Sixteen blank glass and gold tiles floating in a four by four grid above the clouds, a few of them softly lit (AI-generated image)
AIAI-generated image

The daily crypto puzzle: guess the term and sort four groups

Two short puzzles a day, the same for every visitor, built from the Omega.one glossary. Guess one market structure term from five clues, then find the four hidden groups on a board of sixteen words. Every answer links to the page that explains it.

Omega.one editorsEdition: October 29, 20267 min read

Today's two puzzles

This puzzle needs JavaScript. It reveals five clues about one market structure term, one at a time.

How to play

  1. Read the clue, then type a term or pick one of the four buttons.
  2. A wrong guess or a skip opens the next clue. Five clues, five tries.
  3. Solve it on as few clues as possible to keep the streak going.

This puzzle needs JavaScript. It shows sixteen market structure words that form four groups of four.

How to play

  1. Select four tiles that share something, then submit them.
  2. Four mistakes end the board. Three right out of four counts as one away.
  3. Solved rows run from easy in gold to tricky in rose.

A new pair of puzzles every day at local midnight. Progress and streaks stay in this browser; nothing is sent anywhere.

In 30 seconds

The daily crypto puzzle is two small word games about market structure. In Guess the term, one term from the glossary is hidden behind five clues that appear one at a time, and each wrong guess or skip opens the next clue. In Four groups of four, sixteen words hide four groups, such as order types or regulators, and four mistakes end the board. Both change every day.

How the daily crypto puzzle works

Every day the page picks one term for the guessing game and one board for the grouping game. The choice depends only on the calendar date, so everyone who opens the page on the same day sees the same two puzzles and can compare results. A new pair appears at midnight in the visitor's own time zone.

There is nothing to sign up for. Progress is kept in the browser that played, which means a half-finished puzzle is still there after a reload, and a finished one shows its result instead of starting again. The guessing game also keeps a streak: the number of days in a row it was solved. Clearing the browser's site data resets both games.

Each puzzle takes a few minutes. They are written for anyone who has read a guide or two on this site, but the clues are fair to a newcomer too, because the last clues describe the term in plain words. When a game ends, the answer links to its entry in the glossary, and from there to the full guide.

Guess the term: five clues, five tries

The first clue names the term's family, one of six: venues, trades and traders; orders and prices; costs, risks and abuse; DeFi building blocks; market plumbing; rules and history. The four answer buttons always come from that same family, so the first clue narrows the field without pointing at one button. The second says where the term turns up in practice. The third lists close relatives, the words that usually sit next to it in a sentence. The fourth explains the term in plain words, and the fifth gives its shape: the number of words and letters and the first letter.

A guess can be typed into the field, with suggestions as the letters come in, or picked from the four answer buttons under the clues. A wrong answer is struck through and opens the next clue; a skip does the same without a guess. Guesses that match nothing in the list, or repeat an earlier one, cost nothing. Typing ignores capital letters and small typos, and common short forms such as AMM, MEV, RFQ or VWAP are accepted.

Solving on the first clue is rare, and that is the point: the early clues reward knowing how market makers, order types and regulation fit together, while the late ones teach the definition. Every fifth win earns a shield, which absorbs one miss so that a long streak survives a bad day.

A brass magnifying glass over a single glowing blank tile on a cloud, gold dust drifting through the lens (AI-generated image)
AIAI-generated image
The five clues, in the order they appear (example: matching engine)
ClueWhat it givesExample
1. FamilyOne of six broad groupsMarket plumbing
2. Where you meet itWhere it shows up in practiceThe core of every exchange
3. Close relativesTerms that usually appear next to itPrice-time priority, order books
4. In plain wordsA one-sentence definitionThe system that pairs incoming buy and sell orders by price and then by time
5. The lettersWord count, letter count, first letter2 words, 14 letters, starts with M

Four groups of four: the market structure edition

The grouping board shows sixteen words in a grid. They belong to four hidden groups of four, and the task is to find them. Select four tiles and submit; if all four belong together, they lock into a colored row with the name of the group. Three right and one wrong gives a hint that the guess was one away. Four mistakes end the board and reveal the rest.

The groups range from easy to tricky, and the color of a solved row shows which is which. A gold row is the easiest group, such as four order types or four regulators. The fourth group is usually wordplay: four words that all fit in front of pool, say, or four pieces of trading slang. Several words are chosen to look as if they belong to two groups at once, so the safest strategy is to solve the group that can only be one thing first.

The boards draw on the whole site: venues from the guides to dark pools, OTC trading and decentralized exchanges, costs from the slippage calculator, rules from the regulation guide and history from the ICO era and the timeline.

Four stacks of gold-edged cards tied with ribbons of different colors, resting on a cloud under a crescent moon (AI-generated image)
AIAI-generated image

Using the puzzle to learn crypto market structure

A daily puzzle works as spaced repetition: a few terms a day, met again weeks later in a different board or as a different answer. The guessing game draws on 36 terms and the grouping game on ten boards, so the same idea comes back from several angles. A term missed in the guessing game is worth reading in full the same day, while the clues are still fresh.

The terms in the guessing pool are listed here for study, in the same six families that the first clue names. Each one links to its glossary entry.

Venues, trades and traders: Dark pool, OTC desk, Market maker, Request for quote, Block trade.

Orders and prices: Order book, Limit order, Market order, Iceberg order, Midpoint, Spread, Volume-weighted average price.

Costs, risks and abuse: Slippage, Price impact, Gas fee, Impermanent loss, Counterparty risk, Maximal extractable value, Front-running, Wash trading.

DeFi building blocks: Automated market maker, Liquidity pool, Concentrated liquidity, Atomic swap, Stablecoin.

Market plumbing: Smart order router, Matching engine, DEX aggregator, Fragmentation.

Rules and history: Best execution, MiCA, BitLicense, GENIUS Act, Regulation NMS, Initial coin offering, Whitepaper.

How puzzles are chosen and what the browser keeps

The schedule is arithmetic. The number of days since the first puzzle picks a place in a shuffled list of the pool, and the shuffle is the same for every visitor. Nothing repeats until the whole pool has been used once, then a new shuffle starts. Because the choice depends on the visitor's local date, two people in distant time zones can see different puzzles for a few hours around midnight.

The browser keeps three small records under this site's name: the attempts made on today's guessing game, the current streak with its shield, and the four-tile submissions on today's board. No account or server is involved, and nothing about the games is sent anywhere. The cookies page lists what the site stores in the browser and how to clear it.

The answers are in the page itself, so the puzzle is not a contest and has no prizes. It is a way to check, in a couple of minutes a day, whether the vocabulary of market structure has stuck. For a hands-on version of the same ideas, Fill the block turns routing a large order into a game.

Where the puzzles come from

Every clue and every board was written by the Omega.one editors from the glossary and the guides on this site, and checked against them. Both games run entirely in the browser, without any outside service. A clue that seems wrong can be reported through the contact page.

Short answers

Daily crypto puzzle FAQ

When does the daily crypto puzzle change?

Both puzzles change at midnight in the visitor's own time zone. The choice depends only on the date, so everyone who plays on the same calendar day gets the same term and the same board.

Do I need an account to keep my streak?

No. The streak and the progress on both games are kept in the browser that played. Playing on another device, in a private window or after clearing site data starts from zero.

What counts as a correct guess?

The full name of the term or a common short form, such as AMM for automated market maker. Capital letters, punctuation and small typos are ignored. A guess that matches nothing in the list costs nothing, but a wrong term from the list opens the next clue.

How does the grouping game score mistakes?

Four mistakes end the board. A submitted set of four that contains three tiles from one group and one from another counts as a mistake, with a hint that it was one away. Repeating a set that was already tried does not count.

Can I play past puzzles?

The page always shows today's pair. Past boards and terms come back when the schedule cycles through the pool again, which keeps the daily rhythm and gives a second chance at a missed term.

Where can I learn the terms before playing?

The glossary defines every term in the guessing pool and links to the guide that explains it in depth. The study list on this page groups the terms by family, which matches the first clue of the guessing game.

Try it

Tools and games, no sign-up

All of them run in the browser and send nothing anywhere. The numbers are illustrative, never live prices.

Slippage calculatorPrice impact, worked outSet an order size and a pool depth and see the price impact, the average fill and what the impact costs.Open it
Midpoint simulatorLit book or dark poolSend a block into an illustrative order book and compare the fill with a cross at the midpoint.Open it
Fill the blockRoute one big orderSplit a bitcoin block across four venues, send it and score the fill against the best mix.Open it