Lattice lottery generator
Create a lattice lottery from participants and results, then trace the lines to reveal winners
Features
Auto-generate by entering names
Create a lattice lottery by entering participants one per line
Reveal results by tracing lines
Select a name and watch the path progress with animation before opening the result
Freely set 2–40 participants and content
Results can also be freely edited one per line
Recreate the same lottery with shareable URLs
The issued URL displays the same layout on the recipient's screen
How to use
Enter participant names
Input names one per line in the participants field, between 2 and 40 people
Edit result content
Replace the results field line by line with prizes or outcomes
Create the lattice lottery
Select "Create lattice lottery" to generate a lottery with vertical and horizontal lines
Select a name and trace
Press a participant's name to advance along the path and reveal the reached result
Check all results
Select "Show all results" to display a list of names and outcomes
Use cases
Deciding responsibility at a gathering
Fairly determine who handles accounting or forfeits on the spot
Assigning seating and presentation order
Allocate classroom or event seating and presentation sequence
Selecting raffle winners
Draw winners for a gift campaign while displaying the screen
Assigning duties and roles
Distribute cleaning duties and roles among group members all at once
Basic knowledge
Why each result is uniquely determined
A lattice lottery works by a simple rule: descend a vertical line and move to an adjacent vertical line whenever you encounter a horizontal line. Since each horizontal line merely swaps two vertical lines, every participant arrives at a distinct result.
- Repeated swaps：Each horizontal line swaps two vertical lines, and no matter how many are layered, the one-to-one correspondence remains intact.
- Traced backwards yields the same path：Tracing upward from a result always returns to the original participant, so outcomes neither duplicate nor disappear.
Origin and names of lattice lotteries
Lattice lotteries historically featured lines radiating from the center for each participant, resembling the halo of Amitabha Buddha (Amida Nyorai), which inspired the name. The ladder-like form seen today developed later.
- Ladder-like form：The current vertical-and-horizontal arrangement is easier to draw with more participants and easier to conceal results.
- English terminology：In English-speaking regions it is sometimes called "ladder lottery" or "ghost leg," likening it to a ladder.
Safety and privacy
Käsittely selaimessa
Syötetyt tiedot käsitellään vain selaimessasi, eikä niitä lähetetä ulkopuolelle.
Käsittely vain selaimen sisällä
Generating lattice lotteries and determining results käsitellään kokonaan selaimessasi, ja syötetyt tiedot eivät lähde palvelimelle.
Tietoliikenne salattu HTTPS:llä
Sivun lataus salataan myös TLS:llä, eikä kolmannet osapuolet pääse lukemaan sisältöä.
Ei lähetystä kolmansille osapuolille
Syöttötietoja ei lähetetä ulkoisille palveluille, kuten mainontaverkkoihin tai seurantapalveluihin.
Handling shareable URLs
Shareable URLs contain participant names and result contents exactly as entered. Anyone receiving the URL can view the contents, so please be careful about where you share.
Päivitykset
- update #237
Lisätty ladder lottery -luominen, joka paljastaa tulokset visuaalisen viivan seurannan avulla
Suositut työkalut
166 ilmaista verkkotyökalua käytettävissä heti!