comment: I've played this move twice during my career, once against renowned GM, coach, and opening expert Rustam Kasimdzhanov.
context: 1. c2c4  1... e7e6  2. b1c3  2... d7d5  3. c4d5  3... e6d5  4. d2d4  4... f8e7  5. c1f4  5... c7c6  6. e2e3  6... c8f5 