Logic Puzzles
Exercise your deductive reasoning with these Einstein-style logic puzzles. Use the clues to figure out how different items are related. Click cells to mark them as possible (✓) or impossible (×).
About Logic Grid Puzzles
Logic grid puzzles (often known as Einstein's riddles or zebra puzzles) challenge you to use deductive reasoning to determine the relationships between correct items. You are given a scenario and a set of clues giving you just enough information to solve the puzzle.
By using the grid to cross-reference items, you can visually eliminate impossible combinations and deduce the correct ones. Marking an "X" indicates a pair is impossible, while a "✓" indicates a match. When a match is found, you can often eliminate other possibilities in that row and column.
Benefits of Logic Puzzles
Deductive Reasoning
Evaluating clues and eliminating possibilities helps sharpen your ability to draw logical conclusions from limited information.
Working Memory
Keeping track of multiple constraints and their implications exercises your short-term memory and cognitive load management.
Focus & Attention
The need to carefully read each clue and ensure no detail is missed improves attention to detail and concentration span.
Systematic Thinking
Developing a systematic approach to filling the grid and checking implications fosters structured problem-solving habits.
How to Play
1. Read the Clues: Start by reading the provided clues carefully. Each clue gives a piece of positive or negative information.
2. Mark the Grid: Click a cell once to mark it as impossible (X) if the clue rules out a combination. Click again to mark it as certain (✓) if you deduce a match.
3. Use Deductions: When you mark a check (✓), you know that no other item in that row or column can be true, so appropriate X's will be filled automatically in some versions or you should fill them manually.
4. Solve the Puzzle: Continue until every item is correctly matched with its counterparts.