Sam Loyd's Missing Square/Mistake
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Source Work
1986: David Wells: Curious and Interesting Numbers:
- The Dictionary
- $5$
1997: David Wells: Curious and Interesting Numbers (2nd ed.):
- The Dictionary
- $5$
Mistake
- Simson 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 Sam Loyd.
In fact the puzzle was first first published in $1774$ in Rational Recreations by William Hooper
Sources
- 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $5$
- 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $5$