why are ladders games only populated by 12k and under type players ?

[square.defender]

average place in 19x19 Ladder for each rank in 2024

@square.defender

@square.defender

horizontal axis - place in Ladder
vertical axis - % inside current group of 300 users
dan: 1d - 9d
SDK: 9k - 1k
DDK: 19k - 10k
TPK: 25k - 20k
[?]: Ladder games are ranked, so of course its not possible to reach top 300 without getting rank