Grandelius gains space on the queenside, thus limiting the opponent's light-squared bishop. [#]
1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. d2d3  5... d7d6  6. c2c3  6... g7g6  7. e1g1  7... f8g7  8. f1e1  8... e8g8  9. b1d2  9... f8e8  10. d2f1  10... b7b5 The alternative is 10...h6 and it seems as it pushes to become the main line. 11. a4c2 