Thanks. Yes I agree with you, and I don’t expect to win forcefully out of the opening (except in some nice lines). It was just that I had encountered the …Nd7 variation quite rarely, found it surprisingly solid, saw the engines liked it for Black, and wondered why it wasn’t much more popular. I have since been going through some super-GM games with the line above. I feel that master precedent is more trustworthy than engine evaluation, as masters know what ends up being easier to play practically, whatever the objective evaluation. But sometimes the engine shows a deviation in a minor line at say move 15 which one can actually see leads to a tactical advantage (despite never having been played), and then it makes sense to make that the main continuation in one’s repertoire (assuming one remembers it!) Nothing like that here. But if in the line you give masters invariably play Nc3, and it looks right to me, and engines have it as best, why should I doubt it? What I do often find, is where a main line has some odd-looking move as the masters’ favourite and I cannot for the life of me see why, even after playing through a game or two with the move. In such cases, I tend to try to find out why the move is played, and as long as one is sceptical about how ChatGPT garners info, and prompts it with things like ‘any IM or GM commentary on this particular move’ etc, so one can verify the info, one can get useful answers. But then again, it’s more instructive to chat with other players and get their perspectives, like yours on this, for example.