a) diagram
1...Kh1-f3/wSd5-g2 2.Ke8-e7 Sg2-h4
3.Ke7-g5/wSh4-f6 Kf3-g2 4.Kg5-h4 Se5-f3 #
b) bKe8-->a4
1...Kh1-f3/wSd5-g2 2.Ka4-b4 Sg2-e1
3.Kb4-d2/wSe1-c3 Kf3-g2 4.Kd2-e1 Se5-f3 #
c)=b) wKh1-->h8
1...Kh8-f6/wSe5-g7 2.Ka4-b5 Sg7-e8
3.Kb5-d7/wSe8-c6 Kf6-g7 4.Kd7-e8 Sd5-f6 #
d) wKh1-->a2
1...Ka2-c4/wSd5-b3 2.Ke8-d8 Sb3-a5
3.Kd8-b6/wSa5-c7 Kc4-b3 4.Kb6-a5 Se5-c4 #
e) wKh1-->a1
1...Ka1-c3/wSe5-b2 2.Ke8-d7 Sb2-a4
3.Kd7-b5/wSa4-c6 Kc3-b2 4.Kb5-a4 Sd5-c3 #
f)=e) bKe8-->h4
1...Ka1-c3