Zebra vs Clueworthy

Read a clue. Cross off what it rules out. Watch the consequences ripple until one arrangement survives. Zebra is a logic-grid game — the classic "the doctor lives in the red house" puzzle — built around a generator that proves every board before it reaches you. There is exactly one solution, it is always reachable by reasoning, and you are never asked to guess. TIERS THAT NAME THE TECHNIQUE Four difficulty tiers, each named after the reasoning it asks for rather than a vague star rating: cross off, chain, work out before-and-after, test a possibility. The generator computes the exact deduction depth each case requires, so the label is measured, not asserted. WHY YOU'LL STAY • A new case every day, the same one for everyone, generated offline • A streak to protect and a spoiler-free result to share • A free archive: replay any past case from its seed • Hints reveal the next real deduction and name the clue behind it WRITTEN, NOT MACHINE-TRANSLATED The clues ARE the puzzle, so they are composed natively in all five languages — English, German, Arabic, Persian and Kurdish (Sorani) — with proper right-to-left layout, localized numerals, and fonts that actually cover the Kurdish letters ڕ ڤ ڵ ۆ ێ ە. MADE TO BE COMFORTABLE • No timer, no lives, no energy meter • Never colour as the only signal • Fully offline. No account, no sign-up FREE, HONESTLY The daily, the archive, streaks and stats are free with light optional ads. Rewarded video is opt-in and only ever buys a hint. No banner ads on the board, ever. One purchase removes ads forever — no subscription.

Clueworthy is a book of logic grid puzzles that never runs out, and every one has exactly one answer. A built-in solver checks each puzzle using only steps a person can make, so you never have to guess. Each puzzle is a short story and a handful of clues. Mark the grid with checks and crosses until you know who ordered the latte, which dog went first, and who took the last slice of cake. THE DAILY CASE • A new puzzle every day, the same for everyone, always free • Small early in the week, a big 5 × 6 on Sunday • Keep your streak going; a streak freeze covers a missed day HINTS THAT TEACH • A hint tells you which clue to use and what it proves: "Clue 4 tells us the latte wasn't ordered at 9:00" • Tap again and it fills the marks in for you • Show Mistakes when something doesn't add up MADE FOR CAREFUL SOLVERS • Five sizes, from a quick 3 × 4 to a 5 × 6 Master grid • Eight settings: a café, summer trips, a wedding, a garden club, a dog show, a book club, an office mystery, a bake sale • Automatic crosses after every check, undo, drag to cross out, an answer table that fills itself in • Adjustable clue text size, Dynamic Type, VoiceOver, light and dark • iPad shows the whole grid and all the clues side by side • Print a puzzle or save it as a PDF and solve it with a pencil FREE AND PREMIUM The Daily Case is free every day. You also get three more puzzles and three hints a day. Premium unlocks unlimited puzzles and hints, the 5 × 5 and 5 × 6 grids, every past Daily Case, printing and paper styles. Premium is $3.99 a month, $24.99 a year with a 7-day free trial, or $49.99 once for Lifetime. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; manage them in Settings under your name. No account, no ads, no tracking. Terms of Use: https://xzot.github.io/clueworthy/terms.html Privacy Policy: https://xzot.github.io/clueworthy/privacy.html