Once upon a time I was going through your lessons. Many moons ago In came to one that asked you to find a subtle move made by a world class GM. After a lot of thought I made moves, the response was always-- this is not what the GM did. I asked for the hint. It would only say to find the quiet move made by the GM. After a dozen or so guesses I gave up and have not even given joining Chess.com another thought since.
Evidently, that is untrue.
Once upon a time I was going through your lessons. Many moons ago In came to one that asked you to find a subtle move made by a world class GM. After a lot of thought I made moves, the response was always-- this is not what the GM did. I asked for the hint. It would only say to find the quiet move made by the GM. After a dozen or so guesses I gave up and have not even given joining Chess.com another thought since.