PlockySmall games. Big fun.
All gamesPuzzle / Free browser game

Calcudoku

YOUR NEXT LITTLE OBSESSION

Hit every cage's target.

Free to play · Right here in your browser
A LITTLE FRIENDLY COMPETITION

Community leaderboard

Best fastest solves, shared by players. Lower is better.

Community submissions · unverified
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A LITTLE ABOUT THE GAME

Hit every cage's target.

Fill an n-by-n grid so that every row and every column holds each digit from 1 to n exactly once. Thick walls cut the grid into cages, and each cage shows a target and an operation: its digits must add, multiply, subtract or divide to make that target, and a one-square cage simply gives you its digit. Every puzzle has exactly one solution that logic alone can find, no guessing. Notes let you pencil in candidates, and undo and hints are there when you need them. The 4×4, 6×6 and 9×9 grids each have a Plocky leaderboard for the fastest solves.

Arithmetic cages on a Latin square4×4, 6×6 and 9×9 gridsEvery puzzle solvable by logicFastest-solve leaderboardsNotes, undo and hints

Progress and preferences stay in this browser. Opening the game in another browser or device starts fresh.

How to play

Click / tap
Pick a square, then a digit
Arrows, 1–9
Move and fill by keyboard
Backspace, 0
Clear the square
N
Notes on or off
U, Ctrl+Z
Undo

Tap a square, then a digit on the keypad below the grid.

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