| Work discussing ten square chains becomes more baffling |
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| Drop a query, admitting: "This is less clear" (7) |
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| Queen involved in enigmatic opera that's more impenetrable |
The Guardian Cryptic |
20 Feb 2023 |
| More difficult to understand |
The Times Specialist Sunday |
29 Aug 2021 |
| More obscure work with a pair of rulers |
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| More impervious to light |
The Telegraph General Knowledge |
11 Oct 2020 |
| . Work enquiry's incomplete on area that's less clear |
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| Question interrupting the opera composition makes it less transparent |
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| Less transparent |
The Times Concise |
10 Feb 2019 |
| Less transparent |
Universal |
05 Jan 2019 |
| Less transparent |
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| Less clear over Dad's poser? No end to it! |
The Telegraph Toughie |
16 May 2018 |
| Majority of L-dopa queries becoming more puzzling |
The Telegraph Toughie |
12 Oct 2017 |
| Drop a query somewhat less easy to understand |
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| Less transparent |
USA Today |
26 Apr 2015 |
| Less transparent |
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| More nontransparent |
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