| Clue | Source | Date |
|---|---|---|
| Monochrome | The Times Concise | 26 Jul 2023 |
| Colourless opponents across the board | The Times Cryptic | 19 May 2023 |
| Clearly defined like the squares here | ||
| Chess players not allowing any middle ground | ||
| Chess opponents in a sort of photo | ||
| Divided into mutually distinct categories like a chess board |