puzzles Neumorphic Knots — a fun web-based puzzle game Mark Frauenfelder

useful stuff Excellent cheap puzzle book: The Moscow Puzzles: 359 Mathematical Recreations Mark Frauenfelder

puzzles After 14 years, a puzzle to find a man has been solved Mark Frauenfelder

puzzles Wooden puzzle box for storing stuff Clive Thompson

art Two puzzles with the cuts of each printed on the other David Pescovitz

puzzles "Blocks" is a fun web-based puzzle game that gets increasingly more challenging Mark Frauenfelder

puzzles Video of a jigsaw puzzle factory Mark Frauenfelder

puzzles Tiny $1900 Rubik's Cube Rob Beschizza

Games Here's how to solve a complex metal tavern puzzle Andrea James

puzzles A surprising solution to the (in)famous "Cross the Network" puzzle Mark Frauenfelder

puzzles My trip through the Starmaze: a world in the 9th dimension Jane Frauenfelder

puzzles Can you solve the "scrambled box tops" puzzle? Mark Frauenfelder

puzzles Watching this guy solve a sudoku is deeply satisfying Mark Frauenfelder

puzzles Can you rearrange these cards, sudoku style? Carla Sinclair

puzzles Watch a master solve a nightmare ring puzzle Rob Beschizza

toys Why this sliding tile puzzle arrangement is impossible Mark Frauenfelder

Games Chocolate Fix: a favorite puzzle game Mark Frauenfelder

puzzles Can you solve the "artist's dilemma" problem? Mark Frauenfelder

puzzles Cool magic trick: The Perpetual Puzzle Mark Frauenfelder

math Weird and wild warped-grid jigsaw puzzles inspired by Mobius, Haeckel, and Picasso David Pescovitz