WEEKLY CHALLENGE · Running

Optimal quantization in an L-shaped region

This week is running; the numbers below move as records do.

2026-09-20 — 2026-09-27In play: 20 sub-problemsGo to the problem →

Champion of the week

今天#8420 records

#NameRecords held

01今天#8420

Sub-problemAt the startAt the close

n = 10unheld今天changed hands

n = 11unheld今天changed hands

n = 12unheld今天changed hands

n = 13unheld今天changed hands

n = 14unheld今天changed hands

n = 15unheld今天changed hands

n = 16unheld今天changed hands

n = 17unheld今天changed hands

n = 18unheld今天changed hands

n = 19unheld今天changed hands

n = 20unheld今天changed hands

n = 21unheld今天changed hands

n = 22unheld今天changed hands

n = 23unheld今天changed hands

n = 24unheld今天changed hands

n = 5unheld今天changed hands

n = 6unheld今天changed hands

n = 7unheld今天changed hands

n = 8unheld今天changed hands

n = 9unheld今天changed hands