1.a3-b4!
[ 1.c3-b4? g5-f4 ( 1...e7-d6 2.e3-d4 d6xf4 3.b4-c5 b6-a5 4.f2-e3 f4xd2 5.h2-g3 h4xf2 6.g1xc1 a5-b4 7.c5-b6 c7xa5 8.a3xc5 g5-f4= ) 2.e5xg3 b6-a5 3.b4-c5 e7-d6 4.c5xe7 g7-f6 5.e7xg5 h6xd2 ]
[ 1.e3-f4 g5xe3 2.f2xd4 g7-f6 3.e5xg7 h6xf8 4.g1-f2 e7-d6 5.d4-e5
[ 5.h2-g3 f8-g7 ( 5...d6-c5 6.d4-e5 c5-d4 7.e5-f6 d4xb2 8.a3xc1 b6-c5 9.g3-f4 c5-d4 10.c1-b2 c7-b6 11.f4-g5 ) 6.g3-f4 b6-a5 7.a3-b4 g7-f6 8.f2-e3 c7-b6 9.f4-g5 f6-e5 10.d4xf6 h4-g3 ]
[ 5.a3-b4 f8-g7 6.f2-e3 ( 6.h2-g3 g7-f6 7.g3-f4 b6-a5 8.f2-e3 c7-b6 9.f4-g5 f6-e5 10.d4xf6 h4-g3 ) 6...g7-h6 7.h2-g3 h4xf2 8.e3xg1 h6-g5 9.g1-f2 g5-f4 10.d4-e5 f4-g3 11.f2xh4 d6xf4 ]
5...d6xf4 6.f2-e3 f4xb4 7.a3xa7 c7-b6 8.a7xc5 f8-e7 9.c5-b6 e7-d6 10.b6-a7 d6-e5 ]
1...b6-a5?
[ 1...e7-d6 2.e3-d4 d6xf4 3.b4-c5 f4-e3 4.c5xa7 e3xc5 5.a7-b8 ]
[ 1...g7-f6! 2.e5xg7 h6xf8 3.e3-f4
[ 3.h2-g3 c7-d6 4.g3-f4 ( 4.b4-a5? d6-c5 5.a5xc7 e7-d6 6.c7xe5 g5-f4 7.e3xg5 h4xb2 ) 4...b6-c5 5.f4xh6 c5xa3 6.e3-d4 e7-f6 7.f2-e3 d6-e5 8.h6-g7 ( 8.e3-f4 e5xg3 9.d4-c5 g3-h2 10.c5-b6 h4-g3 11.b6-c7 g3-f2 12.g1xe3 h2-g1= ) 8...f8xh6 9.d4-c5 e5-d4 ]
3...g5xe3 4.f2xd4 e7-d6 5.g1-f2 f8-g7 6.h2-g3 g7-f6 7.g3-f4 b6-a5 8.f4-g5 d6-e5 9.g5xe7 e5-f4 10.d4-c5 f4-g3 11.c5-b6 g3xe1 12.b6xd8 e1-d2 13.c3xe1 a5xc3 14.e7-f8 c3-b2 15.f8-g7 b2-c1 16.d8-c7 c1-e3= ]
2.e5-f6!!
[ 2.b4-c5 g5-f4 3.e5xg3 e7-d6 4.c5xe7 g7-f6 5.e7xg5 h6xb4 ]
[ 2.e3-f4 g5xe3 3.f2xd4 e7-d6 4.e5-f6 g7xe5 5.d4xf6 c7-b6 6.g1-f2 b6-c5 7.f6-e7 c5xa3 8.e7xc5 a5-b4= ]
2...g7xe5 3.e3-f4 e5xe1 2-0

created with Aurora Borealis 3.6