Hi Sudoku - classic brain game

Hi Sudoku is one of the most popular puzzle games in the world. Now you can play classic pen and paper games directly on your phone! With our simple and elegant design, Hi Sudoku is the best way to play this timeless classic.
Challenge your problem-solving skills with expert-level games, or take a break with quick games in simple mode. Whether you are a competitive problem solver or someone who just wants to relax, whether it is a beginner or a skilled problem solver, Hi Sudoku can let you play the game in your own way.

A classic Sudoku game for beginners and advanced players. Whether you want to relax or stay energetic – spend time in a pleasant way! Take a short break with Sudoku.com or clear your mind. Take your favorite games with you wherever you go. Playing Hi Sudoku on your phone is as good as using pencil and paper.
Challenge your problem-solving skills with expert-level games, or take a break with quick games in simple mode. Whether you are a competitive problem solver or someone who just wants to relax, whether it is a beginner or a skilled problem solver, Hi Sudoku can let you play the game in your own way.

-Thousands of puzzles in completely free format
-Classic Sudoku design, beautifully reproduced on the phone
-Use pencils to make notes on puzzles
-Highlight duplicates to help you solve the puzzle
-Challenge yourself by limiting yourself to three mistakes
-Use hints to help you solve puzzles-through our carefully customized custom Sudoku game
-Four elaborate difficulty levels: simple, medium, difficult and expert.
-Highlight duplicates to avoid repeating numbers in rows, columns and blocks
-Automatic error checking: enable the automatic check function to easily find errors, or disable it to play more free games
-Optional error limitation: challenge yourself, play a perfect game, or relax yourself and enjoy unlimited errors
-Pencil mode: use pencil mode to take notes on each cell and update automatically when playing games
-Statistics: View the best time and stripes for each difficulty level
-Auto save: your puzzles are saved with you, so you can come back at any time
-Hint: When you are stuck, the hint can guide you to solve the problem
EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/