Free Number Games â Merge, Math, Sudoku & Sliding Puzzles
Use numbers in five different ways: merge equal values, restore a 15-puzzle, solve 30-second mental math, complete a 6Ã6 Sudoku or combine adjacent hex numbers.
Play Number Games
Choose a game by the mechanic you want rather than by a broad store category. Each title below has its own rules, scoring and long-tail search page.
2048
Play 2048 online on a 4Ã4 grid. Slide equal number tiles together, score the value of each merged tile, and get a new 2 or 4 after every valid move.
Number Puzzle
Play a 4Ã4 number puzzle with 15 tiles. Shuffle uses 200 legal moves to keep the board solvable, then track your moves and time to restore 1â15.
Speed Math
Play Speed Math for 30 seconds with addition, subtraction and multiplication. Correct answers score 1 point; wrong answers do not subtract score.
Sudoku Lite
Play Sudoku Lite on a 6Ã6 grid with digits 1â6 and 2Ã3 boxes. Each puzzle removes 16 cells, tracks time and counts wrong entries as Errors.
Hex Merge
Play Hex Merge on a 5Ã5 hex board. Merge equal adjacent tiles, score new level à 2, spawn a new 1â3 tile after each merge, and avoid a locked full board.
Zen Sudoku
Fill the 9Ã9 grid so every row, column and 3Ã3 box contains digits 1 through 9 exactly once. Play Zen Sudoku free in your browser with clear controls and instant restart.
Fusion 4096
Slide matching tiles together and keep combining values toward the 4096 tile. Play Fusion 4096 free in your browser with clear controls and instant restart.
What Are Number Games?
Number games can be arithmetic, logic or spatial puzzles. Speed Math asks for fast calculation, Sudoku Lite uses row/column/box constraints, Number Puzzle uses ordered sliding positions, and 2048/Hex Merge turn equal numbers into larger values.
This hub groups them by the role numbers play in the actual mechanic rather than by broad Puzzle or Strategy categories.
Choose a Number Game by Number Mechanic
Sliding number merge: 2048
Slide a 4Ã4 board, combine equal values and add the resulting tile value directly to score.
Ordered sliding puzzle: Number Puzzle
Restore 1â15 on a 4Ã4 board. Shuffle performs 200 legal moves so the generated state stays solvable.
30-second mental math: Speed Math
Answer addition, subtraction and multiplication questions from four choices. Correct answers are +1; wrong answers do not subtract score.
6Ã6 Sudoku Lite: Sudoku Lite
Fill digits 1â6 so every row, column and 2Ã3 box is valid. The generator removes 16 cells from a solved 36-cell grid.
Adjacent hex number merge: Hex Merge
Merge equal neighboring values on a 5Ã5 hex board and score new level à 2 while new tiles refill empty space.
How Number Games Use Numbers Differently
- Arithmetic games make the number itself the question and reward calculation speed.
- Constraint puzzles use digits as symbols that must satisfy row, column or box rules rather than arithmetic equations.
- Sliding puzzles attach numbers to physical positions and ask you to restore an ordered layout.
- Merge games use equality and growth: matching values combine into a larger tile and reshape future board options.
Number Games FAQ
Which number game is timed?
Speed Math runs for 30 seconds and scores one point per correct answer.
Is Sudoku Lite a normal 9Ã9 Sudoku?
No. This version is 6Ã6, uses digits 1â6 and 2Ã3 boxes.
Which number game is a 15-puzzle?
Number Puzzle uses a 4Ã4 board with tiles 1â15 and one empty cell.
Which number games use merging?
2048 merges equal values during full-board slides, while Hex Merge requires equal adjacent hexes.