The most reliable answer. White needs to complete his development ASAP.
1. c2c4  1... e7e5  2. b1c3  2... g8f6  3. g1f3  3... b8c6  4. e2e4  4... f8c5 Black challenges his opponent on his own territory $1 5. f3e5  5... c6e5  6. d2d4  6... c5b4  7. d4e5  7... f6e4  8. d1f3  8... d7d5 [%c_effect d5;square;d5;type;Interesting;persistent;true] A fresh but risky line, according to the Azeri GM.