (29...Ke6 30.Qg8+ Ke7 31.Nd5+ Bxd5 32.Qxd5+- ; 29...Kd8 30.Qg8+ Kc7 31.Qg3+- ) 30.Qh3+- ; 26...Kf4 27.Kf2+- ] 27.Qb4!! Ke3 [27...Qf4 28.c5+ Ke3 29.Nd1++- ] 28.Bf1! Bf3 [28...Nc2 29.Nd1++- ] 29.Nd5+ 29...Bxd5 30 Qc3+ Kf4 12 Qg3+ Ke4 13 Qf3+ Kd4 14 Qd5+ Ke3 15 Qd3+ Kf4 16 Qf3# 1-0