Решение шахматной задачи №51971

1.Qb4-e7 ! threat: 2.Sf8-g6 + 2...Ke5-d4 3.Qe7-b4 # 2...Bf7*g6 3.Qe7*g7 # 1...Ba1-c3 2.Qe7-g5 + 2...Ke5-d4 3.Bc1-e3 # 2.Qe7*c7 + 2...Ke5-d4 3.Qc7-d6 # 2...Ke5-f6 3.Sf8-h7 # 1...Ke5-d4 2.Sf8*e6 + 2...Kd4-e5 3.Bc1-f4 # 2...Kd4-c3 3.Qe7-a3 # 2...Bf7*e6 3.Qe7*g7 # 1...c7-c5 2.Qe7-d6 + 2...Ke5-f6 3.Sf8-h7 # 1...Sb8-a6 2.Bc1-e3 threat: 3.Sf8-d7 # 3.Qe7-g5 # 2...Sg1-h3 3.Sf8-d7 # 2...Sg1-f3 3.Sf8-d7 # 2...Sa6-c5 3.Qe7-g5 # 2...Sa6-b8 3.Qe7-g5 # 2...Bf7-g6 3.Sf8-d7 # 3.Sf8*g6 # 3.Qe7*e6 # 3.Qe7*g7 # 2...Bf7-e8 3.Qe7-g5 # 3.Qe7*e6 # 3.Qe7*g7 # 1...Sb8-c6 2.Bc1-e3 threat: 3.Sf8-d7 # 3.Qe7-g5 # 2...Sg1-h3 3.Sf8-d7 # 2...Sg1-f3 3.Sf8-d7 # 2...Sc6-d4 3.Sf8-d7 # 2...Sc6*e7 3.Sf8-d7 # 2...Sc6-b8 3.Qe7-g5 # 2...Bf7-g6 3.Sf8-d7 # 3.Sf8*g6 # 3.Qe7*e6 # 3.Qe7*g7 # 2...Bf7-e8 3.Qe7-g5 # 3.Qe7*e6 # 3.Qe7*g7 # 1...Sb8-d7 2.Sf8*d7 + 2...Ke5-d4 3.Qe7-b4 # 2.Bc1-e3 threat: 3.Sf8*d7 # 3.Qe7-g5 # 2...Sg1-h3 3.Sf8*d7 # 2...Sg1-f3 3.Sf8*d7 # 2...Sd7-c5 3.Qe7-g5 # 2...Sd7-f6 3.Qe7*c7 # 2...Sd7*f8 3.Qe7-g5 # 2...Sd7-b8 3.Qe7-g5 # 2...Bf7-g6 3.Sf8*d7 # 3.Sf8*g6 # 3.Qe7*e6 # 2...Bf7-e8 3.Qe7-g5 # 3.Qe7*e6 #