context: 1. b1c3 Firouzja has played this move even in standard chess (see below), so why not in rapid $2 1... c7c5  2. d2d4  2... c5d4  3. d1d4  3... b8c6  4. d4a4  4... e7e6  5. e2e4 It is an original Sicilian now. 5... f8c5  6. g1f3  6... d7d6 A novelty as early as move six. 7. e4e5 Firouzja wants to justify the position of his queen, but this comes at the expense of his development.