N 52° 22.(F+L-G)(K+M-F)N W 001° 58.(H+N-F)(I+J-F)(G+M)
The rational mathematician RR, who invented the equal sign (=) and the word Zenzizenzizenzic to "doeth represent the square of squares squaredly", designed this 4 by 4 square. To solve it first find some missing numbers using the contents of 3 by 3. Then place each of the numbers 1 to 9 in the remaining squares so that all of RR's equal signs are obeyed.
Hint: All at sea, looking for a mouse? Then lift the lid and smell the coffee!
There is nothing at the listed co-ordinates. This cache contains a square needed to find 5 by 5.
Links to other caches in the series:
¤ The Numbers Square
¤ 7 by 7
¤ 6 by 6
¤ 5 by 5
¤ 4 by 4
¤ 3 by 3
¤ 2 by 2 (too!)
¤ Bonus - 1 by 1
¤ Bonus - 26 by 26
Part of The Final Revelation series of 66 puzzle caches.