ice sudoku

【High performance, rich sudoku bank】
ice sudoku uses an efficient random number algorithm and uses multi-threaded concurrent technology to efficiently utilize Apple A series processors. It can quickly generate 5 types of Sudoku of different difficulty levels (beginner, easy, medium, difficult, and top).
It provides a comprehensive question bank covering SE 1.2~11.9 and supports search and random retrieval.

(1) Beginner, easy, medium, difficult, and top Sudoku special skill questions: 999 questions each
(2) Higher algorithm level Ice Sudoku Sudoku (SE 8.3-SE 9.2): 999 questions
(3) Peak algorithm level Icey Comet Sudoku (SE 8.8-SE 10.5): 999 questions
(4) Super first-class difficulty Sudoku (SE 10.5+): more than 100 questions

【Extreme logic, advanced challenge】
It has a complete logic analysis system that supports step-by-step solutions for any Sudoku, helping you sort out the logical reasoning of each step.
It has a rich library of targeted Sudoku training to help you become a Sudoku master.
Exclusive challenge mode, test level, speed challenge, unlock exclusive icons, so that Sudoku is no longer boring.

[Privacy protection, offline play]
The developer promises not to collect any data from ice sudoku, and you can enjoy all functions without network connection, no ads, no in-app purchases, and fully protect your privacy and security.

[High freedom, customizable]
Supports free circle change to painting, especially suitable for iPad with Pencil.
Supports Sudoku customization, where the numbers are determined by you, and there are templates to generate axial symmetric Sudoku.
The archive system is complete, and you can export 81 Sudoku strings to facilitate the management of your Sudoku library and free sharing.

[Rich functions, simple and intuitive]
The interface design is simple and clear, and continues to improve. iOS 13 and above devices support Sudoku scanning recognition.
Automatically fill in candidate numbers, error protection, highlight candidate numbers, candidate number background color adjustment, quick fill, and more convenient functions are waiting for you to explore.

[Continuous updates, support feedback]
Whether you are a master who can solve all kinds of Sudoku easily, or a Sudoku beginner, you can find the right questions for you here.
If you have better suggestions, please contact us so that we can hear your voice!

Official website of ice sudoku: https://github.com/tropicalwzc/ice_sudoku.github.io