🔢 Full-screen Sudoku game
Sudoku on the whole screen with no distractions: 4x4 for little ones, 6x6 for beginners and 9x9 at easy, medium and hard. Notes mode, hints and mistake marking. Free, no sign-up.
How to play
- Choose an empty square and tap a number from the row below.
- In every row, every column and every highlighted box, each number appears only once.
- A wrong number turns red. ✏️ Notes mode lets you jot down small possibilities.
- Stuck? 💡 fills in one square for you.
- Whole board full and correct? You solved it!
Tips from the champions
- Look for a row or box that is missing only one or two numbers.
- Tapping a square highlights all the same numbers, so you can see where that number is still missing.
- Start with 4x4 and move up a level when it gets easy.
What does it train?
- Logic and deduction
- Focus and patience
- Number recognition
Frequently asked questions
Does every board have exactly one solution?
Yes. Every board is generated by the computer and checked to have exactly one solution, so you can solve it with logic and never need to guess.
What sizes and levels are there?
There is a 4x4 board for little ones, a 6x6 board for beginners, and 9x9 boards at easy, medium and hard levels. You can switch between them with one tap.
More online games
Ball Sort
Move balls between tubes until every tube holds a single color
Flying Cubes
Take a 3D cube apart: tap a cube and it flies off in the direction of its arrow, if the way is clear
Escaping Arrows
Tap an arrow and it escapes off the board in its direction, but only if the way is clear. 300 levels
Double It to 2048
Slide the board, join matching numbers and double them, all the way to 2048!
Block Party
Drag shapes onto the board and fill rows and columns to clear them
Traffic Jam
Slide cars forward and back to free the ice cream truck from the jam
Falling Blocks
The classic falling blocks game: turn, arrange and make rows disappear
Find Buga
Buga, the yellow one with the parrot, hides in a busy picture. Who spots it first?
Whack-a-Mole
Whack the moles popping out of the holes, but not the bunny!
Sliding Puzzle
The classic 15 puzzle: slide the tiles until all the numbers are in order
Minesweeper
Use the numbers to work out where the mines hide, without stepping on one
Snake
The classic snake, champion edition: a 20-level journey, special powers and skins
Tic-Tac-Toe
Three in a row: two players on one screen, or play an unbeatable computer
Four in a Row
Drop discs and line up four: two players on one screen, or play the computer
Battleship
The classic naval game against the computer: find and sink the whole fleet
Buga 24
Four numbers, four operations and one goal: make exactly 24
Solitaire
The classic card game for one: arrange all the cards from ace to king
Spider Solitaire
Build runs from king down to ace, with one suit, two or four
FreeCell
Arrange all 52 cards with the help of four free cells
Crazy Eights
Match the suit or the number, and an 8 changes everything
Hearts
Avoid the hearts and the queen of spades in a strategy game for four
Poker Academy
Learn hand rankings, odds and spotting the winner with interactive puzzles
Five Card Draw
Classic poker against the computer: choose, swap and build the strongest hand
Texas Hold'em
A full poker table against up to five computer players, with blinds and side pots
Gin Rummy
Build runs and sets, knock at the right time and beat the computer
Matchstick Puzzles
200 levels · hints · stars · progress saved
Water Jugs
100 levels · hints · stars · progress saved
River Crossing
100 levels · hints · stars · progress saved
Which Wire to Cut?
150 levels · hints · stars · progress saved
Lights Out
220 levels · hints · stars · progress saved
Just One Move
200 levels · hints · stars · progress saved
Buga IQ
500 levels · hints · stars · progress saved
Find the Differences
Two almost identical pictures. Tap everything that changed. 18 levels
Five-Letter Word
A new word every day, endless practice by topic, and a word marathon