It isn't a good hanjie, but that's a little harsh... Oct30, please test your puzzles to make sure they're solvable before you submit them. And keep making them :)
Think it wasn't intended, but it's pretty much logical for me with 2nd order logic (or w/e it's called) used 2-3 times. I did have multiple solutions for last 3 squares which can be assumed by looking at the image.
My Logical Hint: Figure out which placement of the 5 in C1 will allow the 4 in C2 to fit.
Then do the same for the 4 in R10 that allows the 1s in R9 to fit, repeat for R8 and R7.
Oct30, please test your puzzles to make sure they're solvable before you submit them.
And keep making them :)
Best of luck with the next puzzle October30! As Rawr suggested, testing the puzzles for logic makes them more fun and enjoyable for solvers. ;)
My Logical Hint:
Figure out which placement of the 5 in C1 will allow the 4 in C2 to fit.
Then do the same for the 4 in R10 that allows the 1s in R9 to fit, repeat for R8 and R7.
Fun puzzle but yeah, test it next time.