When the below magic square has been completed, each row and each column will add up to 46, as will each of the two main diagonals. The total of the four corners will also be 46 and each of the nine 2x2 subsquares will add up to 46 as well.
Complete the magic square.
10 12 7 17
5 19 8 14
16 6 13 11
15 9 18 4
Edited on November 3, 2011, 10:28 am