Filling Lines Guide

How the game works

Level 1 opened on a 4×4 board with three visible symbol pairs: hearts, orange squares, and purple shapes. Each pair occupies different rows and columns, so connecting one pair carelessly can cut off another. The small opening board makes route order—not reaction speed—the useful subject for the guide.

Controls

Press Play, then connect each pair of identical symbols by dragging a line across empty cells. Finish every pair without blocking the remaining routes.

Practical tips

• Connect the pair with the most constrained route before using the open center cells.
• Check whether a line divides the remaining empty cells into disconnected regions.
• Use the 4×4 border deliberately; an outside route can preserve room for the middle pair.

Before you start

Checked in Google Chrome 150 at 600 × 900. The self-hosted build entered Level 1 and rendered the full 4×4 starting board with pause and restart controls.