Russian Railways OPE1

by Aleksei Zadonskii

Russian Railways OPE1 puzzle, based on an original photo by Aleksei Zadonskii (photo copyright Aleksei Zadonskii -- used with permission). Photographed at Kemerovo, Kemerovo Region, Russia, April 23, 2016.

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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.