Sam Loyd's Missing Square/Mistake

Source Work

 * The Dictionary
 * $5$
 * $5$


 * The Dictionary
 * $5$
 * $5$

Mistake

 *  also discovered the identity $F_{n - 1} F_{n + 1} - {F_n}^2 = \paren {-1}^n$, which is the basis of a puzzling trick first presented by .

In fact the puzzle was first first published in $1774$ in by