APPGREGO'S LIMBO MATCH^TM PRO

LITEKIDS

Grego's Limbo Match^TM
How to Play

A stack of blue chips sits in the centre. Their matching red chips are hidden face-down around the dial. Tap the blue to reveal its number or icon, then flip reds until you find its pair. Match found — you scored! Unused flips become bonus points, so the quicker the find, the better.

Each blue has a flip limit — and it’s tighter than you’d expect, all based on the Critical Survival Threshold (CST) outlined under A389262 in The On-Line Encyclopedia of Integer Sequences (OEIS®). With 5 pairs you get just 3 flips. With 9 pairs, just 6. You need a strategy.

LIMBO — If the very first blue runs out of flips unmatched, tap LIMBO to save it and send it to the bottom of the stack for one last chance.

The cycle and the row — the art and heart of the game

The icon on each red chip also encodes its number — Dog has 4 legs, Hand has 5 fingers, Glasses have 2 lenses. Use this. When you flip a red, its value tells you where to look next. Blue is Dog (4) → flip position 4, find Hand (5) → flip position 5, find Glasses (2) → flip position 2, find Dog — matched! You’ve traced the cycle 4→5→2→4. Now you know exactly where 5 and 2 live for all future blues. Loops controls how long or short these cycles are — mastering them is mastering the game. (Tutorial video ▶)

While the Rower mostly replays a linear sequence from the start to locate each value — often pointing chip by chip — the Cycler’s associative map usually delivers the answer in a single mental step, not unlike “go two blocks, turn left, continue straight before making a right…” or even “go straight, you’ll see it” vs. “it’s next to the obelisk.” On another level, both benefit from the brain’s visual memory, just like in a classic picture matching game.

Following a row strategy can also get you pretty high scores, especially when combined with blind-guess Lotto, Limbo and pinning. But all those tools are available to the Cycler too, along with some sly shortcut and bumphole tactics. And as pairs grow, the Rower starts to sweat…

The extras

• 🍀 Lotto — Tap the clover before revealing the blue, then blindly pick a red. Correct = massive bonus. Wrong = costs one flip, nothing more.
• 📌 Pin — After flipping a red, tap the pin to rotate the dial so that chip lands on its own position. A guaranteed future find.
• 👁 Eye — Tap to peek at all reds at once. Tap again to hide them. One use per game.
• ☀️ / ☽ Sun & Moon — Toggle between dark Moon mode and bright Sunny mode for outdoor play. Safe to switch any time, even mid-game.
• ❓ Tips — A long collection of short one-liners to help you master the game. Tap to open.

Pairs = how many chips. Start small.

Finish a game and tap the envelope to submit your score to the world rankings.

How World Ranking works

Your World Rank is a single global number generated by the Grego Limbo Ranking System (GLRS), which combines four things:

• Achievement — how close to the category Jackpot you scored.
• Speed — your time relative to a per-category par. Faster earns a bonus, slower a penalty — both bounded so neither extreme can dominate the ranks.
• Difficulty — higher pair counts contribute more, but with diminishing returns, so a perfectly played 13P stays competitive against a half-finished 21P.
• Loop type — Random > Longest > Over Flip Limit > Up to Flip Limit > Unit-or-Pair > Unit, reflecting the cognitive load of memorising longer cycles.

A perfect game in any category gives the maximum possible rank-score for that category — calibrated to the Jackpot asymptote.

Family — Three ways to play: tap the badge next to the title to switch. PRO (you’re here) for the full feature set, LITE for quick games, and KIDS for the youngest. Open them: ← LITE · KIDS ▶

App — Coming soon as a Progressive Web App you can install directly to your home screen.

Luck for the peak —
brains for the path!
Grego

Get an email when a new WR is set

Disclaimer

Apple®, Google®, YouTube®, Veritasium®, The On-Line Encyclopedia of Integer Sequences® (OEIS®), American Academy of Arts and Sciences, Institute of Electrical and Electronics Engineers (IEEE®), Aarhus University (Denmark), University of Texas, World Chess Hall of Fame & Galleries, Psychology Today, ResearchGate, The Bridges Organization, Institute for Advanced Study (IAS) and World Wide Web Consortium (W3C®) products, services and trademarks featured/referenced/linked belong to their respective owners who retain all corresponding intellectual property rights and are used by permission, courtesy and/or fair use.

Champions & Data (GDPR)
By pressing the envelope button to submit your score for validation, you consent to your chosen nickname and game result (score, pairs, loop setting, time) being stored on the game server and publicly displayed in the Champions list. No email address or other personal information is stored or displayed. Your nickname and score appear only after validation.

WR Notification Emails (GDPR)
If you sign up via the Notify column to receive World Record alerts for a category, your email address is stored on the game server in a private (non-public) file used only to send those notifications. You can choose instant alerts (email each time a new WR is set) or a weekly digest (one combined email on Friday mornings). We use double opt-in: you must click a confirmation link before any alerts are sent. Each notification email includes a one-click unsubscribe link. We never share, sell or use your address for any other purpose. The address is automatically removed from our records when you click unsubscribe.