(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 | |
|---|---|---|---|
 | The Renban Code by juggler (on 18. August 2024, 12:10) | 53 |  95 % |
| The church of not three by filuta (on 29. August 2024, 23:56) | 50 | 98 % |
| Höhlen-U-Bahn (Teil 3) by Zzzyxas (on 18. May 2019, 11:31) | 73 | 100 % |
| Roller Coaster mit Extras 18 by Uhu (on 10. May 2020, 20:16) | 39 | 98 % |
| The French Connec7ion by Zombie Hunter (on 20. July 2021, 22:45) | 43 | 97 % |
| X-Sum Skyscraper (hybrid) by GarlicBredFries (on 15. November 2021, 07:53) | 34 | 95 % |
| Hide and Xeek by HalfBakedLunatic (on 24. December 2023, 03:32) | 46 | 93 % |
| Six Loop by oskode (on 25. August 2025, 06:06) | 42 | 92 % |
| Chaos Construction: Bread and Pie by Myxo (on 21. May 2025, 14:39) | 147 | 99 % |
| Broken Fence by Myxo (on 2. December 2022, 01:16) | 94 | 98 % |
| U-Bahn mit gemischten Hinweisen (Teil 2) by Zzzyxas (on 28. December 2019, 13:32) | 48 | 99 % |
| Anti-Springer Killer, "Turfan Fragment" by glum_hippo (on 23. March 2021, 20:14) | 32 | 91 % |
| The 3-Colour Theorem by starwarigami (on 10. February 2023, 19:54) | 103 | 96 % |
| U-Bahn by Piatato (on 14. August 2023, 10:54) | 48 | 98 % |
| Cascade by zetamath (on 20. August 2023, 15:43) | 86 | 93 % |
| The Electrified Trio by Playmaker6174 (on 26. August 2023, 09:15) | 28 | 94 % |
| Slingshot Full Rank Fillomino by Piatato (on 27. December 2024, 18:38) | 26 | 100 % |
| Decompression by ThePedallingPianist (on 25. January 2025, 15:40) | 27 | 96 % |
| The Phantom Locker by Sumanta(ANU) (on 18. March 2025, 04:16) | 111 | 96 % |
| Mut zur Lücke! by Wuschel (on 28. October 2023, 16:14) | 69 | 98 % |
