Jigsaw puzzle, a tiling puzzle that requires the assembly of interlocking pieces
According to the Alzheimer Society of Canada, doing jigsaw puzzles is one of many activities that can help keep the brain active and may contribute to reducing the risk of developing Alzheimer's disease.
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Players can use the stylus and touch screen to test their reflexes in action mini-games like racing and skydiving, take on sporting events such as basketball, curling, and archery, strategize with tank and space combat games, or play match three, Sudoku, and jigsaw puzzles.
British spoofers have targeted several build to order novelty products made by Media Storehouse from two million licensed photo library images, including a canvas print of minor celebrity Paul Ross, and a jigsaw puzzle of Nick Humby, a former finance director of Manchester United.
Melamine and cyanuric acid form a jigsaw puzzle-like two-dimensional hydrogen bonding network because of the complementarity of the two compounds, similar to DNA base pairing.
Stave Puzzles is the largest hand-cut jigsaw puzzle company in the USA, and perhaps in the world, but faces growing competition from laser-cutting companies like Liberty Puzzles and Artifact Puzzles that produce similar (but generally judged to be lower-quality) products at roughly a tenth of the cost.
Their son, Chris Wirth, is founder of Liberty Puzzles, the largest American laser-cut jigsaw puzzle company, based in Boulder, Colorado.