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www.chesslive.de. They have a very strong database. It's free and an excellent resource. Both games in question can be found there.

[Event "Graested"]

[Date "1990.02.??"]

[White "Vasiukov,Evgeni"]

[Black "Levitt,Jonathan"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.Be2 Nge7 7.0-0 Nf5 8.Bd3 Nh4 9.Nxh4 Qxh4 10.Be3 Qd8 11.Nd2 Qb6 12.Nf3 c4 13.Bc2 Qxb2 14.Qd2 Qb6 15.Ng5 h6 16.Nh3 0-0-0 17.Nf4 Be7 18.Nh5 Rdg8 19.Rfb1 Qd8 20.a4 Na5 21.Qd1 g6 22.Nf4 h5 23.Bc1 Kb8 24.Ba3 Bxa3 25.Rxa3 Qe7 26.Ra2 Rc8 27.Qf3 Rhd8 28.Rab2 Be8 29.g3 Rc6 30.h4 Ra6 31.Nh3 Rc8 32.Ng5 Rc7 33.Kh2 Nb3 34.Bxb3 cxb3 35.Rxb3 Rxa4 36.Qe2 Ra3 37.Qb2 Rxb3 38.Qxb3 Rc6 39.Re1 a5 40.Ra1 Ra6 41.Ra3 Bc6 42.f3 Kc7 43.Qa2 b6 44.Nh7 Bb5 45.Nf6 Bc4 46.Qa1 Kb7 47.g4 Ra8 48.Kg3 Rh8 49.Qb2 Ka6 50.Qc1 hxg4 51.fxg4 Qf8 52.Ra1 Qh6 53.Qxh6 Rxh6 54.h5 g5 55.Kf3 b5 56.Ke3 a4 57.Ne8 Ka5 58.Nd6 Rh7 59.Kd2 Kb6 60.Rh1 Kc6 61.h6 a3 62.Kc2 Kb6 63.Kb1 Kc7 64.Nxc4 bxc4 65.Ka2 f6 66.Kxa3 fxe5 67.dxe5 Kd7 68.Rh5 Kc6 69.Kb4 1/2

[Event "Badenweiler op"]

[Date "1990.10.??"]

[White "Kupreichik,Viktor D"]

[Black "Levitt,Jonathan"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.Be2 Nge7 7.0-0 Nf5 8.Bd3 Nh4 9.Ng5 cxd4 10.cxd4 Nxd4 11.Qh5 Ng6 12.Nc3 Nxe5 13.Nxe6 Nef3+ 14.gxf3 Bxe6 15.Kg2 Be7 16.Re1 Qd7 17.Bf4 h6 18.Nb5 Nxb5 19.Bxb5 Qxb5 20.Rxe6 Kf8 21.Qf5 Qd7 22.Rxh6 Qxf5 23.Rxh8+ 1-0

List members might also be interested to learn that Kupreichik and Levitt had a "conversation" in this line two years earlier, though the result was the same:

[Event "Copenhagen op"]

[Date "1988.06.??"]

[White "Kupreichik,Viktor D"]

[Black "Levitt,Jonathan"]

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Bd7 6.Be2 Nge7 7.0-0 Nf5 8.Bd3 Nh4 9.Nxh4 Qxh4 10.Be3 cxd4 11.cxd4 Bb4 12.a3 Ba5 13.g3 Qe7 14.Nc3 f5 15.b4 Bb6 16.Bc2 0-0 17.Qd2 Be8 18.Ne2 Bh5 19.f3 Rac8 20.Rac1 Rc7 21.Kg2 Rfc8 22.Bb3 Bf7 23.h3 a5 24.b5 a4 25.bxc6 axb3 26.cxb7 Rb8 27.Rxc7 Bxc7 28.Qb2 Rxb7 29.Bd2 Qd7 30.Bb4 Qb5 31.Rc1 h6 32.Kf2 Be8 33.Qxb3 Qa6 34.Nf4 Bb5 35.h4 Bc4 36.Qe3 Kf7 37.g4 fxg4 38.fxg4 Bd8 39.Kg3 g5 40.Nh3 gxh4+ 41.Kh2 Kg7 42.Rg1 Bf1 43.g5 Qd3 44.gxh6+ Kh7 45.Qxd3+ Bxd3 46.Nf4 Bf5 47.Nh5 Kxh6 48.Nf6 Bxf6 49.exf6 Rc7 50.Bd6 Rc2+ 51.Rg2 Rxg2+ 52.Kxg2 e5 53.f7 1-0