Guess a 4-digit number to uncover the secret . Receive feedback with color-coded tiles indicating correct digits in the right position (green), correct digits in wrong position (yellow), or incorrect digits (gray).
The app offers Sudoku puzzles in two styles: Classic Sudoku with numbers and Colored Sudoku with nine different colors. It includes thousands of puzzles across seven difficulty levels, all available for free without in-app purchases.
The app creates a conflict between brain hemispheres by using the fact that one hemisphere recognizes colors and the other analyzes word meanings. Users can test the simplicity of pressing colored buttons.
