A JIGSAW WITH A TWIST. In this new series of geometrically shaped puzzles, traditional jigsaw pieces go out the window! A TOTALLY DIFFERENT PUZZLING CHALLENGE. Using the seven basic geometric shapes known as tetrominos, you must reconstruct Peter Judson´s geometric cityscape. HOURS OF MADDENING FUN. Each shape is repeated dozens of times: can you figure out where each piece goes? AMAZING ARTWORK. Peter Judson´s intricate cityscape is filled with minute detail Finished puzzle 660 x 510 mm