The famous trick donkeys: a Sam Loyd puzzle – David Richeson: Division by Zero
WoodPuzzles - Sam Loyd's Square to Cross - Solution
SAM LOYD'S famous paper puzzles - Review - YouTube
Sam Loyd - Linda Hall Library
This is THE DISAPPEARING BICYCLIST puzzle by 18th Century mathematician Sam Loyd. In position 'A' 13 boys are visible, but in position 'B' - only 12. One is invited to determine which
Sam Loyd's Puzzles
PUZZLES OF SAM LOYD by Will Shortz – Slobucket
Sam Loyd's Cyclopedia of Puzzles
Sam Loyd's Cyclopedia of Puzzles
Sam Loyd: Puzzle King | Lilly Library
Sam Loyd's Geometric Puzzle
Sam Loyd, Weight Problems, and Exercises | Math Munch