I am halfway through a room when I chipped and dented a board on the row down the middle of the floor. I could glue the chip back (maybe 3/16 x 3/4") but I'm not sure how well wood glue would hold up over the years. The board is in prime position to be replaced, but is that a good idea? The board is about 6" x 48" and glued down to concrete. Should I try to pry it up with crowbars? Hammer wedges under it? Saw it out? Use a reciprocating saw under it? Or just leave it be? The damaged board has the groove side exposed down the long edge, so there no worry about damaging a long tongue, but I fear damaging other boards in the process and making things worse. What should I do?

Help!!!!!!

You should replace it before continuing. I imagine it doesnt look good now, and only going to look worse down the road.

Replacing a plank is not a big deal to a pro. Being that this is not surrounded on all 4 sides, it will be a little easier for a DIY to replace.
Set a circular saw the thickness of the wood. Tape along the edges of the adjoining planks, ( this will protect them from any damage from the saw plate). Carefully cut about 1/2" inside the seams on both ends, and down the length. Then chisel the corners. Pop that middle section out with a prybar. Now, being very careful, chisel down on an angle in both corners, away from the adjoining planks. Now you will chisel both end pieces out, and proceed with the length section. I emphasize, all chiseling on an angle away from adjoining planks, ( this way your not binding the the wood against the surrounding plank edges).