This sounds like a great deal. Ukrainian vessels will remove the mines they placed in the Black Sea. Russians will open 3 ports for passage of Ukrainian vessels and the Turks will supervise, and check the vessels for weapons. Sometimes miracles can happen.
The burning question is will the Biden Administration queer the deal?
This sounds like a possible sane move by Russia to diplomatically extricate itself from the Tarbaby. One of our big new pieces of artillery apparently destroyed a big stockpile of armaments and amunition in an area relatively close to Odessa. Putin may be seeing the handwriting on the wall. Also there have been reports that some of Donbass’ resident may not be all that happy to become Russians. At any rate, time will tell. Hopefully, this is promising news.