All ECO Codes
\
D02
Queen's Pawn Game
1.d4 d5 2.Nf3
D02
Queen's Pawn Game
Chigorin Variation
1.d4 d5 2.Nf3 Nc6
D02
Queen's Pawn Game
Krause Variation
1.d4 d5 2.Nf3 c5
D02
Queen's Pawn Game
1.d4 d5 2.Nf3 Nf6
D02
Queen's Bishop Game
1.d4 d5 2.Nf3 Nf6 3.Bf4