Решение шахматной задачи №70013
Мат в 4 хода |
a)
1.Sf6-h5 ! zugzwang.
1...Ke6-f7
2.Ke4-f5 zugzwang.
2...Kf7-g8
3.Bb5-e8 threat:
4.Sd5-f6 #
b) wBg7-->f8
1.Sf6-h7 ! threat:
2.Sh7-g5 #
1...Ke6-f7
2.Sd5-f6 threat:
3.Ke4-f5 threat:
4.Bb5-e8 #
2...Kf7-e6
3.Bb5-c4 +
3...d6-d5 +
4.Bc4*d5 #
c) wSd5-->d7
1.Bg7-f8 ! threat:
2.Bb5-c4 +
2...d6-d5 +
3.Bc4*d5 #
1...d6-d5 +
2.Ke4-f4 zugzwang.
2...Ke6-f7
3.Kf4-f5 zugzwang.
3...d5-d4
4.Bb5-c4 #
2...d5-d4
3.Bb5-c4 #
1...Ke6-f7
2.Ke4-f5 threat:
3.Bb5-e2 threat:
4.Be2-h5 #
3.Bb5-c4 +
3...d6-d5
4.Bc4*d5 #
3.Bb5-c6 threat:
4.Bc6-d5 #
2...d6-d5
3.Bb5-a4 zugzwang.
3...d5-d4
4.Ba4-b3 #
3.Bb5-f1 zugzwang.
3...d5-d4
4.Bf1-c4 #
3.Bb5-e2 threat:
4.Be2-h5 #
3.Bb5-d3 zugzwang.
3...d5-d4
4.Bd3-c4 #
3.Bb5-c6 threat:
4.Bc6*d5 #
3.Bb5-a6 zugzwang.
3...d5-d4
4.Ba6-c4 #
d) rotate 180
1.Bg4-d1 ! zugzwang.
1...e3-e2
2.Sc3*e2 threat:
3.Se2-f4 +
3...Kd3-e3
4.Bb2-c1 #
2...Kd3-e3
3.Bb2-c1 +
3...Ke3-d3
4.Se4-f2 #
4.Se4-c5 #
4.Se2-f4 #
3...Ke3-f3
4.Se2-f4 # |