@7921
"winning lines are irrelevant"
++ This indeed is an important observation.
All legal chess positions fall into 3 classes: draws, white wins, black wins.
For all positions with 7 men or less the 7-men endgame table base tells us which class those positions belongs to.
We also know that the initial position is a draw.
So weakly solving chess involves hopping from the drawn initial position to other drawn positions and finally to a 7-men endgame table base draw.
So of all legal positions only the drawn positions are relevant to weakly solving chess.
The white wins are pitfalls black must avoid, and the black wins are pitfalls white must avoid.
Obvious pitfalls for white i.e. black wins are:
1 g4? 1 e4 e5 2 Ba6? 1 e4 e5 2 Nf3 Nc6 3 Nxe5?, 3 Nd4? 3 Ng5? 3 Nh4?, 3 Ba6?
Also some logically inferior moves like
1 a4, 1 Na3, 1 e4 e5 2 Nf3 Nc6 3 Ng1 are not relevant either.
To weakly solve Chess only one black response that draws is needed.
Probably 1 e4 e5 and 1 e4 c5 draw as well,
but we only need one to weakly solve Chess, so the other is not relevant.
Probably 1 e4 e5 2 Nf3 Nc6 and 1 e4 e5 2 Nf3 Nf6 draw as well,
but we only need one to weakly solve Chess, so the other is not relevant.
Probably 1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6 and 1 e4 e5 2 Nf3 Nc6 3 Bb5 a6 draw as well,
but we only need only one to weakly solve Chess, so the other is not relevant.
This makes it plausible that only Sqrt (10^37 * 10 / 10,000) = 10^17 positions are relevant to weakly solving Chess.
You shouldn't keep talking to yourself, btickler. Especially not on posts addressed to others, because newcomers, who don't know you, won't know it's just what you do when you're talking to yourself. It's understood that you have difficulties and challenges to overcome.
I will say in your favor that it is gratifying that you finally learned how to quote posts without mucking up everything to the point of unreadability the way you used to. It proves you can actually learn something even now.