Happy Sudoku-Logical Training 4+

Sudoku puzzles for kids and adults!
Train your brain and logic!
No annoying ads! Join the fun with friends and family of all ages!
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Step into the world of this math logic game that has captivated minds for over 300 years. Sharpen your observation skills and unleash your logical thinking to solve puzzles by filling in the missing numbers. Remember, each number is exclusive in every row, column, and box.

◇ Features:
1) Dive into the action with four-box, six-box, and nine-box varieties. Start from your favorite stage!
2) Explore progressive levels with over 300 thrilling puzzles and 170+ engaging exercises.
3) Immerse yourself in stunning graphics that ditch the old black and white design. Prepare for a Sudoku experience like no other!
4) Jigsaw puzzle function, which can relax the mind and explore the beauty of the world during the process of brain training.
5) Unlock achievements and meet adorable animals as witnesses to your journey towards mastery.

◇ Functions:
1) Unleash the power of our hint algorithm to guide you through each step, allowing you to strengthen your skills along the way.
2) Easily mark or eliminate candidates and freely record your thinking process
3) Automatically save, if you leave an unfinished puzzle in the middle, the progress will be saved and you can continue at any time
4) Unlimited undo, convenient to try different solutions
5) Easy-to-understand graphic tutorials and exercises
6) Statistical function to record your growth
7) More puzzles will be updated continuously

Subscription Instructions：
Payment will be charged to iTunes Account at confirmation of purchase. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal.
Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase.
Free Trial：Enjoy a 7-day free trial when you subscribe for the first time. Subscription starts on the 8th day. It will automatically renew to a paid subscription unless auto-renewal is turned off.

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