Introduction to Trompowsky Attack and Levitsky Attack:
Wikipedia about Trompowsky Attack
Collier - Gashimov, Caleta 2009
Ivanchuk - Polgar, Moscow 2009
Arbouche - Akobian, Turin 2006
Stefanova - Socko, Caleta 2009
Andreikin - Bologan, Moscow 2010
Razik - Gopal, Bursa 2010
More games with 1.d4 Nf6 2.Bg5 (Chessgames.com)
Levitsky Attack (1.d4 d5 2.Bg5)
If black plays 2...Nf6, then we have a position known from Trompowsky Attack after 1.d4 Nf6 2.Bg5 d5.
Wikipedia about Stefan Levitsky and his Levitsky Attack
Kramnik - Gelfand, Moscow 2008
Sergeev - Tregubov, Warsaw 2005
Adams - Morozevich, Tilburg 1993
More games with 1.d4 d5 2.Bg5 (Chessgames.com)
Wikipedia about Trompowsky Attack
Collier - Gashimov, Caleta 2009
Ivanchuk - Polgar, Moscow 2009
Arbouche - Akobian, Turin 2006
Stefanova - Socko, Caleta 2009
Andreikin - Bologan, Moscow 2010
Razik - Gopal, Bursa 2010
More games with 1.d4 Nf6 2.Bg5 (Chessgames.com)
Levitsky Attack (1.d4 d5 2.Bg5)
If black plays 2...Nf6, then we have a position known from Trompowsky Attack after 1.d4 Nf6 2.Bg5 d5.
Wikipedia about Stefan Levitsky and his Levitsky Attack
Kramnik - Gelfand, Moscow 2008
Sergeev - Tregubov, Warsaw 2005
Adams - Morozevich, Tilburg 1993
More games with 1.d4 d5 2.Bg5 (Chessgames.com)