Hi! I have been trying to solve this puzzle for some time now and I just can't get it. It is not a Sudoku, but similar so I hope it is ok to post here.

Puzzle - Around each red number are 8 white squares, and each white square should have a number from 1 to 7. Once filled in, these 8 numbers will sum to the red number. In addition, once completed correctly, no row nor column will contain a duplicate number within a white square.

Thanks in advance for any help you can give me. It is driving me crazy, and I really want to see the solution. Cheers.