The piece of calcite is awarded for solving a conundrum of difficulty 3/10. Total in circulation: 847,825.
This table shows the players who have collected the most pieces of calcite.
| # | Player | ![]() |
|---|---|---|
| 453rd | Stephen E | 170 |
| 454th | Christy Cooper | 169 |
| 454th | James Gibson | 169 |
| 454th | James Reeve | 169 |
| 454th | Sam Hubbard | 169 |
| 458th | Amy Berry | 167 |
| 458th | Mark Baker | 167 |
| 460th | Jase Cullen | 165 |
| 460th | Matt Hynes | 165 |
| 462nd | Philip Chapman | 163 |
| 463rd | William Whiteside | 162 |
| 463rd | Dan Abrey | 162 |
| 465th | Nigel Mercer | 161 |
| 466th | Rob Don | 160 |
| 467th | Rob Pattison | 158 |
| 468th | Edward McCullagh | 157 |
| 468th | Matt Morrison | 157 |
| 470th | Lee Nixon | 155 |
| 471st | Gerard O'Shea | 154 |
| 472nd | Kai Laddiman | 152 |
| 473rd | Anthony M | 151 |
| 473rd | Usman Mirza | 151 |
| 475th | Mark J Harris | 150 |
| « Top 25 | ‹ Previous 25 | 451–475 of 1,770 | Next 25 › | ||
Statistics last updated about 10 minutes ago at 2026-09-13 13:57:53.
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