Blog Articles

Discover the latest updates, usage guides, and case studies for Amida-san.

Social Media GiveawayInfluencer MarketingFollower GiveawayX Twitter Instagram

How to Run a Fair Social Media Giveaway: Pick a Winner and DM Them Directly

Run fair giveaways for your X (Twitter) and Instagram followers with an amidakuji draw. When participants join with their social media handle, the winner's @username appears right in the results -- so you can DM them directly.

Organizer PlanFeature GuideBusiness UseEvent Operations

Every Organizer Plan (Pro) Feature, Explained: A Guide to Running Amidakuji for Business and Communities

A complete tour of everything the Organizer Plan (Pro) unlocks, organized around three themes: fairness, operational efficiency, and business use. From re-draws and participation restrictions to result downloads and an ad-free experience, see all the tools for running group amidakuji at companies, online communities, and influencer giveaways.

Ad-FreeBusiness UseOrganizer PlanEvent Operations

Ad-Free Lottery: A Cleaner Draw for Work and Classroom Use

Don't want banner ads showing up on the projector during a company meeting? The Organizer Plan (Pro) hides ads on the participant-facing result page, giving you a clean draw to share on big screens and in screenshots.

Event SuspensionOperationsMistake RecoveryOrganizer Plan

Cancel a Lottery You Created by Mistake: Suspend and Restore Events

Shared the wrong lottery URL or spotted a setup mistake? The Organizer Plan (Pro) lets you suspend an event so no one can join or edit it, then restore it later if you change your mind.

Event DecorationBrandingOrganizer PlanEvent Operations

Decorate Your Amidakuji Event Page: Branding with Themes, Images, and Descriptions

Learn how to brand your amidakuji participation page with your own colors. With the Organizer Plan (Pro), you can customize the event page with themes, custom images, and descriptions, giving company events and campaigns a consistent, special feel.

Long-Term StorageRecords ManagementOrganizer PlanEvent Operations

Keep Lottery Results for a Full Year: 365-Day Long-Term Storage

Need to look up a draw from six months ago? Free plan events are available for 180 days, but the Organizer Plan (Pro) extends availability to 365 days, ideal for recurring operations and yearly events.

Account LockMisclick PreventionOrganizer PlanEvent Management

Stop Participants From Starting the Draw Early: Organizer-Only Account Lock

Tired of someone hitting the draw button before everyone is ready? Events created on the Organizer Plan (Pro) are locked by default so that only the organizer can edit settings or start the draw.

ReceiptsExpense ReportsBusiness UseOrganizer Plan

Get a Receipt for Your Lottery Tool: PDF Receipts for Expense Reports

Need a receipt to expense Amida-san at work? Pro subscribers can download PDF receipts from the customer portal at any time, and edit the company name and address right from the same screen.

RedrawFairnessOrganizer PlanEvent Operations

How to Redraw a Lottery Without Losing Trust: Fair Re-Draws After the Result

Need to redraw a lottery after the result is final? Learn how the Organizer Plan (Pro) re-draw feature lets you redo a draw fairly while keeping every past result in an immutable history, with full support for adding or removing participants.

Result DownloadExcelCSVOrganizer Plan

Export Lottery Results to CSV and Excel: Manage Draws as Real Data

Stop transcribing screenshots into spreadsheets. The Organizer Plan (Pro) lets you download every lottery result as CSV or Excel without limits, so duty rosters, shift schedules, and team rosters drop straight into your existing workflow.

SecurityBusiness UseEmail Domain RestrictionOrganizer Plan

Members-Only Lottery: Lock Your Draw to Your Company or School Domain

Worried that your lottery URL might leak to outsiders? Learn how the Organizer Plan (Pro) lets you require login and restrict participation to specific email domains, so only your team or school can actually join.

Participant RemovalOperationsOrganizer PlanEvent Management

Remove and Clean Up Lottery Participants Before You Draw

Duplicate joins, accidental participants, and people who already dropped out can quietly skew your draw. The Organizer Plan (Pro) lets organizers remove participants individually, so every draw starts from a clean roster.

Amida3DEvent PresentationLive EventsOrganizer Plan

Amida3D Animation: Turn Your Lottery Draw Into the Highlight of the Event

Make every lottery feel like a live show. Amida3D renders the draw as a cinematic 3D ball run, scales up to 299 participants, and is included unlimited in the Organizer Plan (Pro).

AnnouncementFeaturesVideo

Watch Amida-san in Action - A Fair and Transparent Lottery Tool

See how Amida-san works in a 50-second video. Create and share online amidakuji for fair drawings. Perfect for event lotteries, team division, and role assignment.

CondominiumBoard SelectionHOAFair LotteryProperty Management

Condominium Board Member Selection: A Complete Guide to Avoiding Disputes

A practical guide for fair board member selection in condominium associations. Covers transparent lottery methods, online meeting integration, common disputes and how to prevent them.

EngineeringPair ProgrammingCode ReviewAgileTeam DevelopmentKnowledge Sharing

How to Fairly Assign Pair Programming Partners and Code Reviewers on Engineering Teams

A practical guide to fair pair programming pairing and code review assignment. Learn best practices for promoting knowledge sharing and preventing knowledge silos in engineering teams.

HealthcareNursingCaregivingShift ManagementNight ShiftsFairness

Shift Management in Healthcare - Fair Scheduling Tools for Hospitals and Care Facilities

How to fairly assign night shifts and holiday duties for nurses and caregivers. A guide to transparent shift management that reduces staff dissatisfaction, prevents burnout, and lowers turnover.

HRRecruitmentTrainingEvaluationFairnessHuman ResourcesTalent Development

Fair Role Assignment Tools for HR Professionals [Recruitment, Training, Evaluation]

How to ensure fairness in HR operations: interview scheduling, new hire training groups, evaluator assignments, and more. Introducing transparent tools that work for large-scale recruitment of 200+ candidates.

Hybrid WorkRemote WorkFairnessDecision MakingLottery ToolsOnline Meetings

Fair Decision-Making Tools for the Hybrid Work Era [2026 Edition]

How to achieve fair role assignments, lotteries, and decision-making in hybrid work environments where office and remote workers coexist. Introduces transparent tools that satisfy both in-person and remote participants.

community associationneighborhood associationofficer electiondigitizationlocal communityDXaccessibility

Going Digital in Community Associations [2026 Complete Guide] Officer Elections & Event Management

Learn how to digitize officer elections, event management, and duty scheduling for community and neighborhood associations. Solve traditional paper lottery and hand-raising issues with user-friendly online tools that work for all ages.

Online ClassesWebinarRandom SelectionEducationUniversityE-LearningRemote Education

Random Selection Tools for Online Classes and Webinars [For Educators]

Learn how to implement fair random calling, group formation, and presentation order in online classes and webinars. Discover tools that give every student a chance to participate, even in large-scale lectures.

salesSalesOpslead distributionsales managementB2BCRMfairness

Building a Fair Lead Distribution System for Sales Managers

A practical guide to eliminating dissatisfaction and improving close rates through fair, data-driven lead distribution. Covers lead scoring, skill matrices, distribution rules, and transparent tools for optimizing sales team performance.

Shareholder MeetingsBoard of DirectorsCorporate GovernanceIRCompliancePublic Companies

5 Scenarios Where Lotteries Are Needed at Shareholder and Board Meetings [For Public Companies]

From questioner selection at shareholder meetings to auditor appointments and IR event participant draws -- we explain the key scenarios where public companies need transparent lottery processes, along with methods that satisfy both compliance requirements and record-keeping.

Year-End PartyNew Year PartyCompany MeetingPrize DrawingHoliday SeasonOnline Event2026

2026 Year-End Party Prize Drawing Complete Guide: Corporate Events and Celebrations

How to run exciting prize drawings at year-end parties, New Year gatherings, and company-wide meetings in 2026. Covers in-person, virtual, and hybrid formats with transparent drawing tools for large-scale events.

Ghost LegHow to UseBeginnersRulesInstructions

How to Make and Use Ghost Leg Lottery - Paper and Online Instructions

Step-by-step instructions for making a ghost leg lottery on paper and using the online version. Covers common mistakes and how to choose between paper and online for different situations.

Coworking SpaceShared OfficeHot DeskingFacility ManagementMember Satisfaction

Desk Lottery Ideas for Coworking Spaces and Shared Offices to Boost Satisfaction

How to run fair desk lotteries in coworking spaces and shared offices with hot-desking. Practical management tips to improve member satisfaction and prevent disputes.

Google MeetLotteryOnline MeetingsGoogle WorkspaceFree Tools

3 Ways to Run a Lottery in Google Meet Meetings [2026 Updated]

Learn how to fairly conduct prize drawings and role assignments in Google Meet meetings. Compare 3 no-registration methods and discover Google Workspace integration benefits.

RecruitmentInterviewsHRCandidate ExperienceCX

Interview Order Selection: Fair Methods to Improve Candidate Experience (CX)

How to fairly determine interview order. Practical approaches to mitigate primacy and recency effects while improving Candidate Experience (CX).

Lightning TalkLTInternal Study SessionEngineeringPresentation Order

Best Ways to Decide Lightning Talk Presentation Order at Internal Study Sessions

How to fairly decide presentation order at engineering lightning talk (LT) sessions. Covers methods that address nervousness bias, preparation time fairness, and psychological burden.

No RegistrationLottery ToolsFreeNo Email RequiredPrivacyCorporate Use

No-Registration Lottery Tools Compared: No Email or Account Required [2026 Guide]

Compare 7 free lottery and random selection tools that require no email, no sign-up, and no account creation. Find transparent, privacy-friendly options suitable for corporate use.

PTAParent-Teacher AssociationOfficer SelectionSchoolConflict Prevention

How to Run a Smooth and Transparent PTA Officer Selection Process

Solve common PTA officer selection challenges. Learn transparent, fair methods that prevent disputes, eliminate favoritism, and ensure every parent feels the process is equitable.

salescustomer assignmentlead distributionpreventing silossales management

How to Make Customer Assignment Fair in Sales Teams: Preventing Silos and Ensuring Transparency

A practical guide to fair lead distribution and customer assignment for sales teams. Learn how to prevent knowledge silos, ensure transparency, and boost overall team revenue.

SlackDrawing ToolsIT CompaniesStartupsRemote Work

Slack-Compatible Drawing Tools: Alternatives and Recommended Methods

A guide to running drawings and random selections in Slack. Covers Slack bots, slash commands, and external tool integrations -- optimal solutions for IT companies and startups.

Microsoft TeamsOnline MeetingsLottery ToolsRemote WorkEnterprise

Lottery Tools for Microsoft Teams Meetings [2026 Guide]

Compare methods for running fair lotteries in Microsoft Teams meetings. From the limitations of built-in features to external tool integration and ensuring transparency through URL sharing, discover practical solutions.

UniversitySeminar AssignmentResearch LabEducationFairness

How to Fairly Assign University Seminar Groups and Research Labs

A practical guide to fair seminar and research lab assignments at universities and colleges. Best practices for preference coordination, selection, and lotteries to boost student satisfaction and prevent disputes.

WeddingReceptionOnline WeddingPrize DrawingHybrid

Prize Drawing Ideas for Online and Hybrid Wedding Receptions

Creative prize drawing methods that engage both in-person and remote guests at online and hybrid wedding receptions. Transparent, equal, and entertaining lottery ideas from preparation to day-of execution.

Zoombreakout roomsgroup assignmentonline trainingwebinar

Limitations of Zoom Breakout Room Auto-Assignment and Fairer Alternatives

Explore the problems with Zoom's built-in breakout room auto-assignment and discover transparent, fair alternatives that improve satisfaction in training sessions and webinars.

ZoomOnline MeetingsLottery ToolsFreeNo RegistrationPrize Drawing

5 Free Lottery Tools for Zoom Meetings -- No Registration Required

How to run fair prize drawings, decide presentation order, and assign roles in Zoom meetings. Compares 5 free tools that require no registration, with the best option for each scenario.

Community ManagementOnline CommunityStudy GroupsMember Retention

Keys to Successful Community Management: Growing and Retaining Members

A practical guide to running successful online communities, study groups, and salons. Covers strategies for boosting member engagement, planning events, and improving retention.

event planningevent managementpartiescorporate events

The Complete Event Planning Guide: Tips for Successful Execution

A comprehensive guide to planning and running successful corporate events, parties, and seminars. Covers engaging programming, contingency planning, and ideas that keep audiences excited.

New Employee TrainingHuman Resource DevelopmentOnboardingTurnover Prevention

New Employee Training Ideas for Better Engagement

A practical guide to designing training that helps new employees thrive. Covers ideas for preventing early turnover, building a sense of belonging, and blending online and offline approaches.

PresentationsPresentation OrderFairnessDecision Making

How to Decide Presentation Order [Fair and Convincing Methods]

Explore how presentation order affects outcomes and learn fair, transparent methods for determining the sequence. Discover ways to reduce the disadvantage of going first and create a process everyone can accept.

PrizesEvent PlanningYear-End PartyCorporate Events

The Complete Guide to Prize Selection: Best Picks by Budget and Occasion

Learn how to choose prizes that people will love for year-end parties and corporate events. Practical tips covering budget tiers, occasion-specific recommendations, and distribution best practices.

Remote WorkOnline MeetingsEngagementZoomTeams

10 Ways to Boost Remote Meeting Engagement [Zoom & Teams Tips]

Practical techniques to overcome remote meeting fatigue and increase participant engagement. 10 actionable methods you can use in your next Zoom or Teams meeting.

role assignmentPTAcommunity associationconflict prevention

How to Assign Roles Without Conflict: PTA, Community Groups, and Workplaces

Practical methods to avoid disputes when assigning roles in PTAs, neighborhood associations, and workplaces. Covers fair decision-making, workload visualization, and opt-out rules for conflict-free role assignment.

Seating ArrangementPsychologyMeeting ManagementCommunication

The Psychology of Seating Arrangements [Layout Strategies for Meetings and Events]

Explore the psychological effects of seating arrangements. Learn optimal seat layouts for meetings, training sessions, and events, along with arrangement patterns that enhance communication.

TrainingGroup WorkLearning EffectivenessHuman Resource Development

How to Maximize Training Effectiveness with Group Work Design

A guide to designing group work that boosts learning outcomes in corporate training and seminars. Covers evidence-based team formation and facilitation techniques.

workshopfacilitationparticipatory eventslearning design

The Workshop Facilitation Handbook: Designing Participatory Events

A practical guide to designing and running workshops where participants actively learn. Covers facilitation techniques, time management, and choosing the right icebreakers.

ghost legfairnessteam selectioncomparisonrandom number generator

Ghost Leg vs Random Number Generator: Which Is Fairer for Team Selection?

A comparison of Ghost Leg (Amidakuji) and random number generators for team selection. We examine transparency, fairness, and reliability through mathematical proof and practical analysis.

Online DrawingVirtual DrawingEvent ManagementFair DrawingBest Practices

How to Run a Fair Online Prize Drawing: The Complete Guide

A guide to running successful online prize drawings. Learn common mistakes to avoid and step-by-step procedures for transparent virtual drawings.

virtual team buildingremote teamsghost legteam activitiesonline games

10 Creative Ways to Use Ghost Leg for Virtual Team Building

Discover 10 virtual team building activities using Ghost Leg (Amidakuji). A step-by-step guide perfect for remote teams, online icebreakers, and team events.

MathematicsStatisticsFairnessScientific Proof

How to Scientifically Prove Lottery Fairness: Understanding Randomness Through Mathematics and Statistics

A mathematical and statistical proof of amidakuji fairness. Explains from the perspectives of equal probability, independence, and unpredictability why amidakuji is the fairest lottery method.

Trouble PreventionComplaint PreventionEvent ManagementFailure Cases

10 Lottery Event Failure Cases and Countermeasures [Trouble Prevention Manual]

10 common lottery event failures and how to prevent them. A practical manual for avoiding troubles and preventing complaints in prize drawings and role assignments.

Promotional RegulationsLawComplianceCorporate Events

Legal Considerations for Prize Drawings: A Guide to Promotional Regulations

Key legal considerations when running prize drawings for corporate events and marketing campaigns. Covers promotional regulations, common violations, compliance checklists, and best practices for running lawful and fair lotteries.

lottery methodscomparisonroulettepaper lottery

Roulette vs Paper Lottery vs Ghost Leg: Comparing Lottery Methods by Fairness, Transparency, and Usability

Compare major lottery methods including roulette, paper lottery, ghost leg, and random selection tools based on fairness, transparency, and usability. Find the best method for your scenario.

SecurityPrivacyData ProtectionPersonal Information

Choosing a Secure Lottery Tool: A Complete Guide to Privacy and Data Protection

Key security and privacy checkpoints for selecting an online lottery tool. Learn how to run safe and secure drawings while protecting personal data.

NPOVolunteerOrganizational ManagementGovernance

Transparent Officer Selection and Duty Assignment for NPOs and Volunteer Organizations

A practical guide to conducting officer elections, duty assignments, and role distribution with transparency in NPOs and volunteer organizations. Strengthen governance and build trust.

OnlineOfflineHybridComparison

Offline vs Online Drawings: A Complete Comparison with Hybrid Strategies

A thorough comparison of in-person and online drawing methods, covering the pros and cons of each. Includes best practices for hybrid events.

SchoolEducationRole AssignmentGroup Division

Fair Decision-Making in Schools: A Complete Guide to Role Assignment, Group Division, and Turn Order

Learn how to fairly assign classroom roles, divide groups, and determine turn order in educational settings. Achieve better classroom management with transparent methods that students can accept.

Seasonal EventsEvent PlanningLottery IdeasGiveaways

Seasonal Event Lottery Ideas: Year-Round Drawing Plans for Every Occasion

Creative lottery and drawing ideas organized by season and occasion -- from spring welcome parties to winter holiday gatherings. A practical guide to making events more exciting with well-planned giveaways.

Team BuildingTrainingIcebreakerGames

10 Icebreaker Lottery Games for Team Building

10 icebreaker games using random selection for team building at training sessions, meetings, and social events. Practical methods to boost teamwork through fun lottery-based activities.

Use CasesEventsCompany PartyLottery

Make Your Company Party Unforgettable with a New Kind of Prize Drawing

Discover a transparent, participatory prize drawing method that livens up year-end and New Year parties. With Amida-san, everyone can enjoy a fair lottery that satisfies all participants.

Role AssignmentEvent OrganizerUse Cases

How to Fairly Assign Roles and Responsibilities [Using Digital Ghost Leg]

Practical guide to fairly assigning roles such as event organizers, project duties, and rotation tasks. Digital ghost leg lotteries provide a transparent, satisfying process for everyone.

FreeOnline Ghost LegHow to Use

Free Online Ghost Leg Lottery - No Registration, Mobile-Friendly

Create and share ghost leg lotteries online for free with Amida-san. No registration required, mobile-friendly, supports up to 299 participants. Perfect for event drawings, role assignments, team division, and more.

Online EventsLottery ToolsRemote Work

How to Run a Successful Online Event Lottery for Large Groups

A practical guide to online event lotteries in the remote work era. Run fair, transparent prize drawings for large audiences alongside Zoom and Teams. Make your events more engaging with digital Amidakuji.

AmidakujiBasicsLottery Method

What Is Amidakuji? The Mechanics and Uses of a Fair Lottery Method

Learn the basics of amidakuji (ghost leg lottery) -- from its structure and history to practical applications. Discover why this paper-and-pen lottery method has been cherished in Japan for centuries, and how it's used today.

AnnouncementFeatures

Welcome to Amida-san - Fair and Transparent Lottery Drawing

Amida-san is a web service for creating and sharing online amidakuji. Perfect for event lotteries, team division, role assignment, and more.