Solution
1...Кр:g1 2.O-O-O#
1...Кg6/Кh5/Кe2/Кe6/Кd5 2.Ф:h2#
1.Ф:f4?? (2.Ф:h2#)
1...Кр:g1 2.O-O-O#
но 1...g:f4!
1.Лf2?? zz
1...Кg6/Кh5/Кe2/Кe6/Кd5 2.Ф:h2#
но 1...Кр:g1!
1.Л:f4?? zz
1...Кр:g1 2.O-O-O#
но 1...g:f4!
1.Лe3?? zz
1...Кg6/Кh5/Кe2/Кe6/Кd5 2.Ф:h2#
но 1...Кр:g1!
1.Крd1?? zz
1...Кg6/Кh5/Кe2/Кe6/Кd5 2.Ф:h2#
но 1...Кр:g1!
1.Крf2! zz
1...Кg6/Кh5/Кe2/Кe6/Кd5 2.Ф:h2#