Iowa Interstate Railroad GP38-2 puzzle, based on an original photo by Craig McGregor (photo copyright Craig McGregor -- used with permission). Photographed at Peoria, Illinois, September 14, 2022.
Click here for more information about this photograph
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.