The couch and the fridge are a fixed point problem. Pick the shortest line and then check for obstacles that could block a straight line: the coffee table, a sofa, a lamp. If the coffee table is in the way, the best shortcut is a 90‑degree turn around the table’s corner, then a straight segment to the fridge. If the lamp is in the middle, move it or go under it like a cat. In short, identify the single largest obstacle and find the narrowest corridor around it. That’s the stealth route.

Start with the couch at point A and the fridge at point B. Draw a straight line between them. Mark the coffee table as a rectangle that intersects the line. The corner of the table opposite the couch is the only place you can slip through. That’s your corridor: a 45‑degree diagonal from the table corner to the fridge. Now, check the lamp. If it’s a floor lamp on the left side of the table, it will only interfere if you try to go straight under it. Move it or angle the table 10 degrees so the diagonal clears the lamp. No fancy decorations, just a clean line. If you hit a snag, lay a foam cube on the floor where the line crosses. Measure the distance from the couch to the cube and from the cube to the fridge. If that distance is shorter than the original straight line, you’ve found a better route. Keep adjusting until the total travel time is minimized. That’s the shortcut.