Game Guides
Master your favorite number games with our comprehensive guides and tips.
Sudoku
Play NowSudoku Basic Rules
Sudoku is a 9x9 grid where you need to fill in numbers 1-9 without repeating any number in each row, column, and 3x3 block.
How to Start Solving Sudoku
Begin with the simplest numbers, look for unique possible positions for numbers, and gradually progress.
Advanced Technique: Hidden Singles
When a cell has only one possible number, that number is the unique candidate.
Advanced Technique: Hidden Singles
When a number has only one possible position in a row, column, or block, that is a hidden single.
Does Sudoku always have a solution?
Every valid Sudoku puzzle has one and only one solution.
How to judge Sudoku difficulty?
Difficulty primarily depends on the number and complexity of techniques required to solve it.
2048
Play Now2048 Game Rules
Use arrow keys to move tiles. When two tiles with the same number touch, they merge into one. The goal is to get the 2048 tile.
Advanced Strategy: Corner Strategy
Keep the largest number in a corner and arrange other numbers in decreasing order.
How to get a high score?
Keep the large numbers in the corner, avoid random moves, and maintain an orderly arrangement of numbers.