So if youre admitting 9500 BC exists then YEC must be mistaken.
For the dates-
Flood, The - Jewish Knowledge Base
the original time was on wikipedia under 22nd century BC and then this page shows the time of the flood ending to be 2105BC
I stated that Plato said that Timeus said that Solon said the flood was 9000 years before Plato. No other source has that date, and the "Famine Stele" (Sahal marker) implies that Tscheser (2700BC) was able to consult the records of how the "ancestors took themselves quickly to the double doors in the sky", as the records were intact. I presume that Solon checked the Egyptian records himself, and was confused by the fact that the same Egyptian hieroglyph means "year" as means "season", and there are three seasons to a year. That makes the date agree with most of the sources.
Unforfortunately, "Jewish knowledge base" does not say how they arrived at the date. It just keeps repeating it over and over. It occurred to me last night that the Septuagint gives different patriarchal chronology than the Hebrew Bible, and it calculates creation out to 4500 BC or so. Since it puts the flood at close to 2900, that's 1600 years. If you mistakenly subtract 1600 years from the Hebrew Bible's calculation of the birth of Enosh (3700), you get right about 2100 BC. I'm guessing that's what the website did, but unfortunately, they don't tell us. Matthew 1 puts a roughly identical timespan between Babylonian return and Jesus, as from David to Babylonian return, and again from Abraham to David. Abraham to David is longer, since lifespans were still declining at Abraham's time. That puts Babylonian return just after 600, David 1200, Abraham 1900. Matthew must reflect what the Jews of Jesus' time believed, since it was an evangelical tool for that group. It would be most curious to see what the website you quote does to the entire range of people from Noah through Arphaxad, down to Terah, Abraham, Isaac, Jacob, Joseph, the 400 years until the Exodus. If they keep counting people, by Ezekiel's time, people would have to be having babies at age 4 just to get to the date of Gamaliel, and have him around during Roman Empire days. The date simply cannot be reconciled with the Old Testament and Talmud itself, let alone with archeology or history.