Solution
1.Лf2-a2 ! цугцванг.
1...Фb8-a8
2.Лa2*a8 #
2.Лa2-h2 #
1...Фb8-a7
2.Лa2-h2 #
1...Фb8-h2
2.Лa2*h2 #
1...Фb8-g3
2.Лa2-a8 +
2...Фg3-b8
3.Лa8*b8 #
2...Фg3-g8
3.Лa8*g8 #
1...Фb8-f4
2.Лa2-a8 +
2...Фf4-b8
3.Лa8*b8 #
2...Фf4-f8
3.Лa8*f8 #
1...Фb8-e5
2.Лa2-a8 +
2...Фe5-b8
3.Лa8*b8 #
1...Фb8-d6
2.Лa2-a8 +
2...Фd6-b8
3.Лa8*b8 #
2...Фd6-d8
3.Лa8*d8 #
1...Фb8-c7
2.Лa2-a8 +
2...Фc7-d8
3.Лa8*d8 #
2...Фc7-b8
3.Лa8*b8 #
2...Фc7-c8
3.Лa8*c8 #
1...Фb8-b5
2.Лa2-a8 +
2...Фb5-e8
3.Лa8*e8 #
2...Фb5-b8
3.Лa8*b8 #
2.Лa2-h2 +
2...Фb5-h5
3.Лh2*h5 #
1...Фb8-b6
2.Лa2-h2 +
2...Фb6-h6
3.Лh2*h6 #
2.Лa2-a8 +
2...Фb6-d8
3.Лa8*d8 #
2...Фb6-b8
3.Лa8*b8 #
1...Фb8-b7
2.Лa2-h2 #
1...Фb8-g8
2.Лa2-h2 +
2...Фg8-h7 +
3.Лe7*h7 #
3.Лh2*h7 #
1...Фb8-f8
2.Лa2-h2 +
2...Фf8-h6
3.Лh2*h6 #
1...Фb8-e8
2.Лa2-h2 +
2...Фe8-h5
3.Лh2*h5 #
1...Фb8-d8
2.Лa2-h2 #
1...Фb8-c8
2.Лa2-h2 +
2...Фc8-h3
3.Лh2*h3 #