Custom Chess Theory/1.d4/1...c6/2.Bf4

2. Bf4 — Autenaś Opening 2. Bf4 develops the bishop outside the pawn chain and gives White an active setup. White aims to control the center while keeping the c1-bishop on a useful diagonal. 2...d5 establishes a solid central position for Black. White can continue with 3. e3, preparing to develop the kingside bishop and castle. 2...d6 will turn into the Autenaś Defence 2...Nf6 develops naturally and puts pressure on the e4-square. White can respond with 3. e3 or 3. Nc3. 3. e3 supports the d4-pawn and opens the f1-bishop's diagonal. 3. Nc3 develops another piece and strengthens White's control of the center. Downsides: The main drawback of 2.Bf4 is that White develops the bishop before deciding how to build the rest of the center. Black can use 2...Nf6 to establish a solid position and challenge White's setup. An independent line is 1. d4 c6 2. Bf4.The Autenaś Opening is characterized by 1. d4 c6 2. Bf4.