 Grischuk was in must-win situation and the opening definitely suited him.
1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4e5  3... c8f5  4. b1c3  4... e7e6  5. g2g4  5... f5g6  6. g1e2  6... c6c5  7. h2h4 