Chess Opening Theory/1. d4/1...d5/2. c4/2...e6/3. Nc3/3...Nf6/4. Nf3/4...Be7

= Queen's Gambit Declined =

Three Knights Variation 4...Be7
This position is often reached from the Indian defence after white tries to avoid the Nimzo-Indian through '''1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7'''

Theory Table
'''1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7'''