(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 | |
|---|---|---|---|
 | Zero Ate Five by XeonRisq (on 13. July 2022, 04:00) | 23 |  92 % |
| Ambiguous Little Killer + X-Sums Clues by Jeet Sampat (on 27. October 2022, 16:07) | 26 | 96 % |
| Death Stare by Die Hard (on 5. February 2023, 21:21) | 26 | 92 % |
| Limitless Potential #2: The Wanderer's Path by Playmaker6174 (on 12. May 2023, 16:49) | 22 | 95 % |
| ⟊ Mid-Loop ⟊ by ElChiglia (on 24. February 2024, 07:15) | 24 | 91 % |
| Galactic Whispers by Knickolas (on 15. July 2023, 10:24) | 57 | 95 % |
| Das Krypto-ABC-tje des Außerirdischen by ibag (on 22. August 2012, 14:56) | 30 | 95 % |
| Die Kryptos - S04E06: Kariertes Fillomino (Variante) by tuace (on 21. January 2020, 08:06) | 32 | 98 % |
| Find the Triplet by Mesmer (on 24. February 2020, 23:14) | 33 | 91 % |
| Hide and Xeek by HalfBakedLunatic (on 24. December 2023, 03:32) | 41 | 94 % |
| Crime of Passion by lmdemasi (on 24. December 2023, 12:13) | 36 | 92 % |
| Route 5 (Instructionless) by Agent (on 16. January 2024, 09:00) | 32 | 100 % |
| X Marks The Spot by Djmelee3000 (on 11. September 2020, 08:51) | 46 | 97 % |
| Renban Rocket by the_cogito (on 3. January 2022, 18:20) | 45 | 96 % |
| Line of Sight (9x9 Chaos Construction) by ONeill (on 22. October 2022, 02:01) | 50 | 99 % |
| U-Bahn with Empty Clues (3) by KNT (on 27. July 2023, 04:46) | 54 | 99 % |
| 2024 by starwarigami (on 31. December 2023, 00:00) | 61 | 96 % |
| Battle With The Archers 34 - The Climax: The Vow of Three Worlds by Playmaker6174 (on 15. July 2022, 08:06) | 77 | 97 % |
| 5 Years Portal Anniversary by Richard (on 1. November 2013, 12:02) | 93 | 98 % |
| A 38 II by tuace (on 4. September 2016, 17:27) | 55 | 99 % |
