This is a ‘Kurotto’ puzzle - I'll be sharing the rules along with some tips, tricks, and strategies on how to solve them.
Try it yourself here: https://puzz.link/p?kurotto/10/10/m1g3g5g7g2q4g44g3i1g6h4g3r633g7h1k25h6j4i5i9h4i566i3
100 Sudoku Variants Puzzle Book: https://www.amazon.com/dp/B08P3PCC85
100 Logic Puzzles Book – Volume 1: https://www.amazon.com/dp/B08T71QVQ8
100 Logic Puzzles Book – Volume 2: https://www.amazon.com/dp/B08YQCP6L6
Other puzzle tutorials: https://www.youtube.com/playlist?list=PLdOZQX8VRXuywHFBj9TZg26rzan_sSR-H