1. Select two points
Click or tap one point, then another. The two positions swap on the board.
2. Read the lines
Red segments still collide with another line. Blue segments are already clear.
3. Look for high-impact swaps
Start with points connected to several red lines. One good move can clear multiple intersections.
FAQ
pzzle runs in the browser for free. The daily challenge is harder than solo progression and is designed for repeat play.