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| Bidder | Amount | Date |
|---|---|---|
| Gocrager 310 | $640.00 | 15.03.2026 00:16:00 |
| icing 10 | $630.00 | 15.03.2026 00:16:00 |
| Gocrager 310 | $610.00 | 15.03.2026 00:12:21 |
| icing 10 | $600.00 | 15.03.2026 00:12:21 |
| Gocrager 310 | $560.00 | 14.03.2026 17:32:10 |
| icing 10 | $550.00 | 14.03.2026 17:32:10 |
| icing 10 | $535.00 | 14.03.2026 15:58:45 |
| Gocrager 310 | $525.00 | 14.03.2026 15:58:45 |
| Gocrager 310 | $510.00 | 14.03.2026 15:58:32 |
| icing 10 | $500.00 | 14.03.2026 15:58:32 |
| Gocrager 310 | $430.69 | 14.03.2026 15:55:38 |
| icing 10 | $420.69 | 14.03.2026 15:55:38 |
| Gocrager 310 | $410.00 | 13.03.2026 16:46:12 |
| MJay 63 | $400.00 | 13.03.2026 16:46:12 |
| Gocrager 310 | $380.00 | 13.03.2026 16:45:51 |
| MJay 63 | $370.00 | 13.03.2026 16:45:51 |
| Gocrager 310 | $360.00 | 13.03.2026 16:45:38 |
| MJay 63 | $350.00 | 13.03.2026 16:45:38 |
| Gocrager 310 | $330.00 | 13.03.2026 16:45:24 |
| MJay 63 | $320.00 | 13.03.2026 16:45:23 |
| Gocrager 310 | $310.00 | 13.03.2026 16:40:04 |
| MJay 63 | $300.00 | 12.03.2026 17:21:31 |
| MJay 63 | $250.00 | 12.03.2026 17:11:19 |
| MJay 63 | $220.00 | 12.03.2026 15:55:20 |
| syko159 148 | $200.00 | 11.03.2026 01:59:28 |
| MJay 63 | $185.00 | 10.03.2026 10:52:16 |
| syko159 148 | $175.00 | 09.03.2026 15:37:21 |
| gemini 25 | $165.00 | 08.03.2026 18:59:46 |
| syko159 148 | $155.00 | 08.03.2026 00:34:51 |
| gemini 25 | $145.00 | 07.03.2026 21:51:42 |
| gemini 25 | $135.00 | 07.03.2026 21:50:19 |
| icing 10 | $125.00 | 07.03.2026 18:53:54 |
Six Key Mine is number 9 in Robert Rose's Mental Block Puzzles series. This specimen is an original Rose, exceptionally rare to find. One of the six keys is labelled "MBP 9 6 Key Mine".
This Puzzle won 1st prize in the 2003 IPP Puzzle Design Competition.
It is one of the more unusual looking all-metal puzzles in the sense that it is neither squarish, rectangular, cylindrical nor just a sphere per se (like the Isis). Rather the puzzle consists of a polished aluminium hollowed-out sphere or ball with six aluminium pegs inserted into its sides.
The puzzle is slightly less than 3 inches wide from peg to peg and feels hefty in the palm. The object of the puzzle is to place all 6 pegs into the 6 holes in the sphere. This is not easy as all the 6 pegs are not identical to each other, especially where the bottom half (where there is a flat protruding portion) is concerned. The whole purpose of making each peg different is so that if you inserted a peg into a hole which it does not belong, it would block another peg later from entering. To make things even harder, the holes themselves all have different orientations relative to the sphere.
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