(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 | |
|---|---|---|---|
 | Guidelines by DarthParadox (on 3. July 2023, 08:11) | 17 |  96 % |
| Partition [Little Killer, Yin-Yang Sight Arrows] by 3good5you (on 27. July 2023, 08:56) | 16 | 94 % |
| Negator XS by thoughtbyte (on 13. September 2023, 00:55) | 67 | 97 % |
| Fillominoku by jsmirob (on 15. December 2023, 02:40) | 18 | 94 % |
| Cobra's Curse by IcyFruit (on 1. February 2024, 14:37) | 82 | 97 % |
| Fortune Cookie by pieguy (on 30. January 2024, 01:53) | 33 | 91 % |
| Islands 4: Chaos Theory by SamuPiano (on 13. March 2024, 20:00) | 14 | 94 % |
| Sight Lines Sum (Yin Yang) by palpot (on 15. May 2024, 21:00) | 37 | 95 % |
| Copycat Choco Banana by Scojo (on 6. August 2024, 01:46) | 14 | 98 % |
| Build Your Own Sloop: Motherboard (9x9) by Playmaker6174 (on 9. August 2024, 10:30) | 14 | 98 % |
| Set of Shurikens by SamuPiano (on 20. September 2024, 15:44) | 18 | 96 % |
| Yakamoz by Niverio (on 22. December 2024, 11:28) | 18 | 100 % |
| Falling Arrows by antiknight (on 24. December 2022, 02:44) | 83 | 94 % |
| Gravity by jovi_al (on 19. May 2021, 19:16) | 112 | 97 % |
| Four Corners (Arrow Killer X) by tallcat (on 13. May 2021, 15:02) | 92 | 99 % |
| Ten - Qodec Collab by the_cogito (on 6. May 2022, 19:39) | 43 | 94 % |
| Sub Zero Nabner by gdc (on 27. September 2023, 13:05) | 48 | 96 % |
| Psst, I'm in the Loop by Calvinball (on 9. July 2024, 15:15) | 49 | 94 % |
| Arctic Expedition by Calesch (on 29. June 2024, 21:38) | 72 | 94 % |
| Killer Square Sudoku by ProwlingTiger (on 28. April 2020, 04:38) | 29 | 94 % |
