by Kyle Yunker
CSX Transportation (CSXT) ET44AC puzzle, based on an original photo by Kyle Yunker (photo copyright Kyle Yunker -- used with permission). Photographed at Atlanta, Georgia, March 18, 2021.
The "Easy" version of the puzzle has about 100 pieces, "Medium" has about 200 pieces, "Hard" is about 300 pieces. For the Online puzzles, see the Online Puzzle Tips.