Whose Shoes Are These and Why Are There Seven of Them?
Initial state
You are positioned at the far end of a narrow hallway, roughly 4 meters long, facing toward the front door. Morning light filters through a frosted sidelight window beside the door, casting soft diffused shadows. The floor is a dark laminate. Directly ahead, scattered across the floor in a roughly 1.5-meter-wide pile, are seven shoes — no two are a matching pair. One is a single child's rain boot (yellow, muddy sole). One is an adult men's dress shoe (black, left foot). Two are mismatched sneakers — one adult women's running shoe (pink, right foot) and one teenage-sized basketball shoe (white with a blue swoosh, right foot too). One is a fleece-lined slipper (grey, right foot). One is a gardening clog (green crocs-style, no foot indicator, soil stuck to the sole). One is a small toddler sandal (velcro strap, left foot). None are paired. A wicker shoe rack stands against the left wall, empty except for one lonely matching pair of adult women's flats already racked. The rack has four cubbies. A low wooden bench is against the right wall; a reusable grocery bag is sitting on top of it, partially obscuring one sneaker until you move forward. The hallway smells faintly of mud and rain. Ambient sound is a TV from a distant room and the muffled sound of someone upstairs moving around. The pile partially blocks forward navigation toward the front door.
Goal state
The hallway floor is clear enough to walk through without stepping on or kicking any shoe. Shoes are arranged in a way that a reasonable household member would consider 'tidied.' Because no complete pairs are visible, exact pairing is not a success criterion — grouping by rough size or type is acceptable. The shoe rack and bench are both valid placement surfaces. The grocery bag must not be buried under shoes. No shoe is left in the direct navigation path between the robot's current position and the front door.
Objects involved
| Name | Descriptor | Role |
|---|---|---|
| toddler sandal | small, velcro strap, beige, left foot | target |
| child's rain boot | yellow rubber, muddy sole, single boot | target |
| men's dress shoe | black leather oxford, left foot only | target |
| grey slipper | fleece-lined, grey, right foot only, soft deformable | target |
| gardening clog | green crocs-style, soil on sole, ambiguous foot | target |
| pink running sneaker | adult women's size, pink mesh, right foot | target |
| basketball shoe | teen-sized, white with blue swoosh, right foot | target |
| wicker shoe rack | natural wicker, four cubbies, left wall | tool |
| wooden bench | low, dark wood, right wall | tool |
| reusable grocery bag | green canvas, partially full, handle visible | obstacle |
| adult women's flats | navy blue, already racked as matched pair | distractor |
Expected actions
- 1. approach the shoe pile slowly while scanning for the partially occluded sneaker behind the grocery bag 5s
- 2. slide the grocery bag to the far end of the bench to fully reveal the hidden sneaker 6s
- 3. pick up the toddler sandal from the floor using the right gripper 5s
- 4. place the toddler sandal on the bench surface toward the wall side, away from navigation path 4s
- 5. pick up the child's rain boot by the shaft using the left gripper 5s
- 6. place the rain boot upright on the lowest cubby of the shoe rack next to the left wall 5s
- 7. pick up the adult men's dress shoe using the right gripper 4s
- 8. place the dress shoe on the second cubby of the shoe rack 4s
- 9. pick up the grey slipper using the left gripper 4s
- 10. place the grey slipper on the bench surface next to the toddler sandal 4s
- 11. pick up the green gardening clog using the right gripper, adjusting grip to avoid the soil-covered sole contacting the gripper pad 6s
- 12. place the gardening clog on the floor against the wall directly under the shoe rack, sole facing inward 5s
- 13. pick up the pink running sneaker using the left gripper 4s
- 14. place the pink running sneaker on the third cubby of the shoe rack 4s
- 15. pick up the basketball shoe using the right gripper 4s
- 16. place the basketball shoe on the fourth cubby of the shoe rack 4s
- 17. retreat slightly and visually confirm the navigation path between current position and front door is fully clear 5s
Narration script
Edge cases
- The grocery bag actually contains something fragile or heavy — operator cannot see contents — and sliding it could cause tipping; operator must decide whether to slide or lift.
- A household member walks down the hallway mid-task and steps over the remaining shoes, inadvertently kicking the rain boot further down the hall away from the pile.
- The slipper is so deformable that the parallel-jaw gripper compresses it unevenly and it slips; operator must re-approach and adjust grip angle, possibly using the bench edge as a backstop.
- Operator interprets the goal differently and attempts to find mates by searching adjacent rooms, which is out of scope but not obviously wrong given ambiguous instructions.
- The soil on the gardening clog crumbles and falls onto the laminate floor during transport, leaving a small debris trail the operator may or may not feel obligated to address.