Small rules.Good problems.

Five different ways to untangle something: draw a thread, read a skyline, pitch a camp, wire islands, or weave a loop.

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Five small locks. Pick any door.

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Threadline

Spend an exact thread budget through knots, patches, beads, needles, and entry pins.

Build a skyline where every row, column, and view from the edge agrees.

Pitch tents beside trees, satisfy every row count, and keep the campsites from touching.

Connect numbered islands with single or double bridges, without crossing the open water.

Draw one continuous loop while each number counts how many of its cell sides are used.