Решение шахматной задачи №77499

1.Ke8-d7 ! threat: 2.Kd7-c8 threat: 3.Rb7-b8 # 1...Se6-c5 + 2.Kd7-c8 threat: 3.Rb7-b8 # 2...Sc5-d7 3.Kc8-c7 zugzwang. 3...Sd7-b8 4.Rb7*b8 # 3...Sd7-b6 4.Rb7-b8 # 3...Sd7-c5 4.Rb7-b8 # 3...Sd7-e5 4.Rb7-b8 # 3...Sd7-f6 4.Rb7-b8 # 3...Sd7-f8 4.Rb7-b8 # 2...Sc5*b7 3.a6*b7 # 2...Sc5*a6 3.Rb7-b5 zugzwang. 3...Sa6-b4 4.Rb5-b8 # 3...Sa6-c5 4.Rb5-b8 # 3...Sa6-c7 4.Rb5-b8 # 3...Sa6-b8 4.Rb5*b8 # 1...Se6-d4 2.Kd7-c8 threat: 3.Rb7-b8 # 2...Sd4-c6 3.Kc8-c7 zugzwang. 3...Sc6-b8 4.Rb7*b8 # 3...Sc6-a5 4.Rb7-b8 # 3...Sc6-b4 4.Rb7-b8 # 3...Sc6-d4 4.Rb7-b8 # 3...Sc6-e5 4.Rb7-b8 # 3...Sc6-e7 4.Rb7-b8 # 3...Sc6-d8 4.Rb7-b8 # 2.Rb7-c7 threat: 3.Rc7-c8 # 2...Sd4-c6 3.Rc7*c6 threat: 4.Rc6-c8 # 1...Se6-f8 + 2.Kd7-c8 threat: 3.Rb7-b8 # 2...Sf8-d7 3.Kc8-c7 zugzwang. 3...Sd7-b8 4.Rb7*b8 # 3...Sd7-b6 4.Rb7-b8 # 3...Sd7-c5 4.Rb7-b8 # 3...Sd7-e5 4.Rb7-b8 # 3...Sd7-f6 4.Rb7-b8 # 3...Sd7-f8 4.Rb7-b8 # 2.Kd7-d8 zugzwang. 2...Sf8-g6 3.Kd8-c7 threat: 4.Rb7-b8 # 2...Sf8-d7 3.Kd8-c7 zugzwang. 3...Sd7-b6 4.Rb7-b8 # 3...Sd7-c5 4.Rb7-b8 # 3...Sd7-e5 4.Rb7-b8 # 3...Sd7-f6 4.Rb7-b8 # 3...Sd7-f8 4.Rb7-b8 # 3...Sd7-b8 4.Rb7*b8 # 2...Sf8-e6 + 3.Kd8-c8 threat: 4.Rb7-b8 # 2...Sf8-h7 3.Kd8-c8 threat: 4.Rb7-b8 # 3.Kd8-c7 threat: 4.Rb7-b8 # 3.Rb7-c7 threat: 4.Rc7-c8 # 1...Se6-d8 2.Kd7-c8 threat: 3.Rb7-b8 # 2...Sd8*b7 3.a6*b7 # 2...Sd8-c6 3.Kc8-c7 zugzwang. 3...Sc6-b8 4.Rb7*b8 # 3...Sc6-a5 4.Rb7-b8 # 3...Sc6-b4