a) diagram
1.Kd5-d6 Lg4*g3-g2[+bGg4]
2.Kd6-c7 Lg2*g4-g5[+bGg2]
3.Gc6-c8 Lg5*d2-c1[+bGg5]
4.Kc7-b7 Lc1*g5-h6[+bGc1]
5.Gf7-a7 Lh6*g7-f8[+bGh6]
6.Kb7-a8 Lf8*c8-b8[+bGf8] =
b) bKd5-->e3
1.Gd2-f4 Lg4*g3-g2[+bGg4]
2.Gf7-f3 Lg2*g4-g5[+bGg2]
3.Ke3-f2 Lg5*g7-g8[+bGg5]
4.Kf2-g1 Lg8*g5-g4[+bGg8]
5.Kg1-h1 Lg4*f3-e2[+bGg4]
6.Gg4-g1 Le2*g2-h2[+bGe2] =
c) bGg7-->b4
1.Kd5-e5 Lg4*b4-a4[+bGg4]
2.Ke5-f6 La4*c6-d7[+bGa4]
3.Kf6-g7 Ld7*g4-h3[+bGd7]
4.Gf7-h7 Lh3*h7-h8[+bGh3] +
5.Kg7*h8[+wLg7] Lg7*d7-c7[+bGg7]
6.Gg3-g8 Lc7*g7-h7[+bGc7] =
d)=c) wLg4-->c7
1.Kd5-c4 Lc7*f7-g7[+bGc7]
2.Kc4-b3 Lg7*g3-g2[+bGg7]
3.Gb4-b2 Lg2*d2-c2[+bGg2] +
4.Kb3-a2 Lc2*g2-h2[+bGc2]
5.Ka2-a1 Lh2*c7-b8[+bGh2]
6.Gc2-a2 Lb8*b2-b1[+bGb8]