Select a solving techniques from a list (for starters maybe only Naked Singles and Locked Candidates)
Apply that technique to given board state (any other deduction is incorrect)
Display link to full puzzle
Adjacent idea: Good practice puzzles for learning a technique - the ones that need that technique and the other steps are easy.
Show one house and user has to
Find the missing numbers
Find cell candidates
How it works in HoDoKu - If learning mode is active any newly created sudoku will contain at least one instance of one of the selected techniques. The sudoku is automatically solved up to the point where that technique is applicable.
First simple version: find a simple digit.
How to generate trainer puzzles: process all user solutions, run the solver at each step and if there is a simple digit available add it to the list; maybe require manual review.
Adjacent idea: Good practice puzzles for learning a technique - the ones that need that technique and the other steps are easy.
Show one house and user has to
How it works in HoDoKu - If learning mode is active any newly created sudoku will contain at least one instance of one of the selected techniques. The sudoku is automatically solved up to the point where that technique is applicable.
First simple version: find a simple digit.
How to generate trainer puzzles: process all user solutions, run the solver at each step and if there is a simple digit available add it to the list; maybe require manual review.