This was played by Praggnanandhaa in a rapid game.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. d2d3  4... f8e7  5. e1g1  5... e8g8  6. b1c3  6... d7d6  7. a2a4  7... c6a5  8. c4a2  8... a5c6 [%c_effect c6;square;c6;type;Interesting;persistent;true] A curious move. Much more natural is to advance the pawn to c5; no wonder it's the move played most often. But Muzychuk's idea is to take the knight to b4, gaining a tempo thanks to the positional threat of capturing the bishop, and only then to take the pawn to c5.