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Chess Opening Theory/1. d4/1...d5/2. Nf3
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Queen's Pawn Opening Queen's Pawn Opening
2. Nf3
A flexible developing move. While this move usually leads to a Queen's Gambit, it is also used to go into a Colle System—a solid line that prepares e2-e4 earlier and can be more aggressive than the usual lines.
Black can develop a number of ways, though /2...Nf6/ is most common due to its flexibility.
Theory table
Colle system 2. ... Nf6 3. e3 Queen's gambit declined 2. ... e6 3. c4 Nf6 Slav defence 2. ... c6 3. c4 Nf6 Krause variation 2. ... c5 3. c4 2. ... f5
References
See also
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