by Pawel Guraj
PKP CARGO ST44 puzzle, based on an original photo by Pawel Guraj (photo copyright Pawel Guraj -- used with permission). Photographed at Warszawa, Poland, November 4, 2018.
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.