Einstein's Riddle
A classic logic puzzle. Five houses, five nationalities, five colors, five drinks, five smokes, five pets. Use deduction alone to solve it.
How to play
Five houses in a row
5 houses numbered 1-5 left to right. Each has a unique nationality, color, drink, smoke, and pet. No two houses share any value.
Click cells to cycle values
Tap any cell to cycle through possible values. Keep clicking to rotate, click past the last to clear.
Use the clues to deduce
Read each clue carefully. Click a clue to mark it once applied — helps track what you have used.
Check answers (5 times max)
Green = correct, red = wrong. Once all 5 checks are gone and unsolved, grid locks and Reveal appears.
Solve the puzzle
Fill all 25 cells correctly to win. Reset restores all 5 checks. Classic question: who owns the fish?
Start with exact-position clues like "The Norwegian lives in house 1" or "The center house drinks milk" — these anchor the whole puzzle.
| Category | House 1 | House 2 | House 3 | House 4 | House 5 |
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