fit the numbers 1-25 Place the numbers 1 through 25 in the grid below:   1 2 3 4 5 A | | | | | | B | | | | | | C | | | | | | D | | | | | | E | | | | | | The sum of each column is odd The sum of each row, except C, is even The sum of row A is not greater than the sum of any other row The sum of the diagonal E1 to A5 is less than that of the diagonal A1 to E5 A4 + B4 > C4 + D4 + E4 A1 + B1 = D1 + E1 A1 > E1 A1, A3 and B1 are all prime numbers (A3 + E3) is a prime number A5, D1, D3 and E1 are all squares B2, C2 and D2 are ascending consecutive numbers B3, C3 and D3 are ascending consecutive numbers B5 + D5 = A5 + C5 (C1)² + (C5)² = (E3)² C5 is a two digit number D5 is a multiple of E5 E1 + E3 = E2 + E4 + E5 Vivek Gupta Friday, February 11, 2005 here is one the possible solution I tried to reach at... It took me about an hour to solve this, sorry I am not in position to tell you which conditions I considered 1st and included the others side by side. [ 07, 11, 02, 17, 01 ] [ 13, 19, 23, 18, 03 ] [ 09, 20, 24, 08, 12 ] [ 16, 21, 25, 14, 10 ] [ 04, 22, 15, 06, 05 ] Vivek Gupta Friday, February 11, 2005   Fog Creek Home