(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 | |
|---|---|---|---|
 | Mercurial Maxima by AFrayedKnot (on 13. June 2022, 17:59) | 22 |  99 % |
| Thermodynamics (Thermo, Entropy) by Mad-Tyas (on 13. March 2023, 09:36) | 42 | 90 % |
| Overlarge by Jay Dyer (on 1. May 2023, 14:40) | 73 | 98 % |
| Chaos Deconstruction: Sightlines by KNT (on 11. June 2023, 00:07) | 86 | 95 % |
| Double? Or Nothing? [Doublers, Killer, Zeroers] by 3good5you (on 6. August 2023, 06:07) | 14 | 94 % |
| Killocator: Dead or Alive by starwarigami (on 28. February 2024, 10:17) | 23 | 92 % |
| Nosferatu Crossfire by Mad-Tyas (on 14. January 2025, 08:02) | 18 | 92 % |
| The Enchantments (GW loop Chaos Deconstruction) by SeveNateNine (on 26. July 2025, 20:55) | 31 | 99 % |
| Wildflowers by mathpesto (on 28. May 2023, 18:09) | 77 | 96 % |
| Crypto Japanese Twilight Cave by KNT (on 23. October 2022, 06:02) | 49 | 99 % |
| Roller Coaster mit Extras 14 by Uhu (on 28. May 2019, 23:14) | 41 | 98 % |
| Shockwaves by Jay Dyer (on 12. November 2022, 20:32) | 74 | 95 % |
| Crypto Japanese Cave with Three Extraterrestrials by KNT (on 21. February 2023, 04:18) | 34 | 100 % |
| Rollercoaster Deconstruction by tallcat (on 3. April 2023, 20:36) | 67 | 97 % |
| Fillomino Chaos Construction by dennischen (on 23. May 2023, 08:46) | 68 | 100 % |
| Ausgrabungen in Limcastregos by Luigi (on 25. August 2017, 11:43) | 26 | 92 % |
| The Song of the Serpent and the Wanderer - A tribute to Nordy by damasosos92 (on 17. July 2023, 03:40) | 65 | 94 % |
| Chaotic Choice by Manta-Ray (on 14. January 2026, 18:11) | 31 | 98 % |
| Loopy Territories by masetab (on 1. February 2026, 15:06) | 35 | 97 % |
| Verzwicktes ABCtje by ibag (on 23. October 2011, 09:42) | 21 | 93 % |
