(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 | |
|---|---|---|---|
 | Somewhere Over The Rainbow by ICHTUES (on 30. May 2021, 06:00) | 46 |  96 % |
| Yes, The Clever Equation by SSG (on 28. September 2021, 07:07) | 28 | 95 % |
| Battle With The Archers 27: Between Friends and Enemies (part 1) by Playmaker6174 (on 5. February 2022, 11:49) | 42 | 98 % |
| Tower Construct by Xenonetix (on 17. June 2022, 21:00) | 31 | 98 % |
| Three in the spotlight by Fool on Hill (on 11. September 2022, 15:21) | 21 | 92 % |
| Farsight by sunnyjum (on 24. October 2022, 06:45) | 22 | 91 % |
| Big Mac by ademjaz (on 2. May 2023, 21:52) | 28 | 96 % |
| Chaos Construction - Oenopion's Return by Niverio (on 31. May 2023, 22:18) | 92 | 96 % |
| BAUERNHOF - 3D-Buchstabenrätsel / 3D letter puzzle by DocLogic (on 24. July 2023, 15:15) | 29 | 96 % |
| Confluence 2: Dumediat Birthday Edition by mathpesto (on 31. August 2023, 17:41) | 60 | 99 % |
| Double Digit Drama by mormagli (on 21. February 2024, 06:25) | 20 | 98 % |
| Naitrular by Taky (on 13. June 2024, 11:40) | 19 | 92 % |
| U-Bahn with Empty Cells by Niverio (on 28. June 2024, 21:23) | 30 | 99 % |
| Hot Spot by juggler (on 21. August 2024, 09:35) | 50 | 97 % |
| The Taste of Entropy by Mad-Tyas (on 10. September 2024, 05:35) | 28 | 93 % |
| Circled X-Sums by RockyRoer (on 22. February 2023, 12:30) | 68 | 97 % |
| Orbital Killer by Realshaggy (on 22. August 2020, 14:29) | 52 | 99 % |
| Heads or Tails? by Xenonetix (on 27. July 2022, 15:51) | 37 | 99 % |
| 24 Rätsel in 24 Stunden (Teil 16) - Koralle by Zzzyxas (on 24. June 2017, 15:24) | 74 | 92 % |
| X-Square Whispers by Cane_Puzzles (on 15. May 2022, 17:20) | 34 | 96 % |
