(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 Difference Between a Cage by Mr.Goodkitteh (on 28. April 2021, 15:47) | 21 |  98 % |
| Living on the Diagonal by Sktx (on 25. May 2021, 00:10) | 20 | 97 % |
| Orderly Little Killer 3 by Strosahl (on 2. July 2021, 07:11) | 17 | 92 % |
| Cursor by ICHTUES (on 26. December 2021, 06:00) | 17 | 95 % |
| Fire Watchers by Angelo (on 15. March 2022, 23:09) | 19 | 97 % |
| Shikaku Kropkiesque by MavericksJD (on 29. May 2022, 00:00) | 20 | 90 % |
| Entangled by Flywinged (on 23. August 2022, 16:23) | 22 | 90 % |
| Archer's Tale: The Roundtable by Playmaker6174 (on 7. October 2022, 11:26) | 38 | 97 % |
| Shady Combination #1: Cave, Pentominos, Slitherlink, Snake by Myxo (on 9. January 2023, 15:33) | 53 | 99 % |
| Echo Chamber by ndsurgenor (on 26. February 2023, 11:00) | 20 | 93 % |
| Line of Sight [German Whisper, Renban] by 3good5you (on 30. July 2023, 02:35) | 21 | 92 % |
| Leaning Tower by marty_sears (on 4. November 2023, 09:10) | 134 | 98 % |
| 3 1 by 1 4 (on 13. March 2024, 00:31) | 23 | 93 % |
| Balanceo by ralphwaldo1 (on 8. April 2024, 22:48) | 20 | 92 % |
| Little region sum with CC by psninn (on 8. July 2025, 14:02) | 45 | 96 % |
| Chevrons by NicoD (on 16. July 2025, 05:30) | 50 | 92 % |
| DoppLKänger by ChinStrap (on 2. December 2025, 18:59) | 61 | 98 % |
| Misdirection? by Fool on Hill (on 6. April 2026, 23:35) | 16 | 95 % |
| Counterpoint (Arrow) by SeveNateNine (on 7. April 2026, 08:25) | 20 | 98 % |
| Golden Killer by Rab3aron (on 21. April 2026, 09:18) | 61 | 91 % |
