1. d2d4  1... g8f6  2. g1f3  2... g7g6  3. c2c4  3... f8g7  4. b1c3  4... d7d5  5. h2h3 A favorite line of German  GM Bluebaum, used as well by a number of modern, young grandmasters. White takes control of the important g4-square in advance, thus securing his  center. 5... e8g8  6. c4d5  6... f6d5  7. e2e4  7... d5c3  8. b2c3  8... c7c5  9. f1e2  9... c5d4  10. c3d4  10... b8c6  11. c1e3  11... d8a5  12. e3d2  12... a5a3  13. d4d5 The most standard exchange sacrifice in this opening  line, which Van Foreest wisely turns down. 13... c6e5  14. e1g1 This is the latest trend that now scores much better than the  old 14.Nxe5 line, according to Megabase. 14... c8d7  15. a1b1 