Sudoku

Sudoku is a well-known puzzle based on logical placement of numbers.

+HOW TO PLAY+
The goal of the game is to place numbers from 1 to 9 in each of the empty cells in a grid of 9x9, consisting of 3x3 subgrades called regions.

The puzzle contains some initial clues, which are numbers inserted into some cells, so as to allow for induction or deduction of numbers in cells that are empty.

Each column, row, and region can only have a number from 1 to 9 each.
Solving the problem requires only logical reasoning and some time.

Problems are usually classified in relation to their realization.

+FEATURES+
This game contains different levels of difficulty: easy, normal and hard.

To each game completed successfully the player earns points:
○ Finish a game in easy mode (+1 point)
○ Finish a game in normal mode (+5 points)
○ Finish a game in hard mode (+10 points)
○ Finish a game in very hard mode (+20 points)

Sudoku contains access to player game statistics, such as game time, and quantities of times that the game ended as the difficulties occur.

The game has a beautiful and clean design, focused on the comfort and gameplay of the player.

The game also contains leaderboard and achievements.