Chess Opening Theory/1. d4/1...Nf6/1...Nf6/2. Nf3/2...e6/3. e3/3...d5/4.Nf6
< Chess Opening Theory  1. d4  1...Nf6'  



Position in ForsythEdwards Notation(FEN)
rnbqkb1r/ppp2ppp/4pn2/3p4/2PP4/4PN2/PP3PPP/RNBQKB1R 
Theory tableEdit
For explanation of theory tables see theory table and for notation see algebraic notation.
1. d4 Nf6 2.Nf3 e6 3.e3 d5 4.c4