(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 | |
|---|---|---|---|
 | Noch ein Instructionless by ibag (on 17. February 2022, 23:58) | 19 |  99 % |
| Nineteen? (X-sums Chaos Construction 2) by Lizzy01 (on 13. April 2022, 21:17) | 52 | 99 % |
| Vector Field [Arrow, Killer] by Miky (on 28. April 2022, 19:43) | 22 | 96 % |
| Gyroscope 3.0 by Ambrose (on 7. August 2022, 17:46) | 49 | 97 % |
| All Around by Joseph nehme (on 22. October 2022, 09:22) | 24 | 90 % |
| Parity Party XXVIII, "Party Mirror" by glum_hippo (on 30. March 2023, 13:57) | 34 | 94 % |
| Parity Poopers by aleph-0 (on 29. February 2024, 12:59) | 21 | 99 % |
| Heat Intensity by Calesch (on 13. August 2024, 05:09) | 23 | 94 % |
| Squiggles by Ratfinkz (on 30. November 2024, 20:38) | 56 | 97 % |
| Wraparound by mathpesto (on 29. June 2025, 23:31) | 23 | 94 % |
| Bicentenary by NicoD (on 5. September 2025, 05:30) | 26 | 92 % |
| Cavernous Japanese Sum: Deconstruction (9x9) by Playmaker6174 (on 21. November 2025, 15:00) | 19 | 100 % |
| *100* Doppelter Pentomino-Rundweg by Richard (on 17. June 2009, 21:00) | 100 | 95 % |
| Colour Quest by Fenners (on 12. January 2025, 21:02) | 135 | 95 % |
| Hurray for René by Richard (on 9. January 2021, 00:00) | 54 | 96 % |
| High Way by Mujika (on 6. January 2024, 17:47) | 62 | 93 % |
| Numbered Rooms of Entropy by Mad-Tyas (on 6. January 2025, 05:15) | 51 | 92 % |
| Taste the Tension by GameWorksRP (on 27. October 2025, 11:54) | 56 | 94 % |
| Pseudo Cluedo by marty_sears (on 6. April 2024, 01:13) | 100 | 98 % |
| (+10)-Yang by Kaktuslav (on 30. September 2025, 08:00) | 171 | 96 % |
