(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 | |
|---|---|---|---|
 | RAT RUN 23: Notable Differences by marty_sears (on 28. January 2026, 02:00) | 396 |  98 % |
| 10-in-9 killer sudoku #2 by Nylimb (on 30. January 2020, 12:36) | 42 | 96 % |
| Roller Coaster mit Extras 20 by Uhu (on 13. April 2021, 09:31) | 39 | 99 % |
| Battle With The Archers 12: Silent Threat by Playmaker6174 (on 21. August 2021, 17:17) | 44 | 95 % |
| Battle With The Archers 35: The Conflict of Three Worlds by Playmaker6174 (on 8. September 2022, 03:57) | 48 | 96 % |
| Silk Road (Aquarium Country Road Fillomino) by Agent (on 7. February 2023, 09:00) | 43 | 100 % |
| Habitat 67 by sfushidahardy (on 15. October 2024, 18:35) | 73 | 97 % |
| Wichtelkalender 2013 - August by SilBer (on 1. August 2013, 00:00) | 53 | 99 % |
| Wichtel 2019 (4): Unvollendet ausgegraben by wichtel (on 17. August 2020, 20:10) | 25 | 99 % |
| Battle With The Archers 34 - The Climax: The Vow of Three Worlds by Playmaker6174 (on 15. July 2022, 08:06) | 83 | 97 % |
| Chaos in all Regions by Bother__ (on 4. December 2022, 21:29) | 31 | 92 % |
| Arrow Courtyard by PotatoHead21 (on 16. February 2023, 10:33) | 32 | 95 % |
| Thermo Unicorn by NurglesGift (on 6. January 2024, 12:35) | 32 | 92 % |
| Cobra's Curse by IcyFruit (on 1. February 2024, 14:37) | 87 | 97 % |
| Ominous Yajilin by Jay Dyer (on 23. June 2024, 21:12) | 54 | 96 % |
| Eureka! by juggler (on 3. October 2024, 15:39) | 92 | 97 % |
| Arrow Knight by ademjaz (on 31. December 2022, 11:54) | 77 | 96 % |
| Quagmire by jwsinclair (on 7. February 2023, 20:48) | 76 | 96 % |
| Middle of the Road (Killer) by tallcat (on 13. February 2023, 08:00) | 83 | 97 % |
| Three is a Crowd Sudoku by rk1970 (on 22. April 2020, 09:26) | 42 | 95 % |
