PricedIn is a daily price-guessing game that tests your knowledge of what things actually cost in 6 different years. From fast food to modern fashion, you have three tries to nail the price for each year. It's "The Price is Right" meets Wordle!
Rularoo
You don't guess the answer. You guess the rule. Test number sequences, learn from FITS and FAILS, then commit. Three new deduction puzzles every day, with no login or download.
What is Rularoo?
Rularoo is a daily deduction game that flips the usual puzzle formula: instead of guessing the answer, you guess the rule behind a set of numbers. Each day presents three puzzles of increasing difficulty, based on the classic 2-4-6 task in cognitive psychology.
How to play Rularoo
You are shown a sequence of numbers (like 2 4 6) that follows an underlying rule. You propose rules and test them by submitting your own sequences, and the game tells you whether each probe FITS or FAILS. Once you are confident, you commit to your final guess of the rule.
Tips & strategy
- Test sequences you expect to fail, not just ones that confirm your current idea.
- The obvious rule is usually too narrow; think about what simpler or broader rule could also explain the numbers.
- Pay attention to what ranges and operations are in play (e.g., negatives, sums, gaps) depending on the difficulty.
- Use your probes sparingly and deliberately; each one gives information about the rule's boundaries.
- In hard puzzles with four terms, consider that the rule may combine two conditions at once.
Frequently asked questions
Is Rularoo free to play?
Yes, every puzzle is free to play in the browser, including today's puzzle and the full archive.
Does Rularoo require an account or download?
No login or download is needed to play in the browser.
How often do new puzzles appear?
Three new deduction puzzles are released every day.
What does the Rularoo app offer?
The app adds features like a puzzle waiting each morning, a streak that survives a missed day, and a Coach that helps identify which probe cost you the round.
What is the 2-4-6 task?
It's a classic psychology experiment, created by Peter Wason, that shows how people tend to seek confirming evidence rather than trying to disprove their own hypotheses.
Where to play
Play Rularoorularoo.com · free, new puzzle daily
Keep your curiosity going
Your next daily obsession
More games to explore after Rularoo.
Four new mystery charts every day, with the satisfaction of figuring out what the data represents from clues alone.
Stop a daily outbreak. Vaccinate a few people to break up a social network, then quarantine one person a day as the infection spreads. Save as many people as you can and share your score. Inspired by the 2014 game Vax!.
Nine daily puzzle games: six logic games with calibrated difficulty, no blind guessing, and spoiler-free hints, plus three word games built around deduction and wordplay.
Answer the arithmetic problems as quickly as you can.
Divide the number board into islands that match the target sums.
Discussion 0
No comments yet — be the first to share a strategy.