The piece of corundum is awarded for solving a conundrum of difficulty 9/10. Total in circulation: 458,210.
This table shows the players who have collected the most pieces of corundum.
| # | Player | ![]() |
|---|---|---|
| 655th | Sam Schmedlapp | 4 |
| 655th | Jules A Joss | 4 |
| 655th | Kate Ford | 4 |
| 655th | Liam McCabe | 4 |
| 655th | Martin A Smith | 4 |
| 655th | Martin Curristan | 4 |
| 655th | Matt Jones | 4 |
| 655th | Mike Povey | 4 |
| 655th | Nic Hodgkinson | 4 |
| 655th | Piaras M Carney | 4 |
| 655th | Ryan Mckenzie | 4 |
| 655th | John Osmond | 4 |
| 655th | Sanjiv Rana | 4 |
| 655th | Scott Kenyon | 4 |
| 655th | Sean Mowat | 4 |
| 655th | Steve Redfern | 4 |
| 655th | Stuart Moore | 4 |
| 655th | Thomas Pycroft | 4 |
| 655th | Tom S | 4 |
| 655th | Tony Williams | 4 |
| 655th | Valerie Dean | 4 |
| 655th | Ziggy Malone | 4 |
| 655th | Gav Cooper | 4 |
| 655th | Alex W | 4 |
| 655th | Andy Bruno | 4 |
| 655th | Archie T R | 4 |
| 655th | Bailey Cowell | 4 |
| 655th | Brian Haas | 4 |
| 655th | Cyril Topher | 4 |
| 655th | Daniel Bobb | 4 |
| 655th | Daniel Milward | 4 |
| 655th | Doris Fray | 4 |
| 655th | Gary With One R Woodward | 4 |
| 655th | Alex Lacey | 4 |
| 655th | Giles Kingsnorth | 4 |
| 655th | Ian Milller | 4 |
| 655th | Ian Wynn | 4 |
| 655th | Jeff Burgin | 4 |
| 655th | Jeff Probst | 4 |
| 655th | Jenny Mack | 4 |
| 655th | Jeremy Kong | 4 |
| 655th | Joe Parry | 4 |
| 655th | Joe Wilkinson | 4 |
| « Top 25 | ‹ Previous 25 | 651–675 of 855 | Next 25 › | ||
Statistics last updated about 25 minutes ago at 2026-08-25 00:44:00.
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