Needs a lot of guessing to even start.

Helpful to know the 5 in row 1 is in columns 3-7, the 10 in row 8 is in columns 3-12, and the 4 in column 1 is in rows 3-6. You're trying to make a snail, so the left side will be spiral-y.

I basically guessed even with the help. But thanks for the help Amii.

Gary!!!