✓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

Mathdoku


If you like Mathdoku, you will LOVE KenKen! At KenKen Puzzles, we strive to offer a variety of puzzles, perfect for enthusiasts who appreciate both math puzzles and logic-based challenges. These puzzles are designed not just for entertainment, but also to enhance your problem-solving skills and numerical abilities. Did you know that the one and only KenKen was the inspiration for Mathdoku? Whether you're a seasoned puzzle solver or new to KenKen, our games provide an excellent opportunity to engage your mind and enjoy the thrill of solving complex puzzles.

KENKEN for your Mobile

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

Get It Now

The Benefits of Our Engaging Puzzles


KenKen offers numerous benefits to its players, making it a popular choice among puzzle enthusiasts. By regularly engaging with our KenKen puzzles, the original Mathdoku, you can improve your mathematical skills and logical thinking. In our collection of free online puzzles, you will uncover KenKen challenges requiring you to apply both arithmetic and deductive reasoning. These puzzles are designed to stimulate your brain, enhance your concentration, and develop a deeper understanding of mathematical concepts. Math puzzle websites are not only a great way to pass the time but also an effective tool for cognitive development.

Play Our Puzzles


Ready to dive into the world of KenKen? Visit our website and explore our diverse range of puzzles. If you love Mathdoku and start playing KenKen puzzles, you'll challenge yourself with engaging number puzzles that are both fun and intellectually stimulating. Whether you are a just starting out or already an advanced player, our platform has something to offer everyone. Beginner or expert, puzzling for fun or personal challenge, play now and start your journey into the captivating and rewarding world of KenKen!

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.
×