Thrust ----- 2a1 4b1 4c2 4e2 4- 4d2 4c2 4a1 4- 4c2 4e2 8d2 8- 8d2 8- 8c2 2b1 2a1 4c2 4e2 4g2 4- 4f2 4e2 4c2 4- 4e2 4f2 8d2 8- 8d2 8- 8c2 2b1