If you really want to learn from Good Sudoku I reckon Arcade mode is the way to go

Sudoku is the game where you have to be certain about things. Your job is to put the numbers from 1-9 into each and every row, column, and 3×3 “house” of a 9×9 grid, and you do this by using the scattering of numbers that are already there. You only write a number down when you are absolutely certain it’s right, and you trust the game to parcel out this certainty so there is always progress to be made.

For years I have been stuck at the very base of the great Sudoku tree. I know how to slice and dice, but this only sees me through the very basic puzzles. Now Zach Gage and Jack Schlesigner have created Good Sudoku. It’s another Sudoku app for smartphones, of which there are many, but this one is different. It wants to teach you how to get better at Sudoku. It’s a sort of Sudoku academy.

I have been playing this for the last few weeks, and it’s taken a while for it to click. A central idea here is that you can get hints when you’re stuck: the program that made each Sudoku can point out where you should turn your attention to next when you can’t see the way ahead. This is neat stuff, but along with auto-noting – the ability to automatically keep track of the possible number options for each square – and a neat thing that lets you highlight a number and see all possible spaces where that number might go, Good Sudoku seemed… well, it seemed to automate a little too much. How could I learn Sudoku from this game that seemed to be able to play Sudoku so well without me? And these handy helpers seemed to enforce their own bad habits – their own reliances – which made me feel that the lessons I learned in the app would not really come across to Sudoku on paper.

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