(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 | |
|---|---|---|---|
 | Close Enough by MSDOS (on 3. August 2024, 05:51) | 16 |  90 % |
| on elliptic hyperboles by aqjhs (on 11. November 2024, 11:11) | 39 | 92 % |
| SUPER - Buchstabenrätsel / Letter Puzzle by DocLogic (on 24. September 2024, 17:45) | 26 | 94 % |
| Drift by zetamath (on 11. October 2024, 18:56) | 29 | 98 % |
| Inside by zetamath (on 13. October 2024, 19:05) | 73 | 95 % |
| Madness [Masyu with Cages] by wisty (on 15. October 2024, 23:54) | 34 | 96 % |
| Cross Stitch by Sotehr (on 24. October 2024, 10:00) | 17 | 92 % |
| 2:1 Architecture by Scruffamudda (on 16. November 2024, 06:11) | 52 | 97 % |
| One total by psninn (on 28. November 2024, 17:35) | 49 | 94 % |
| Halves and Halve-Nots by ViKingPrime (on 6. December 2024, 21:22) | 16 | 92 % |
| Regional Yajilin Sudoku by Myxo (on 7. December 2024, 12:23) | 32 | 94 % |
| [TSL][S1T2] Chaotic Journey: Is this .... ? by yttrio (on 28. December 2024, 02:00) | 16 | 98 % |
| Bridge Four by Calvinball (on 5. January 2025, 06:31) | 41 | 92 % |
| Chaos Construction: Arrow Knots by Myxo (on 2. January 2025, 08:51) | 141 | 98 % |
| Quantum Entanglement by Scojo (on 6. January 2025, 06:26) | 50 | 96 % |
| Liescrapers by marty_sears (on 12. January 2025, 18:39) | 80 | 96 % |
| out of the ether by aqjhs (on 22. January 2025, 02:22) | 24 | 95 % |
| The Good, the Bad and the Circled (fillomino) by SkepticalMario (on 6. February 2025, 14:38) | 19 | 95 % |
| 33 by arctan (on 11. February 2025, 06:21) | 20 | 95 % |
| Midnight Express (Stations + Star Battle) by The Book Wyrm (on 17. February 2025, 18:30) | 18 | 98 % |
