Yandex Games
Calcudoku. Mathematical Sudoku

Calcudoku. Mathematical Sudoku

53Yandex Games rating6+
PuzzlesBoard
GameSB

Similar games

Woodoku71
Woodoku
Meowdoku84
Meowdoku
Number Match74
Number Match
Jewel Coloring: Crystal Sorting85
Jewel Coloring: Crystal Sorting
Nonogram - Picture Cross71
Nonogram - Picture Cross
Solitaire Tripeaks: A Great Journey73
Solitaire Tripeaks: A Great Journey
Mahjong Master: Tile Sort & Match
Mahjong Master: Tile Sort & Match
Block Puzzle Sudoku68
Block Puzzle Sudoku
Killer Sudoku64
Killer Sudoku
Call Brainrot
Call Brainrot
Blackjack+42
18+
Blackjack+
PixArt65
PixArt
  • User agreement
  • Privacy policy
  • Technical support
Calcudoku. Mathematical Sudoku

Calcudoku. Mathematical Sudoku

6+
  • GameSB
  • ·
  • Puzzles
  • Board
53Yandex Games rating
Log in with your username to reliably save your game progress and achievements

About game

An engaging mathematical puzzle that combines Sudoku logic with arithmetic challenges. Fill the grid with numbers so that they don't repeat in any row or column, and within the highlighted 'cages', the specified arithmetic operation (+, −, ×, ÷) must produce the indicated target number. The game offers grid sizes from 3×3 to 9×9 and three difficulty levels — from beginner to expert — making it enjoyable for both children and experienced number puzzle enthusiasts.

How to play

Fill the grid with numbers so that each digit appears only once in every row and column. The grid is divided into "cages" marked by thick lines. In the corner of each cage, an arithmetic target and an operation sign (+, −, ×, ÷) are shown. The numbers inside the cage must produce that result: for example, "6+" means the sum of the numbers equals 6, "12×" means the product equals 12, "3÷" means the quotient of the larger number divided by the smaller equals 3, and "2−" means the difference between the larger and smaller numbers equals 2. A single-cell cage already contains its given number. The "Notes" button lets you place candidate marks in empty cells — handy for tricky combinations. Mistakes are highlighted, and three errors end the game. Use hints (earned by watching ads) to reveal the correct value in a selected cell. A timer tracks your solving time. The game begins with choosing a grid size (from 3×3 to 9×9) and a difficulty level.
  • desktop
  • brain training
  • daily
  • mind
  • classic
  • cool
  • math
  • mobile
  • multiplication
  • attention
  • memory
  • russian
  • simple
  • professional
  • learning
  • number
  • hardcore
  • strategy board
  • sudoku
  • japanese

Game info

Age rating
6+
Platforms
Authorization support
Yes
Localization
Turkish, Russian, English
Screen orientation
Release date
Jul 7, 2026
Cloud saves
No
Categories
  1. All games
  2. Puzzles
  3. Calcudoku. Mathematical Sudoku
Feedback
Games for you
WoodokuWoodoku71
MeowdokuMeowdoku84
Number MatchNumber Match74
Jewel Coloring: Crystal SortingJewel Coloring: Crystal Sorting85
Nonogram - Picture CrossNonogram - Picture Cross71
Solitaire Tripeaks: A Great JourneySolitaire Tripeaks: A Great Journey73
Mahjong Master: Tile Sort & MatchMahjong Master: Tile Sort & Match
Block Puzzle SudokuBlock Puzzle Sudoku68
Killer SudokuKiller Sudoku64
Call BrainrotCall Brainrot
Blackjack+Blackjack+42
PixArtPixArt65