(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 | |
|---|---|---|---|
 | Even Lighting by Jay Dyer (on 15. February 2023, 23:02) | 66 |  97 % |
| Build Your Own Killer: Criminal Mind by Playmaker6174 (on 3. March 2022, 18:07) | 42 | 100 % |
| Lawful Wrogn by Niverio (on 20. March 2023, 16:33) | 85 | 95 % |
| Full Circle by Qodec (on 22. September 2025, 16:15) | 62 | 97 % |
| Suguru Chaos Deconstruction: Sectioned Thermos by crispy16 (on 23. April 2022, 16:44) | 75 | 98 % |
| BYO Kropki Cages by mathpesto (on 10. December 2022, 02:33) | 76 | 99 % |
| Wichtelkalender 2013 - Oktober by pin7guin (on 1. October 2013, 00:00) | 27 | 91 % |
| LM 2016 - Spätfolgen: Sternenhimmel-Japanische Summen by ibag (on 15. August 2016, 20:13) | 42 | 99 % |
| Broken Secrets by TotallyNormalCat (on 2. June 2021, 07:00) | 66 | 98 % |
| Unbekannte Bahnhöfe by Dandelo (on 13. August 2021, 18:23) | 15 | 100 % |
| Wichtel 2020 (13 und Schluss): Bescherung in Überlappenhausen by wichtel (on 27. October 2021, 20:20) | 14 | 100 % |
| Japanese Nurikabe (1) by KNT (on 4. September 2022, 05:44) | 62 | 97 % |
| Maelstrom by MavericksJD (on 2. June 2023, 02:07) | 33 | 92 % |
| No Mountains Allowed by Laake (on 19. November 2023, 23:52) | 17 | 94 % |
| Arrows to the gates of hell by damasosos92 (on 6. February 2024, 23:17) | 13 | 96 % |
| DoubleX-somedoku by sanabas (on 22. July 2024, 09:14) | 15 | 90 % |
| City Within City by Lyun Licuss (on 26. September 2025, 13:04) | 18 | 90 % |
| Balanced Chaos by fritzdis (on 29. November 2022, 16:24) | 123 | 97 % |
| Japanese Cave by KNT (on 29. August 2022, 05:29) | 49 | 99 % |
| Caged Knights Versus The Archers by Jeet Sampat (on 16. May 2023, 18:33) | 42 | 97 % |
