MathDB
Chess tournament

Source: MMC 2013

June 14, 2013
inductioncombinatorics proposedcombinatorics

Problem Statement

Determine the least integer kk for which the following story could hold true: In a chess tournament with 2424 players, every pair of players plays at least 22 and at most kk games against each other. At the end of the tournament, it turns out that every player has played a different number of games.