Henry Ernest Dudeney/Modern Puzzles/174 - Swastika Magic Square

by : $174$

 * Swastika Magic Square
 * A correspondent sent me this little curiosity.


 * It is a magic square, the rows, columns, and two diagonals all adding up to $65$,
 * and all prime numbers that occur between $1$ and $25$
 * (viz. $1$, $2$, $3$, $5$, $7$, $11$, $13$, $17$, $19$, $23$)
 * are to be found in the swastika except $11$.


 * Dudeney-Modern-Puzzles-174.png


 * "This number," he says, "in occult lore is ominous and is associated with the eleven Curses of Ebal,
 * so it is just as well it does not come into this potent charm of good fortune."


 * He is clearly under the impression that $11$ cannot be got into the swastika with the other primes.
 * But in this he is wrong, and the reader may like to try to reconstruct the square
 * so that the swastika contains all the prime numbers
 * and yet forms a correct magic square, for it is quite possible.