Played only twice before.
1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4e5  3... c8f5  4. h2h4 A fashionable variation, suggested by GM Gajewski in his excellent 1.e4 course. 4... d8b6 Much less common than 4...h5 and 4...h6. It doesn't look like a reliable move. 5. a2a4 Another move that is not the most popular, but is recommended by Gajewski. 5... a7a5 Stopping the white pawn.