Решение шахматной задачи №62175
Мат в 4 хода |
a)
1.Be6-g8 ! threat:
2.Bg8-e6 zugzwang.
2...Ke4-f3
3.Be6-d5 #
2...Ke4-d3
3.Be6-f5 #
1...Ke4-f5
2.Bg8-f7 zugzwang.
2...Kf5-e4
3.Bf7-e6 zugzwang.
3...Ke4-f3
4.Be6-d5 #
3...Ke4-d3
4.Be6-f5 #
b) shift a1 ==> a2
1.Ke2-e1 ! threat:
2.Ke1-e2 zugzwang.
2...Ke5-f4
3.Be7-d6 #
2...Ke5-d4
3.Be7-f6 #
1...Ke5-f4
2.Ke1-f2 threat:
3.Be7-d6 #
2...Kf4-e5
3.Kf2-e2 zugzwang.
3...Ke5-f4
4.Be7-d6 #
3...Ke5-d4
4.Be7-f6 #
1...Ke5-d4
2.Ke1-d2 threat:
3.Be7-f6 #
2...Kd4-e5
3.Kd2-e2 zugzwang.
3...Ke5-f4
4.Be7-d6 #
3...Ke5-d4
4.Be7-f6 # |