Hello,
I am the author of https://www.sudokumood.com. We launched it just recently and we'd like to hear some feedback from users.
The main features of our website are high quality of the puzzles and unique animated hints. Demo of our hints: https://www.facebook.com/sudokumood/videos/1607962366723013/.
Please share your feedback.
P.S. If you are interested in more detailed description of Sudoku Mood, feel free to read this https://www.reddit.com/r/sudoku/comments/1bdulii/we_launched_sudokumoodc....