
Trail
One line through every cell
One line, every cell, from 1 to the last number.
Numbers in order, none skipped.
Walls block the way. Go around.
Controls
- Drag from the end of the line to draw.
- Drag back to erase. Tap the line to cut it there.
- Keys: arrows, Backspace, Ctrl/⌘+Z.
Start with corners and walled-in cells.
