WEEKLY CHALLENGE · Running

Consecutive L shapes in a square

This week is live; the numbers below update as records change hands.

2026-11-01 — 2026-11-08In play: 50 sub-problemsGo to the problem →

Champion of the week

condor#33839 records

Live standings

#NameRecords held

01condor#33839

02qiboqi#2806

03今天#843

Sub-problem by sub-problem

Sub-problemAt the startAt the close

n = 1unheldunheld

n = 10unheldcondorchanged hands

n = 11unheldcondorchanged hands

n = 12unheldcondorchanged hands

n = 13unheldcondorchanged hands

n = 14unheldcondorchanged hands

n = 15unheldcondorchanged hands

n = 16unheldcondorchanged hands

n = 17unheldcondorchanged hands

n = 18unheldcondorchanged hands

n = 19unheldcondorchanged hands

n = 2unheldunheld

n = 20unheldcondorchanged hands

n = 21unheldcondorchanged hands

n = 22unheldcondorchanged hands

n = 23unheldcondorchanged hands

n = 24unheldcondorchanged hands

n = 25unheldcondorchanged hands

n = 26unheldcondorchanged hands

n = 27unheldcondorchanged hands

n = 28unheldqiboqichanged hands

n = 29unheldcondorchanged hands

n = 3unheld今天changed hands

n = 30unheldcondorchanged hands

n = 31unheldcondorchanged hands

n = 32unheldcondorchanged hands

n = 33unheldcondorchanged hands

n = 34unheldqiboqichanged hands

n = 35unheldcondorchanged hands

n = 36unheldcondorchanged hands

n = 37unheldcondorchanged hands

n = 38unheldcondorchanged hands

n = 39unheldcondorchanged hands

n = 4unheld今天changed hands

n = 40unheldcondorchanged hands

n = 41unheldcondorchanged hands

n = 42unheldcondorchanged hands

n = 43unheldcondorchanged hands

n = 44unheldcondorchanged hands

n = 45unheldcondorchanged hands

n = 46unheldcondorchanged hands

n = 47unheldcondorchanged hands

n = 48unheldcondorchanged hands

n = 49unheldcondorchanged hands

n = 5unheld今天changed hands

n = 50unheldcondorchanged hands

n = 6unheldqiboqichanged hands

n = 7unheldqiboqichanged hands

n = 8unheldqiboqichanged hands

n = 9unheldqiboqichanged hands