No. LXXXVIII.—RANGING THE DIGITS - Pictured Puzzles and Word Play / A Companion to the Twentieth Century Standard Puzzle Book - 159 - A. Cyril Pearson

71. AN ENIGMA 72. WHAT IS THIS WORD?

No. LXXXVIII.—RANGING THE DIGITS

These are the arrangements of the nine digits, by which they add up alike in rows, columns, and diagonals in a square; on all sides in a triangle; and from top to bottom and from side to side in a cross:—

8	1	6
3	5	7
4	9	2

			5
		3		7
	4				6
8		1		9		2

		5
		4
3	6	9	7	2
		8
		1

The totals are 15, 20, and 27 respectively.