A hall story
The plan in the diagram shows a two-storey building in a hall of residence divided into rooms for twelve students. Clues: |
| 1 | Helen's room on the first floor is immediately above Martin's on the ground-floor. |
| 2 | Mike's room is on the same floor as those of Morag and Shaun; none of these three has room 4 and Yolanda's room is not on the same floor as theirs. |
| 3 | Naomi has room 9; the room below hers belongs to another female student. |
| 4 | The boy in room 7 is directly across the corridor from a student with a four-letter name. |
| 5 | Alison has room 2; one of her next-door neighbours is Patrick. |
| 6 | Olga and Dennis have rooms on the same side of the corridor as each other and on the same floor, but their rooms are not adjacent to each other. |
| 7 | The occupant of room 6 has a longer name than the person in room 10. |
| 8 | Morag's room is not on the same side of the building - left or right - as Olga's. |
| students: | |
| Girls: Alison; Helen; Morag; Naomi; Olga; Yolanda | |
| Boys: Dennis; Jeremy; Martin; Mike; Patrick; Shaun | |