| Clue | Source | Date |
|---|---|---|
| Computer in 1979 novel The Hitchhiker's Guide to the Galaxy by Douglas Adams | Mirror Quiz | 12 Jan 2024 |
| First chess computer to beat a grandmaster | USA Today | 09 Aug 2019 |
| First chess computer to beat a grandmaster | ||
| Chess-playing computer | Universal | 25 Apr 2017 |
| Chess-playing computer | ||
| Chess-playing computer | The Washington Post | 03 May 2016 |
| Pensive state | ||
| Pensive state |