[ 1...f8xb8 2.b2-c1 b8-c7 3.c5-b6 c7-d6 4.b6-c7 d6xb8 5.f4-e5 b8-c7 ( 5...a5-b4 6.c3xa5 b8-c7 7.a5-b6 c7xa5 8.d2-f4 a5-b4 9.c1-a3 b4-c3 10.a1-b2 c3xa1 11.a7-e3 a1xh8 12.a3-b2 h8xa1 13.f2-e1 h4xd4 14.e1-c3 d4xb2 15.f4-c1 x ) 6.c3-b4~ a5xe1 7.e5-d6~ c7xe5 8.a7-d4 e5xc3 9.c1-d2 c3-b2 10.a1xc3 x ]