The idea is to provide an easy to use tool that can help a user solve a tough sudoku of any type (not just 9x9). This is achieved by implementing human-style solving techniques (based on the documentation on HoDoKu). The user can then get visual hints from the solver, which provides either the "least complex" next step available, or a next step using a technique of the users choice.
The tool can be tested on https://cedemax.github.io/BlazorSudoku/