Take a look, for example, at lichess.org/training/4170
Obviously, best move is Bb4+, then Qf7x
But the system considers this line as wrong, and expects Qf7+ with mate in 4 or something moves.
There is many other bad tasks.
Obviously, best move is Bb4+, then Qf7x
But the system considers this line as wrong, and expects Qf7+ with mate in 4 or something moves.
There is many other bad tasks.