lichess.org/training/57089
solution is obvious: 1.Qg6+ Ke7 2. Qe6+ Kd8 3. Qd7X
but it is considered wrong,
system expects 1.Qe6+ ... and so on, mate in 5
solution is obvious: 1.Qg6+ Ke7 2. Qe6+ Kd8 3. Qd7X
but it is considered wrong,
system expects 1.Qe6+ ... and so on, mate in 5