Ответ
1.Лa4-a5 ! угроза:
2.Лa5-h5 #
1...Сb7-d5
2.Лa5-c5 цугцванг.
2...Сd5-c6
3.Лc5-h5 #
2...Сd5*b3
3.Лc5-h5 #
2...Сd5-c4
3.Лc5-h5 #
2...Сd5-h1
3.Лc5-h5 #
2...Сd5-g2
3.Лc5-h5 #
2...Сd5-f3
3.Лc5-h5 #
2...Сd5-e4
3.Лc5-h5 #
2...Сd5-g8
3.Лc5-h5 #
2...Сd5-f7
3.Лc5-c2 угроза:
4.Лc2-h2 #
2...Сd5-e6
3.Лc5-h5 #
2...Сd5-a8
3.Лc5-h5 #
2...Сd5-b7
3.Лc5-h5 #