(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 | |
|---|---|---|---|
 | Schrödinger 202: Atomic Structure by ViKingPrime (on 24. September 2023, 21:00) | 31 |  97 % |
| Rank Up 09 - Schrödinger by ThePedallingPianist (on 26. July 2024, 02:17) | 36 | 95 % |
| i can't stop thinking about waffles by aqjhs (on 27. March 2025, 06:07) | 33 | 92 % |
| Lost and Found: A massive collaboration puzzle by Jeet Sampat (on 27. November 2025, 20:54) | 102 | 96 % |
| Modscrapers by grkles (on 15. November 2021, 04:28) | 34 | 99 % |
| Primesweeper: Strongbox by grkles (on 3. December 2021, 18:42) | 33 | 97 % |
| Shady Combination #2: Country Road, Heyawake, LITS, Yin Yang by Myxo (on 24. January 2023, 16:12) | 34 | 96 % |
| Dyslexic Arrows by Migu (on 6. June 2023, 00:34) | 34 | 91 % |
| Whispern't Loop by yttrio (on 6. July 2024, 02:04) | 69 | 96 % |
| Liescrapers by marty_sears (on 12. January 2025, 18:39) | 114 | 95 % |
| Jackson High by fjam (on 16. November 2022, 18:52) | 36 | 93 % |
| SC26 - Renban 3 by kuraban (on 8. December 2022, 04:30) | 36 | 97 % |
| Dante's Journey by SenatorGronk (on 30. August 2023, 16:00) | 38 | 97 % |
| Geometry Exam #4 by Blashyrkh (on 19. November 2023, 17:13) | 43 | 93 % |
| Midnight Express (Stations + Star Battle) by The Book Wyrm (on 17. February 2025, 18:30) | 39 | 93 % |
| Saturn's Moons by cristophermoore (on 9. June 2022, 00:25) | 74 | 100 % |
| Compression by Jay Dyer (on 1. September 2024, 21:33) | 110 | 97 % |
| KNAST, BANDIT, GANOVE - Buchstabenrätsel by DocLogic (on 21. February 2020, 18:13) | 35 | 94 % |
| Cipher Hungarian Tapa by the_cogito (on 5. April 2023, 21:49) | 35 | 94 % |
| Wreathe (Dual Masyu/Yin Yang) by dumediat (on 3. March 2024, 00:00) | 43 | 98 % |
