Keno pattern generator

It draws a random Keno ticket on the 40-number board, in your browser, sized for the multiplier you target and laid out in one of eight shapes. The multipliers are the standard four-risk Keno paytable — Classic, Low, Medium and High — that most crypto casinos use for 10-from-40 Keno, and each chance is the exact probability of that many picks landing among the 10 numbers drawn from 40. No casino feed is read and nothing you pick is uploaded.

No. A provably fair Keno draw takes 10 numbers from 40 with no memory of earlier rounds and no preference for any part of the board, so every ticket of the same size has the same chance of each hit count. Ten picks hit all ten with odds of 1 in 847,660,528 whether they form a cluster, a straight row or a scatter. The shape changes how a ticket looks, not what it is likely to return.

Random takes any tiles; Cluster grows one connected group; Rows and Columns run along the board and snake round at the edge; Diagonal fills a band of neighbouring diagonals; Mirror is symmetric from top to bottom; Edges uses only the 22 tiles on the outside; Spread never puts two picks in one column, and up to five picks never in one row either. Each press of Generate draws a new arrangement of the chosen shape.

The page takes its random numbers from the browser's Web Crypto generator, crypto.getRandomValues, not from Math.random. The Random shape is a Fisher–Yates draw over all 40 numbers, so every ticket of that size is equally likely. The other shapes start from a random position on the board and build the shape from there. A ticket is not stored or seeded, so the same press never repeats on purpose.

Every multiplier is paid for a set number of hits on a ticket of a set size, so choosing one fixes both. Some multipliers sit in more than one row: at Medium, 100x pays for 4 of 4, 7 of 9 or 8 of 10 hits, and the tool picks the likeliest first — 4 of 4, about 1 in 435 — with the others a click away. The size changes how a ticket pays, not how much it returns: every row returns between 98.65% and 99.07% in the long run.

They are four payout rows for the same draw. With ten picks, Classic pays from 3 hits at 1.40x up to 100x; Low pays from 2 hits at 1.10x up to 1,000x; Medium from 3 hits at 1.60x; High from 4 hits at 3.50x. On ten picks a ticket pays something 79.58% of the time on Low, 48.51% on Classic and Medium, and 19.69% on High.

About 99%. Each row's return to player is the sum of every multiplier times the chance of that hit count, and across all 40 rows of the table it lands between 98.65% and 99.07%. The reference table at the foot of the tool lists the exact figure for every pick count at the selected risk, and the paytable panel repeats it for the ticket on the board.

1 in 847,660,528. There are 847,660,528 ways to draw 10 numbers from 40, and only one of them matches a ten-number ticket exactly. Nine of nine picks is 1 in 27,343,888, because the tenth drawn number can be any of the 31 numbers left off the ticket. The paytable panel shows the odds of every hit count for the ticket on the board.

It plays the ticket on the board against 1,000, 10,000 or 100,000 fresh random draws made in your browser, then compares how often it hit 0, 1, 2… numbers with what the odds say, and counts the draws that paid your target multiplier or more. The returned figure moves around the row's long-run return from run to run, and the biggest cells rarely appear even in 100,000 draws. Run two different shapes and they land in the same place.

The board does: all three draw 10 numbers from 1 to 40 and take tickets of 1 to 10 picks, so the hit odds here apply to each. The multipliers are the standard four-risk table most crypto casinos use. A casino can still set its own payout rows, so check the payout bar in the game before you bet.

Yes. Click any tile to add it to the ticket or take it off, up to ten numbers. The paytable, the odds and the highlighted row of the reference table follow the ticket as it changes, and Copy numbers puts it on your clipboard. The last six tickets stay in a Recent list until you close the tab.

No. The tickets, the dry runs and the Recent list exist only in that browser tab; the tool makes no network request with them and writes nothing to browser storage, so a reload clears everything. The page loads site analytics as every page does, but none of your numbers are part of it.

Yes, on the provably fair verifier. Choose your casino and Keno, then paste your client seed, the server seed the casino revealed when you rotated the pair, and the bet's nonce: the verifier rebuilds the ten numbers that were drawn, so you can count your hits against them. While a seed pair is active its server seed is shown only as a hash, so this works for settled bets, never for a draw still to come.