Penny Packer 16 Puzzle - Can You Fit The 16 Provided Mint Pennies Into The Open Quadrant : Handmade Products - Amazon.com
10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Amazon.sg: Toys
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Amazon.com: Penny Packer 16 Puzzle - Can You Fit The 16 Provided Mint Pennies Into The Open Quadrant : Handmade Products
My dad, 72, had me create this penny puzzle. I used solidworks to figure out the exact size the square needed to be to fit all 10 in a certain configuration. It
Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games