Attached Grid (Total 5 x 5) has a black box grid (3 x 3) inside it.
The Black box grid needs to be filled out with numbers 1 thru 9 using all numbers once.
The Outer Red box squares (Total 16 ) need to be filled out with numbers 10 thru 25 using all numbers once.
All numbers must be used once.
Some numbers are already entered to get started.
The goal is SUM 50.
Rows and Columns 1,2 and 3 (5 numbers in each) must individually add up to 50. So each Row and Column (1,2 and 3) must add up to 50.
Also each diagonal, two as shown, (5 numbers) must add up to 50
Rows X and Y and Columns X and Y can add up to anything, no restrictions.