RZD (Rossiyskye Zheleznye Dorogi) 2TE25KM puzzle, based on an original photo by Konstantin Davidov (photo copyright Konstantin Davidov -- used with permission). Photographed at Tutani, Latvia, June 19, 2019.
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.