All challenges

Cut a cake with straight lines to create pieces matching requested strawberry counts.

Place points inside a unit sphere while maximizing the closest-pair distance.

Place communication hubs and assign sensors to minimize radius and load costs.

Pack rotatable unit squares in the smallest possible square container.

Select polygon vertex segments to minimize expected distance to the nearest installed rope.

Add grid points by drawing valid axis-aligned or diagonal rectangles.

Draw an axis-aligned polygon that catches more mackerels than sardines.

Report hidden deposit coordinates from Manhattan-distance probe metadata.

Move a two-leg Manhattan compass among pinholes to collect value under equal-distance moves.

Recover hidden integer lines from Frontier-CS source instances.

Pick one landing point per city and order a closed drone delivery route.

Recover a hidden circular disk by probing line-segment intersection lengths.