Ukraine ping!
Thanks Dr. A number of the Russians fled by night, taking only light vehicles and abandoning their remaining arms and ammo. The rest have been encircled and trapped. The Russians have no resources inside the pocket available for a breakout, and nothing to the east to offer attack.
It's a classic "hit 'em where they ain't" by the Ukrainians, and the Russians fleeing Lyman and the surrender of those now trapped may (probably) cause another big skedaddle in the wider front, as happened when the Ukrainian counterattack started over a month ago. The Ukrainians gave the fleeing Russians time to tell all the other Russians what was happening, causing those behind the lines to run as well.
Highway of death, there are videos of groups of unorganized Russians fleeing across the countryside, comic as they are captured one by one
The Fall of Lyman (90 second summary)
https://www.youtube.com/watch?v=Dv9AZ5zlRf4
Russia is so losing this war. It’s getting silly for them to keep fighting.