Решение шахматной задачи №86939
Мат в 4 хода |
1.f7-f8=R ! threat:
2.Rf8*a8 +
2...Ka7*a8
3.Kc6-b6 threat:
4.e7-e8=Q #
4.e7-e8=R #
2.e7-e8=R threat:
3.Re8*a8 #
2...Ra8*e8
3.Rf8*e8 zugzwang.
3...Ka7-a6
4.Re8-a8 #
2...Ra8-d8
3.Re8*d8 threat:
4.Rd8-a8 #
2...Ra8-c8 +
3.Re8*c8 threat:
4.Rc8-a8 #
2...Ra8-b8
3.Re8*b8 threat:
4.Rb8-a8 #
1...Ra8-b8
2.Rf8*b8 threat:
3.Rb8-c8 zugzwang.
3...Ka7-a6
4.Rc8-a8 #
3.Rb8-h8 zugzwang.
3...Ka7-a6
4.Rh8-a8 #
3.Rb8-g8 zugzwang.
3...Ka7-a6
4.Rg8-a8 #
3.Rb8-f8 zugzwang.
3...Ka7-a6
4.Rf8-a8 #
3.Rb8-e8 zugzwang.
3...Ka7-a6
4.Re8-a8 #
3.Rb8-d8 zugzwang.
3...Ka7-a6
4.Rd8-a8 #
3.e7-e8=Q threat:
4.Rb8-a8 #
3.e7-e8=R threat:
4.Rb8-a8 #
2...Ka7*b8
3.Kc6-b6 threat:
4.e7-e8=Q #
4.e7-e8=R #
3...Kb8-c8
4.e7-e8=Q # |