| Clue | Source | Date |
|---|---|---|
| Simple to a fault | ||
| Not challenging enough | Premier Sunday | 30 Apr 2023 |
| “Piece of cake!” | Wall Street Journal | 26 May 2022 |
| Like child's play | New York Times | 18 Apr 2021 |
| No challenge at all | Universal | 15 Feb 2019 |
| Like child's play | ||
| No challenge at all | ||
| Not at all challenging | Wall Street Journal | 24 Sep 2018 |
| Not at all challenging | ||
| Not the least bit challenging | The Washington Post | 01 Nov 2017 |
| 'That's no challenge' | New York Times | 30 Jun 2017 |
| Not the least bit challenging | ||
| "That's no challenge" | ||
| Like child's play | Jonesin | 25 Oct 2016 |
| No challenge at all | ||
| "No challenge at all" | ||
| "No challenge" | ||
| Not a challenge at all | ||
| Like child's play | ||
| Like child's play | ||
| Like a Monday puzzle, to a Friday solver |