SAM LOYD OFFICIAL SITE
PONY PUZZLE
The Pony Puzzle was inspired on a trip back from Europe while passing by the White Horse Monument in England.
get off the earth

The Wonderful Pony Puzzle was first created in 1868.

get off the earth

The Original Chinese Pony Puzzle also includes a hidden image of Sam Loyd.

get off the earth

The last version was called The Pony Puzzle. It is said that over 1 billion puzzles were distributed.