Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. e3

=Slav Defence Declined=

4. e3 ...
Moves: 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 ...

A very quiet move introducing white to a more positional play : Slav Defence, Quiet Variation D11, Quiet Variation, Pin Defence D12 and Schallopp Defence D12.

Theory table
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1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.e3 ...