It was challenging, but also moved along. There is ONE PIECE MISSING. My husband made a replacement piece.The new piece was made by hand on a jigsaw from plywood and hand painted to match. Pictures show the puzzle with and with out this piece. In person it is really hard to see which one is replaced. Lots of other puzzles for sale, along with vintage toys ++++. The item "Vintage wood jigsaw puzzle U-Nit Treasures 400 14x20 FAO Schwarz" is in sale since Monday, December 18, 2017. This item is in the category "Toys & Hobbies\Puzzles\Vintage Puzzles\Wooden". The seller is "rkiihne" and is located in Concord, Massachusetts. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Russian federation, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica.