[ 1...b2-a1 2.a7-b6 a1xg7 3.h8xf6 b8-a7 4.b6-a5 a7-b6 5.a3-b4 b6-c5 6.b4-c3 c5xe7 7.c3-e5 e7-d6 8.c7-b8 d6-c5 9.d8-b6 c5xa7 10.e5-c7 a7-b6 11.c7-d8 b6-c5 12.d8-b6 c5xa7 13.f4-c7 a7-b6 14.c7-g3 b6-c5 15.a5-b6 c5xa7 16.d2-e3 a7-b6 17.g5-h6 b6-c5 18.f6-d4 c5-b4 19.d4-c3 b4xh2 20.h6-e3 h2-g1 21.b8-h2 x ]