Search tips: Space will search X or Y, "+" will search X and Y, "-" will exclude that term from search.
35.85% of auctions linked
Search tips
Using a space will search X or Y.
"+" will search X and Y.
"-" will exclude that term from search.
35.85%
linked
"+" will search X and Y.
"-" will exclude that term from search.
Updated Jan 11, 2026
Values for auctions have been converted to USD using conversion rates from the actual date of the auction.
| Puzzle
Click the to link
an auction to a puzzle. |
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Click the to link
an auction to a puzzle. |
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| Collatz by Dr. Volker Latussek | 2025-Dec-02 | $16.01 | 5 |
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Collatz |
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Collatz by Dr. Volker Latussek
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Dec 02 2025 |
$16.01
5 bids
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| Collatz | 2025-Mar-24 | $2.01 | 3 |
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Collatz
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Mar 24 2025 |
$2.01
3 bids
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| Collatz [Latussek] | 2025-Feb-20 | $13.00 | 5 |
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Collatz [Latussek]
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Feb 20 2025 |
$13.00
5 bids
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