# RE9 | anthropic/claude-opus-5 | run 2

## Prompt

Schedule three 30-minute meetings between 9:00 and 12:00 in 30-min slots: Z must be at 11:00; X must occur before Y. Give a valid schedule.

## Response

**Valid schedule:**

| Meeting | Time |
|---|---|
| X | 9:00 – 9:30 |
| Y | 9:30 – 10:00 |
| Z | 11:00 – 11:30 |

**Why it works**

Z sits in its required 11:00 slot, X (9:00) precedes Y (9:30), and no two meetings overlap since each occupies a distinct 30-minute block within the 9:00–12:00 window.

**Other valid options**

Any assignment where X comes before Y among the five free slots (9:00, 9:30, 10:00, 10:30, 11:30) also works — for example X at 9:30 / Y at 10:30, or X at 10:00 / Y at 11:30. That gives 10 possible arrangements in total.

Would you like the schedule adjusted to add buffer time between meetings or to cluster them back-to-back?
