Start this up. Okay. Here's an example for one: ____ 12 |9|_|_| 21 |4|1|_| 14 |4|_|1| 8 17 9 17 11 Try to figure out what numbers to fill in so that all the numbers in the column of a detached number add up to the detached number. Same with rows and, with the ones in the corners, diagonals. Answer: ____ |9|5|7| |4|1|9| |4|3|1|
