Rules
How to play
Every Yourdoku is a small logic puzzle with exactly one answer. You never need to guess.
There are four levels. Very easy cases use rooms with a set number of places; easy, medium and hard cases are played on a grid.
Very easy: rooms
Put every suspect in a room. Each room shows how many people were in it.
1Rooms and their spaces
Every suspect was in exactly one room. Each room shows empty boxes: that's how many people were in it.
Example: The kitchen has 2 boxes, so exactly 2 suspects were in the kitchen.
2Clues are always true
Read each clue and see what it rules out. Tick a clue once you've used it.
Example: “Ana was not in the garden.” Cross out Ana in the garden.
3Take notes
Use the notes grid: a tick means “was there”, a cross means “was not there”. When a room is full, nobody else fits.
Example: The library has 1 box and Leo is there, so cross out everyone else in the library.
4Objects can help
Some rooms hold an object, like a key or a letter. A clue may say who was with it.
Example: “The culprit was with the candle.” Find the candle's room.
Easy, medium and hard: the grid
The suspects stand on the squares of a board, like a sudoku with people.
1One person per row and column
The board has as many rows and columns as there are suspects. Rows are numbered 1, 2, 3… from the top and columns lettered A, B, C… from the left. Every row and every column holds exactly one person.
Example: Leo is on B3, so nobody else is in row 3 or in column B.
2Objects block squares
Each piece of furniture or evidence sits on one square, and nobody can stand there. Walls split the board into rooms; rooms have no set number of places.
Example: “Ana was beside the piano.” Ana is on one of the four squares touching the piano's square: above, below, left or right.
3Grid clues
Clues can talk about rooms, objects, rows, columns, corners and edges, and about who was diagonally next to whom.
Example: “Marta was in row 3.” “Leo was diagonally next to Ana”: their squares touch only at a corner.
4Place and cross out
Tap a person, then a square to place them. With nobody picked, tap a square to cross it out (nobody stood there). A warning appears if two people share a row or a column.
Example: Leo is on A1, so cross out the other squares in row 1 and column A.
In every case
Whatever the level, the answer is the same: who did it, and in which room.
1Make your accusation
When you're sure, choose the culprit and the room where they were. If you get it wrong, you can keep trying.
Example: “It was Marta, in the library!”