| Solids with four plane triangular surfaces |
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| Four-sided pyramids made solely from bits of thread (10) |
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| Heartbroken to block dubious trade in pyramids |
The Guardian Cryptic |
13 Dec 2022 |
| Four-sided dice, e.g. (Note the last 3 letters of this answer + the start of 34-Down) |
Universal |
29 Jun 2022 |
| Ruins rather date pyramids |
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| Triangular pyramids |
The Times Specialist Sunday |
07 Mar 2021 |
| Strange three-D art beginning with abstract geometric figures |
The Telegraph Cryptic |
19 Nov 2020 |
| 'D4' dice in role-playing games, e.g |
New York Times |
18 Jan 2019 |
| "D4" dice in role-playing games, e.g. |
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| Some pyramids, though not the ones at Giza |
New York Times |
17 Jun 2017 |
| Three-D art, perhaps, last seen in Giza – The Pyramids |
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| Some pyramids, though not the ones at Giza |
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| Four-sided dice, for example |
Wall Street Journal |
03 Dec 2016 |
| Pyramids built of earth rated fantastic |
The Times Cryptic |
01 Jan 2016 |
| Shapes used to model water molecules |
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| Pyramids, and the like |
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