1. c2c4  1... g8f6  2. g1f3  2... d7d6 Already a surprise. Caruana plays the KID very, very  rarely. 3. d2d4  3... g7g6  4. b1c3  4... f8g7  5. e2e4  5... e8g8  6. f1e2  6... e7e5  7. e1g1  7... c8g4 This is what the American wanted to try, a relatively fresh  line. 8. c1e3  8... g4f3 The main point behind Black's idea. He wins a few tempi  chasing the enemy bishops back. 9. e2f3  9... e5d4  10. e3d4  10... b8c6 