(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 | |
|---|---|---|---|
 | Stretch marks by Qodec (on 23. March 2022, 21:37) | 103 |  98 % |
| Who Likes Knights? by Yawnus (on 30. June 2022, 10:12) | 18 | 96 % |
| Cartesian 159 by noswald (on 19. August 2022, 07:09) | 16 | 91 % |
| Time Twister (Killer/Entropic Lines) by Tyrgannus (on 31. August 2022, 23:15) | 48 | 95 % |
| Dobbledoku by krtekcze (on 27. April 2023, 14:10) | 30 | 93 % |
| Poshley Heights by wooferzfg (on 17. May 2023, 06:04) | 34 | 99 % |
| No Odd Cages (Parity line / killer sudoku) by Mr.Menace (on 11. June 2023, 09:01) | 44 | 97 % |
| Rivets by XeonRisq (on 12. June 2023, 04:00) | 70 | 96 % |
| Mixed Doubles by marty_sears (on 28. August 2023, 18:38) | 66 | 96 % |
| [159] Tilted by W1DEMAN (on 27. September 2023, 06:45) | 32 | 92 % |
| Jellyfish Jam [Anti-King Akari RGB] by wisty (on 26. October 2023, 02:46) | 14 | 100 % |
| Fours & Fives by Scruffamudda (on 27. November 2023, 02:24) | 14 | 92 % |
| Roller Coaster by igniteice (on 29. November 2023, 05:58) | 27 | 92 % |
| Two Trips by igniteice (on 1. January 2024, 00:48) | 57 | 96 % |
| Knights in Cages by Bert (on 29. January 2024, 16:41) | 50 | 96 % |
| Run, run, run, run, run, run, run away by heliopolix (on 1. February 2024, 00:00) | 19 | 94 % |
| Technodrome by Kafkapharnaum (on 4. March 2024, 03:51) | 15 | 96 % |
| Circumlocution by LibardiA (on 12. March 2024, 17:03) | 23 | 94 % |
| Regional Differences by Laake (on 22. April 2024, 22:50) | 82 | 98 % |
| Slingshot Skirmish 4 - Mirror Match by Allagem (on 30. April 2024, 13:34) | 39 | 91 % |
