(Very) Hard AND nice puzzles
The following list contains portal puzzles that have been rated as nice or very nice and that are difficult. These puzzles are recommended for experts - and allow some time to solve.
| Description | solved | Rating | |
|---|---|---|---|
 | The Order by zetamath (on 18. May 2024, 18:45) | 66 |  95 % |
| Four-Box Fillominoku by Bert (on 21. May 2024, 17:09) | 20 | 90 % |
| Energized Pylon by heliopolix (on 1. June 2024, 00:00) | 14 | 93 % |
| More Piles of 15 by Cane_Puzzles (on 31. May 2024, 19:15) | 50 | 95 % |
| LM-Übungsrätsel: Matchmaker by CJK (on 9. June 2024, 17:21) | 25 | 97 % |
| Overstuffed by Oddlyeven (on 19. June 2024, 00:43) | 30 | 96 % |
| Whispern't Loop by yttrio (on 6. July 2024, 02:04) | 71 | 96 % |
| Why did you open that? by sanabas (on 7. July 2024, 14:43) | 12 | 90 % |
| Square Dance by Jay Dyer (on 9. July 2024, 22:47) | 87 | 96 % |
| Insight Out (Chaos Construction) by sfushidahardy (on 24. July 2024, 21:57) | 73 | 95 % |
| Domino Reduction by Calesch (on 30. July 2024, 19:09) | 20 | 94 % |
| blizzach tempel by aqjhs (on 14. August 2024, 22:58) | 16 | 93 % |
| It Makes No Difference by juggler (on 19. August 2024, 11:37) | 46 | 94 % |
| on elliptic hyperboles by aqjhs (on 11. November 2024, 11:11) | 46 | 91 % |
| SUPER - Buchstabenrätsel / Letter Puzzle by DocLogic (on 24. September 2024, 17:45) | 28 | 95 % |
| call me a livid pro-funk reject by aqjhs (on 28. February 2025, 06:30) | 16 | 98 % |
| Diagonal Regions by Prof.Dori (on 6. October 2024, 14:24) | 24 | 95 % |
| Madness [Masyu with Cages] by wisty (on 15. October 2024, 23:54) | 35 | 96 % |
| Splitting the Estate (Sudoku with sweeper cells) by Qodec (on 20. December 2024, 20:28) | 20 | 90 % |
| Quantum Entanglement by Scojo (on 6. January 2025, 06:26) | 63 | 97 % |
