Simple Path
Also called Hamiltonian Path
Draw one path from the arrow in to the arrow out that visits every white cell.
Rules
Draw one path from the arrow in to the arrow out, through every white cell.
✓ Every cell ✗ Cells missed The path never branches or crosses itself.
✗ Branches It goes around dark cells and never crosses a thick wall.
✓ Around the rock ✗ Through a wall
Example: First Steps
Playing here: Drag from cell to cell to draw; drag back over a line to erase it.