[DEV] Hintoku — a Sudoku app that truly teaches you learn how to remedy more durable puzzles

Most Sudoku apps throw you into random “knowledgeable” puzzles and anticipate you to determine them out. I wished one thing completely different, so I constructed an app round one easy concept:

study a method → follow it → add one other technique → follow once more → …

As an alternative of guessing your method by more durable puzzles, Hintoku teaches Sudoku step-by-step.

The development appears like this:

Study a primary technique Resolve puzzles that use solely that technique

Then your toolbox expands:

Study one other technique Resolve puzzles that use each methods

Then it continues:

Study the subsequent technique Resolve puzzles that mix every thing you’ve discovered up to now

So the problem grows naturally, and also you’re by no means caught on a puzzle that requires strategies you haven’t discovered but.

However Sudoku can nonetheless be difficult — even when the correct technique. When that occurs, Hintoku tries to information your considering step-by-step as an alternative of instantly revealing the reply.

The assistance system works like this:

first you see the problem of the simplest obtainable transfer, so whether or not to search for one thing easy or extra superior then you definitely see the technique identify (e.g. “X-Wing”) then a small directional clue pointing you the place to look and provided that wanted a full visible clarification of why the transfer works

The aim is to provide you simply sufficient data to maintain considering, to not take the puzzle away from you.

Different issues I targeted on:

Enter your personal Sudoku puzzle (from a newspaper or web site) and get the identical step-by-step steering. Teaches actual fixing strategies — beginning with fundamentals like singles, pointing pairs and field discount, shifting by classics like Skyscraper and X-Wing, and supporting superior strategies like X-Chains, XY-Chains, normal AIC, and ALS-XZ. Logic-only fixing — no guessing required. Works absolutely offline No advertisements

If you happen to like the thought of bettering your Sudoku abilities by studying methods in the correct order — with a touch system that guides your considering and visible walkthroughs whenever you want them — I’d love to listen to what you assume.

Google Play hyperlink