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57 reviews
Content rating
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About this game

Mathdoku (known as KenKen, Calcudoku) is an arithmetic puzzle that combines elements of sudoku and math.

The rules of Mathdoku are complex. If you are new to this puzzle, you are suggested to read the wiki for details.

We have different levels of KenKen for you to play.
We have:
★An unlimited number of KenKen.
★Different level of KenKen
★Easy KenKen puzzle
★Normal KenKen puzzle
★Hard KenKen puzzle (very difficult KenKen)
★Extremely Hard KenKen (very difficult KenKen)
★A daily new extremely hard challenging KenKen (Daily KenKen)

This is the ultimate KenKen game for android. Play KenKen now!

As in Sudoku, the goal of each puzzle is to fill a grid with digits so that no digit appears more than once in any row or any column (a Latin square). Grids size is 9×9. Additionally, KenKen grids are divided into heavily outlined groups of cells –– often called “cages” –– and the numbers in the cells of each cage must produce a certain “target” number when combined using a specified mathematical operation (either addition, subtraction, multiplication or division). For example, a linear three-cell cage specifying addition and a target number of 6 in a 4×4 puzzle must be satisfied with the digits 1, 2, and 3. Digits may be repeated within a cage, as long as they are not in the same row or column. No operation is relevant for a single-cell cage: placing the "target" in the cell is the only possibility (thus being a "free space"). The target number and operation appear in the upper left-hand corner of the cage.

The objective is to fill the grid in with the digits 1 through 9 such that:

Each row contains exactly one of each digit
Each column contains exactly one of each digit
Each bold-outlined group of cells is a cage containing digits which achieve the specified result using the specified mathematical operation: addition (+), subtraction (−), multiplication (×), and division (÷).

Some of the techniques from Sudoku and Killer Sudoku can be used here, but much of the process involves the listing of all the possible options and eliminating the options one by one as other information requires.
Updated on
Dec 18, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Location, App activity and 2 others
This app may collect these data types
Location, App activity and 2 others
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

52 reviews
A Google user
February 13, 2020
I love this game. For those that don't understand how to play. It's the same premise as sudoku 1-9 in columns and rows, but at the top left hand side of each group of boxes is a total and a mathematical symbol so for example if it says 24 x then the numbers within the boxes must multiply together to equal 24. If it says 21 + they have to add together to equal 21. It's fairly easy once you get started.
4 people found this review helpful
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Cristabel Barnes
January 3, 2022
Enjoyed the game but my old eyes had such a hard time reading the tiny numbers and especially the operations. Would be nice if there was a way to zoom in on the boxes with the clues in them.
1 person found this review helpful
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Kari Cline
October 24, 2022
Very frustrating. Kicked my butt even on the Easy setting. No way to choose easier puzzles and work your way up.
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