(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 | |
|---|---|---|---|
 | LM-Training: Five Fences by JonaS2010 (on 31. May 2018, 22:15) | 52 |  98 % |
| Arr Arr (Doubler Arrow) by ICHTUES (on 14. August 2022, 06:00) | 57 | 97 % |
| Doggo Adventure #11 by waffles_the_dog (on 9. February 2023, 10:56) | 30 | 91 % |
| Madness by jwsinclair (on 12. March 2023, 20:20) | 29 | 96 % |
| Square Dancing by EricRathbun (on 1. October 2024, 10:16) | 27 | 90 % |
| Combi Windoku by Richard (on 23. July 2009, 09:57) | 115 | 91 % |
| Hidden X-Sums & Sandwiches by BL00DW0LF (on 7. August 2020, 05:39) | 29 | 90 % |
| High Life by Aaronomys (on 24. April 2021, 10:29) | 33 | 98 % |
| 真笑Puzzles040--Chaos Construction-- “孙子” 002 by cdwg2000 (on 19. May 2021, 14:59) | 27 | 99 % |
| Connon by PrimeWeasel (on 4. July 2021, 11:06) | 27 | 92 % |
| Red Colour by apiyo (on 16. April 2022, 14:02) | 32 | 95 % |
| Why Did It Have To Be Snakes? by DadJokes (on 7. September 2022, 18:41) | 32 | 96 % |
| Overlaps by damasosos92 (on 13. March 2023, 01:20) | 26 | 90 % |
| Split Connections (U-Bahn + Loop) by Nordy (on 31. July 2023, 08:00) | 26 | 96 % |
| Ringban Octopus by ThePedallingPianist (on 22. August 2024, 14:23) | 27 | 93 % |
| Pentomino-Hitori by tyskhubi (on 2. August 2014, 09:41) | 31 | 94 % |
| Azulejos by ndsurgenor (on 15. March 2022, 14:42) | 32 | 96 % |
| Aqraf by CJK (on 24. October 2022, 19:49) | 36 | 94 % |
| Elevator by the_cogito (on 27. October 2022, 15:27) | 33 | 90 % |
| MAERZ APRIL MAI - Buchstabenrätsel / Letter Puzzle by DocLogic (on 1. March 2024, 01:03) | 30 | 97 % |
