Changing UCI output to include piece names UCI output from engines is generally raw in the form of g1f3 and e2e4 representing Nf3 and Pe4. One engine I saw (lozza) sends its PV output with the piece names.  Others, like Stockfish, don't include the piece names in their PV.

How do I get the piece names to show in the PV? I am working on creating my first user GUI, so any help is appreciated.
With the EGN (from, to) you can simply do a check up on what piece exist on the from position.

Say the engine gives you a2a4 you then simply check what exists on a2 and then generate information based on that.

You can do this cause your GUI will always have the same chess board as the engine. It's the engine that recieves a FEN string from the GUI anyways.