| Bidder | Amount | Date | 
|---|---|---|
| M****l 344 | €10.00 | 22.09.2019 01:11:48 | 
From the set of IPP37 exchange puzzles this is "PENT UP", Exchanged by Louis Toorenburg.
6 multi-challenges with 3 differently colored dots solutions each. The image shows a solution with white dots
 The tray measures 15x14 cm.