Line Weight: One‑Dimensional Stack Puzzle

Core Gameplay
The scale is represented as a horizontal line. Blocks are placed at specific coordinate points on that line. The goal is to keep the centre of mass within a target region (a highlighted segment of the line) while stacking blocks to reach a target total weight, not height. This is an abstract, mathematical version of the stacking genre.

Level & Content Design
300 levels (the largest in this collection). Each level gives a target total weight and a centre‑of‑mass region. Players can place any number of blocks from a limited inventory. Later levels require the centre of mass to move over time (e.g., start in left region, end in right region after adding blocks). No updates needed.

Visuals & Experience
Pure black‑and‑white line graphics – no textures, no 3D. The line is thick, blocks are circles with weight numbers inside. The centre‑of‑mass region is a shaded zone. A quiet ticking sound accompanies each placement.

Key Features

Equation Display: Shows the exact centre‑of‑mass calculation as a formula.

Infinite Undo: No limit on undoing placements.

Export/Import Levels: Share custom level designs with other owners of the game via text codes.

User Value
Teaches weighted averages and centre‑of‑mass calculations intuitively. Ideal for mathematics students or puzzle purists.

Usage Scenarios
Perfect for self‑study, tutoring sessions, or as a logical evening activity.