✓For all ages
✓Millions of players worldwide
✓The World's Fastest Growing Math & Logic Puzzle
✓As seen in 150 Newspapers Worldwide


DAILY CHALLENGE

Puzzles update at midnight EST

CREATE CUSTOM PUZZLE
TAP ANY TO PLAY
KenKen Puzzle Size 4
FAQ
TIPS
Play 2048 Play Sudoku

Brain Teaser Websites


Welcome to the engaging world of brain teaser websites, where you can find an array of puzzles designed to challenge your mind and enhance cognitive skills. At KenKen Puzzles, our collection of free online puzzles offers a diverse range of brain teasers. Each KenKen puzzle is carefully crafted to test your deductive reasoning and problem-solving abilities, making our site an ideal destination for those who love to give their brain a good workout.

KENKEN for your Mobile

Fun, addicting, yet educational. The KenKen iOS and Android apps are perfect for the whole family!

Get It Now

Benefits of Brain Teaser Websites


Brain teaser websites offer numerous benefits, making them a popular choice for people of all ages. Engaging regularly with the logic puzzle games on our site helps improve memory, enhances problem-solving skills, and stimulates mental agility. Our selection of deductive reasoning games, including our unique KenKen puzzle, is particularly beneficial for developing critical thinking skills, allowing you to approach problems in a more analytical and creative way. Moreover, the variety of free online puzzles available ensures that there is always a new challenge to keep your mind engaged and active. We put 7 new KenKen brain teasers online every day!

Head to Brain Teaser Websites


If you're eager to dive deeper into the world of mental challenges, heading to our brain teaser websites is your next step. By doing so, you'll gain unlimited access to a vast collection of logic puzzle games, such as sudokus and KenKen puzzles. Each puzzle is designed to provide a unique and stimulating experience, ensuring that you're constantly pushing your cognitive boundaries. Play now and join a community of like-minded individuals who share your passion for brain teasers. Subscribe today and never miss out on the latest and most challenging puzzles and brainteaser websites we have to offer!

Will Shortz, NY Times Crossword Puzzle Editor and
NPR Puzzle Master Loves KenKen! Find out why

Rules For Playing KenKen®

The numbers you use in a KenKen puzzle depend on the size of the grid you choose. A 3 x 3 grid (3 squares across, 3 squares down) means you use the numbers 1, 2, and 3. In a 4 x 4 grid, use numbers 1 to 4. A 5x5 grid requires you use the numbers 1 to 5, and so on.

The numbers in each heavily outlined set of squares, called cages, must combine (in any order) to produce the target number in the top corner using the mathematic operation indicated (+, -, ×, ÷).

Here's how you play:

  1. Use each number only once per row, once per column.
  2. Cages with just one square should be filled in with the target number in the top corner.
  3. A number can be repeated within a cage as long as it is not in the same row or column.
×
  1. To start, click on any square. A "number ring" appears with that grid's possible numbers. These numbers will also show up on the left side above the grid as the "Notes" box.
  2. Ready to fill a number in that square? Just click the one you want in the number ring. It will then appear in the middle of the square.
  3. Narrowed it down to a couple of numbers but still not totally sure? Click the numbers you want from the Notes box. They'll show up smaller in the square.

    Hints: Also in the candidates bar are , :
    • Clicking will place all possible Notes in the square.
    • Clicking will get rid of all the Notes in the square.
    • If you'd like to repeat a note (notes) in another square, simply drag the number from the original square to the new one. Click here to see the video of how it works.
  4. When you've ruled out one of your notes, click on it again in the Notes box. The number will disappear from the square.
  5. When you fill in a number in a square (by selecting from the number ring), any notes in that square will disappear.
  6. Changed your mind about a number? In the number ring, click the red eraser icon to clear the square.
  7. To hide the number ring, click the red "X."
  8. How to Use the Keyboard: You can enter numbers and notes by using the keyboard. Once you’ve selected a square, you can press shift and a number key to enter (or delete) that number as a note. Or, to just enter a number in a square, press that number on the keyboard (no shift). To delete a number or note, press C.
×