[ 15.g1-f2 g7-h6 ( 15...f6-e5 16.g3-f4 e5xg3 17.f2xh4 g7-f6 18.e1-f2 f6-e5 19.f2-g3 e5-d4 20.e3-f4 h8-g7 21.h4-g5 g7-h6 22.g5-f6 d6-e5 23.b4xd6 e5xg7 24.a3-b4 c7xe5 25.f4xd6 g7-f6 ) 16.g3-h4 ( 16.g3-f4 ; 16.b2-c3 ) 16...f6-e5 17.e1-d2 17...h8-g7 18.h4-g5 h6xf4 19.e3xg5 a7-b6 20.g5-h6 20...g7-f6 21.f2-g3 e5-d4 22.b2-c3! d4xb2 23.a3xc1 c5xa3 24.d2-e3 b6-c5 25.g3-f4 b8-a7 26.f4-g5 f6xh4 27.e3-f4! c5-d4 28.h6-g7 d4-e3 29.f4xd2 h4-g3 30.g7-h8 g3-h2 31.d2-e3 ]

[ 15.g3-f4 g7-h6! 16.b2-c3 a7-b6 17.g1-f2 f6-g5 ( 17...h8-g7? 18.f2-g3 c5-d4 19.e3xg5 b6-c5 20.b4xd6 c7xe5 21.f4xd6 h6xh2 22.d6-e7 h2-g1 23.e7-f8 g7-h6 24.f8-d6 ) 18.f2-g3 d6-e5 ( 18...g5-h4 19.c3-d4 h4xf2 20.e1xg3 h8-g7 21.d4-e5 h6-g5 22.f4xf8 d6xh2 23.b4xd6 c7xe5 24.a5xc7 b8xd6 25.f8xc5 ) 19.f4xd6 ( 19.b4xd6 b6-c5 20.d6xb4 g5-h4 21.f4xd6 h4xb2 22.a3xc1 c7xe5 ) 19...c7xe5 20.b4xf4 g5-h4 21.a5xc7 h4xb2 22.a3xc1 b8xd6 ]

[ 15.g3-h4 g7-h6! ( 15...f6-g5? 16.h4xf6 g7xe5 17.e1-f2 h8-g7 18.f2-g3 g7-h6 19.e3-f4 e5-d4 20.g1-f2 a7-b6 21.g3-h4 h6-g5 22.h4xf6 d6-e5 23.f4xd6 c5xg5 24.b4-c5 d4-e3 25.f2xd4 g5-f4 26.c5xa7 ; 15...a7-b6? 16.g1-h2 g7-h6 17.b2-c3 f6-e5 18.e3-f4 e5xg3 19.h2xf4 d6-e5 20.f4xd6 c5xe7 21.c3-d4 e7-f6 22.b4-c5 f6-e5 23.d4xf6 b6xd4 24.a3-b4 d4-e3 25.b4-c5 b8-a7 26.f6-e7 ) 16.e1-d2 ( 16.b2-c3 f6-e5 17.c3-d4 e5xc3 18.b4xd2 ) 16...h8-g7 17.e3-f4 c5-d4 18.d2-c3 d6-c5 19.c3xe5 f6xd4 20.b4xd6 c7xg3 21.h4xf2 g7-f6 22.b2-c3 d4xb2 23.a3xc1 f6-e5 24.f2-e3 ]

[ 15...c7-b6 16.a5xe5 f6xb2 17.a3xc1 c5xa3 18.g3-h4 g7-f6 19.e3-f4 b8-c7 20.f4-g5 f6-e5 21.g5-h6 a7-b6 22.h4-g5 b6-c5 23.e1-d2 c5-b4 24.g1-h2 e5-d4 ]

[ 15...g7-h6? 16.e1-f2 a7-b6 17.g3-h4 h8-g7 18.f2-g3 18...f6-e5 19.c3-d4 e5xc3 20.b4xd2 d6-e5 21.g1-h2 b8-a7 22.e3-f4 e5-d4 23.d2-c3 d4xb2 24.a3xc1 ]

[ 15...a7-b6? 16.g3-h4 f6-e5 17.c3-d4 e5xc3 18.b4xd2 d6-e5 19.h4-g5 g7-h6 20.e3-f4 e5xg3 21.g5-f6 c5-d4 22.f6-e7 g3-h2 23.e7-f8 ]

[ 16.c3-d4 e5xc3 17.b4xd2 d6-e5 18.a5-b6? c7xa5 19.e3-f4 e5-d4 ( 19...a5-b4? 20.f4xd6 c5xe7 21.a3xc5 g7-f6 22.g3-f4 h8-g7 23.d2-c3 g7-h6 24.e1-f2 f6-g5 25.c3-d4 g5xe3 26.c5-d6 ) 20.f4-g5 b8-c7 21.g3-h4 g7-h6? ( 21...c7-d6 22.g5-h6 g7-f6 23.h6-g7 f6-e5 24.g7-f8 d4-e3 25.d2xf4 e5xg3 26.h4xf2 d6-e5 27.f8xb4 a5xc3 28.f2-e3 a7-b6 29.e3-d4 c3-b2 30.d4xf6 b2-a1 ) 22.g5-f6 h6-g5 ( 22...c7-d6 23.h4-g5 h6xf4 24.d2-e3 f4xd2 25.e1xc7 c5-d4 26.g1-f2 d4-c3 27.c7-d8 a5-b4 28.a3xc5 c3-b2 29.f6-e7 b2-c1 30.e7-f8 c1-f4 31.f8-g7 h8xf6 32.d8xc1 ) 23.f6-e7 c7-d6 24.h4xf6 d6xf8 25.d2-e3 d4xf2 26.g1xe3 f8-g7 ( 26...a7-b6 27.e1-d2 a5-b4 28.e3-f4 ; 26...a5-b4 27.f6-e7 f8xd6 28.e3-d4 c5xe3 29.a3xe7 ) 27.f6-e7 g7-f6 28.e7xg5 a5-b4 29.e3-d4 c5xe3 30.a3xc5 h8-g7 31.c5-d6 a7-b6 32.g5-h6 g7-f6 33.d6-e7 f6xd8 34.h6-g7 ]

[ 18...g7-f6 19.h2xf4 h8-g7 ( 19...d6-e5 20.f4xd6 c7xc3 21.b4xd6 h8-g7 22.a5xc7 f6-e5 23.d6xf4 b8xd6 24.f4-g5 d6-c5 25.g5-h6 g7-f6 26.e1-f2 c5-d4 27.e3xc5 c3-d2 28.c5-b6 d2-c1 29.b6-c7 f6-g5 30.h6xf4 c1xh6 31.c7-d8 h6-g7 ) 20.e1-f2 d6-e5 21.f4xd6 c7xc3 22.b4xd6 f6-e5 23.a5xc7 g7-f6 24.d6xf4 b8xd6 25.f2-g3 f6-e5 ( 25...d6-c5 26.g3-h4 c5-b4 27.a3xc5 c3-b2 28.c5-b6 b2-c1 29.b6-c7 f6-e5 30.f4xd6 c1xh6 ) 26.g3-h4 e5xg3 27.h4xf2 d6-c5 28.f2-g3 c5-b4 29.a3xc5 c3-b2 ]

[ 27...f2-g1? 28.d8-a5 d4-e3 29.a5-c3 e3-d2 30.c3xe1 g1-d4 31.b8-f4 ]

[ 28...d4-e3 29.b8-h2 a7-b6 ( 29...e3-d2 30.e7-c5 ) 30.e7-f6 e1-a5 31.h2-b8 a5-e1 ]