a)diagram sh#8 2 sol
1.Gb1-b3 2.Ga2-c4 3.Gb3-d5 4.Gd5-f7 5.Ke6-f6
6.Kf6-g7 7.Gf7-h7 8.Kg7-h8 d2-d4 #
1.Ga2-f7 2.Ke6-f6 3.Gf7-f5 4.Kf6-g5 5.Kg5-g4
6.Gf5-h3 7.Kg4-g3 8.Kg3-g2 Ke2-f3 #
b)bKe6-->c6 sh#/=6 1 + 1 sol
1.Bg8-b3 2.Ga2-c4 3.Kc6-c5 4.Gc4-c6 5.Kc5-c4
6.Gc6-c3 d2-d3 #
1.Gb1-b3 2.Ga2-c4 3.Gb3-d5 4.Gc4-e6 5.Gd5-f7
6.Ge6-e1 Ke2*e1 =