Count overlapping memberships without counting people twice
Separate membership totals from distinct identities and check the correction for an identity in three groups.
Kiguri Blog
Check a summary against one large value before calling it typical
Compare a mean and median on a complete synthetic list, then inspect a clearly labeled one-value what-if.
Check an aggregate comparison against its group composition
Compare pooled and group-specific fractions separately before describing one collection as better than another.
Replay a task-claim protocol with delayed replies
Keep offer versions, acceptance, commitment, and receipt separate when examining a fictional assignment conversation.
Revalidate review comments after the draft changes
Compare each original concern with the current draft so a moved or deleted comment anchor is not mistaken for resolution.
Check how a weighted option ranking depends on its weights
Keep score meaning and preference weights explicit, then identify where a fictional ranking changes or ties.
Detect a cycle before treating group preferences as a ranking
Compare each pair of options and retain a cyclic majority relation instead of inventing one agreed group order.
Check whether reviewer assignments fit eligibility and capacity
Map who can review each item, then check whether those individual choices can form one complete allocation.
Check quorum and ballot denominators before a group choice
Keep attendance, valid votes, abstentions, and the approval threshold separate when checking an invented group ballot.
Build a timeline without inventing event order
Use earliest and latest possible event instants to separate definite precedence from an order the records cannot establish.
Check that a reordered list still preserves record associations
Compare each identified record before and after reordering instead of trusting valid fields or an unchanged total.
Check a planning sketch before treating its shapes as comparable
Compare horizontal and vertical scales in an invented sketch before drawing conclusions from its proportions.