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| Bidder | Amount | Date |
|---|---|---|
| m****l 974 | USD 18.00 | 12/01/2019 04:28:35 |
| f****s 78 | USD 17.00 | 12/01/2019 04:28:26 |
| m****l 974 | USD 17.00 | 12/01/2019 04:28:26 |
| f****s 78 | USD 16.00 | 12/01/2019 04:28:17 |
| m****l 974 | USD 15.00 | 12/01/2019 04:28:17 |
| f****s 78 | USD 14.00 | 12/01/2019 04:12:37 |
| m****l 974 | USD 13.00 | 11/27/2019 09:32:12 |
| f****s 78 | USD 12.00 | 11/27/2019 09:32:12 |
| f****s 78 | USD 11.00 | 11/27/2019 09:32:01 |
| m****l 974 | USD 10.00 | 11/27/2019 09:32:01 |
| f****s 78 | USD 6.00 | 11/27/2019 09:31:46 |
| m****l 974 | USD 5.00 | 11/27/2019 09:31:46 |
| f****s 78 | USD 4.50 | 11/27/2019 09:31:36 |
| m****l 974 | USD 4.00 | 11/27/2019 09:31:36 |
| f****s 78 | USD 3.50 | 11/27/2019 09:31:24 |
| m****l 974 | USD 3.00 | 11/27/2019 09:31:24 |
| f****s 78 | USD 2.50 | 11/26/2019 23:15:30 |
| W****y 18 | USD 2.00 | 11/26/2019 23:15:30 |
| W****y 18 | USD 1.25 | 11/24/2019 21:22:32 |
| Y****y 63 | USD 1.00 | 11/24/2019 20:33:15 |
| W****y 18 | USD 1.00 | 11/24/2019 20:33:15 |
| Y****y 63 | USD 0.10 | 11/24/2019 14:22:32 |
This is from cubic dissections artisan series.
Words by Eric fuller:
Stewart Coffin designed the Half Hour puzzle in 1975. So named because he thought it would take most people about that long to solve it. He said:
"The six-piece version of the 3x3x3 cube will be considered first. For aesthetic reasons, one might prefer that all the pieces be the same size, but this is impossible, so the nearest approximation is to use three four-block pieces and three five-block pieces. It is also desirable that all pieces be non-symmetrical but this is likewise impossible so two of the four-block pieces will have an axis of symmetry. All pieces will, of course, be dissimilar. Of the several thousand, such combinations possible the author tried several that proved to have either multiple solutions or no solution, until finally finding one with a unique solution.