Mentor Lesson EOT097, Rook and King-Pawn vs. King, labeled as incorrect a perfectly valid and immediately successful move.
The "correct" move was Kb8, yet Kc6 was a perfectly valid response. The lesson even recognizes that Kc6 is valid. Lessons should label such a move as "Alternative", not as "incorrect."
This is especially true as in another lesson (albeit one I do not know the name of by heart), Kc6 was the "correct" move in the same situation.
Mentor Lesson EOT097, Rook and King-Pawn vs. King, labeled as incorrect a perfectly valid and immediately successful move.
The "correct" move was Kb8, yet Kc6 was a perfectly valid response. The lesson even recognizes that Kc6 is valid. Lessons should label such a move as "Alternative", not as "incorrect."
This is especially true as in another lesson (albeit one I do not know the name of by heart), Kc6 was the "correct" move in the same situation.