[%c_effect b5;square;b5;type;Interesting;persistent;true] A spicy move that is better than it looks. Carlsen has tried it before. While this is not what Carlsen's game is most praised for, his contribution to opening theory is not less significant than that of any chess player in history.
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... g8f6  4. f3g5  4... d7d5  5. e4d5 