Griddr — Deduction Puzzles

Explore Griddr's wide array of elimination style deduction puzzles. Pick the correct answer in a grid, reveal a clue, and work out the rest. Deduction puzzles on Griddr never require guessing.

40 deduction puzzles available:

How to play

The objective is to select the correct option in each square of a puzzle to complete the puzzle.

When some squares are guessed correctly, additional clues appear on the side to help you work out the rest.
Hovering over a clue highlights the squares that clue applies to.
Clicking a clue crosses it out and moves it to the bottom of the list, out of the way.
All puzzles can be solved without requiring any guessing.

Accounts & Supporters

Puzzle statistics become available once you complete that puzzle, whether or not you have an account.
The solution guide for each puzzle is available on the puzzle page once you complete it.
Supporters gain access to the puzzle editor.
If you would like to support Griddr, first create an account to become a member. You can support Griddr for as little as $5 to enjoy the perks.