1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f8e7  6. f1e1  6... b7b5  7. a4b3  7... e8g8  8. c2c3  8... d7d5 After Frank Marshall unsuccessfully introduced his pet line  against Capablanca in 1918 in New York, it has grown stronger and  stronger. Nowadays, thanks to the rise of the computers, it is considered  one of the safest choices by Black. One of the gurus of the line is Levon  Aronian himself. 9. e4d5  9... f6d5 