![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 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](https://i.imgur.com/Voq2oVK.jpg)
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 Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games](https://m.media-amazon.com/images/I/71Ka-otIOJL.jpg)
Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games
![Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games](https://m.media-amazon.com/images/I/61FryGB9CpL.jpg)
Amazon.com: 10 Penny Puzzle - A Circle Packing Problem - Ten Mint Pennies are Included : Toys & Games
![REAL US PENNY CUT INTO A 10 PIECE JIGSAW PUZZLE COIN - GREAT HANDMADE ART GIFT at Amazon's Collectible Coins Store REAL US PENNY CUT INTO A 10 PIECE JIGSAW PUZZLE COIN - GREAT HANDMADE ART GIFT at Amazon's Collectible Coins Store](https://m.media-amazon.com/images/I/711957Iv-DL.jpg)
REAL US PENNY CUT INTO A 10 PIECE JIGSAW PUZZLE COIN - GREAT HANDMADE ART GIFT at Amazon's Collectible Coins Store
![Ten Penny Puzzle Board Games Brain Tease Jigsaw Puzzle Pennies High Difficulty Brain Burning for Adults Kids Gift Ten Penny Puzzle Board Games Brain Tease Jigsaw Puzzle Pennies High Difficulty Brain Burning for Adults Kids Gift](https://ae01.alicdn.com/kf/S51cbfd95c3234f16b188f13586bd8d30r/Ten-Penny-Puzzle-Board-Games-Brain-Tease-Jigsaw-Puzzle-Pennies-High-Difficulty-Brain-Burning-for-Adults.jpg)
Ten Penny Puzzle Board Games Brain Tease Jigsaw Puzzle Pennies High Difficulty Brain Burning for Adults Kids Gift
![Amazon.com: Penny Packer 16 Puzzle - Can You Fit The 16 Provided Mint Pennies Into The Open Quadrant : Handmade Products Amazon.com: Penny Packer 16 Puzzle - Can You Fit The 16 Provided Mint Pennies Into The Open Quadrant : Handmade Products](https://m.media-amazon.com/images/I/81e-3Jfou7L._UF1000,1000_QL80_.jpg)
Amazon.com: Penny Packer 16 Puzzle - Can You Fit The 16 Provided Mint Pennies Into The Open Quadrant : Handmade Products
![Ten Penny Puzzle Board Games Brain Tease Jigsaw Puzzle Pennies High Difficulty Brain Burning for Adults Kids Gift Ten Penny Puzzle Board Games Brain Tease Jigsaw Puzzle Pennies High Difficulty Brain Burning for Adults Kids Gift](https://ae01.alicdn.com/kf/Sc52c6aa9d3fa47a1b1ea1b8424f07557P/Ten-Penny-Puzzle-Board-Games-Brain-Tease-Jigsaw-Puzzle-Pennies-High-Difficulty-Brain-Burning-for-Adults.jpg)