The independent Alekhine line is 2...d5, known as the Scandinavian Variation. After 2...d5, 3.exd5 Nxd5 4.Bc4, 4...Nb6 or 4...Nxc3 is considered roughly equal, while 4...e6 is solid but blocks in the light-squared bishop. 4.g3 has been played by the Danish correspondence player Ove Ekebjaerg, when Harald Keilhack recommends 4...Nxc3 5.bxc3 Qd5! 6.Qf3! (6.Nf3 Qe4+ is awkward in light of 7.Be2 Bh3 or 7.Qe2 Qxc2) Qe6+! 7.Qe2 ("on 7.Be2 or 7.Ne2, 7...Bd7 is unpleasant") Qxe2+ 8.Nxe2 Bd7! 9.Bg2 Bc6 10.0-0 Bxg2 11.Kxg2 Nc6 12.d3 g6 13.Rb1 0-0-0 14.c4 Bg7, when "Black has a rather comfortable position", as in Ekebjaerg–Alcantara Soares, corr. 1989.