(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 | |
|---|---|---|---|
 | Battle With The Archers 19: War Games by Playmaker6174 (on 8. October 2021, 12:33) | 35 |  95 % |
| In The Middle of The Knight by Ridhwan (on 30. March 2023, 09:00) | 36 | 92 % |
| A Zip of Blood (Vampires, Zippers) by gdc (on 13. March 2024, 17:46) | 40 | 93 % |
| XV*Magic 4 by NurglesGift (on 21. December 2024, 13:33) | 114 | 96 % |
| Ausgedehnte Mittagspause by Richard (on 26. February 2010, 12:00) | 65 | 97 % |
| Lasersummen (3) by BFaw (on 20. January 2012, 20:10) | 31 | 96 % |
| Adventskalender 2020, Türchen 16 - Twilight-Höhle by Zzzyxas (on 16. December 2020, 07:00) | 67 | 99 % |
| 真笑Puzzles038--Chaos Construction-- “韩非子” 003 by cdwg2000 (on 6. April 2021, 14:18) | 30 | 98 % |
| Instructionless by Jesper (on 8. December 2021, 09:27) | 59 | 97 % |
| Lines of the Banner by JeremyDover (on 29. January 2022, 14:11) | 37 | 95 % |
| Reserved Parking (rush hour + variant sudoku) by rockratzero (on 30. April 2023, 10:58) | 68 | 93 % |
| Line of Sight Chaos Production by RockyRoer (on 29. January 2022, 03:39) | 58 | 99 % |
| Parity Renban by Oddlyeven (on 4. February 2023, 18:16) | 62 | 95 % |
| Pseudo Differences by marty_sears (on 20. February 2024, 21:00) | 70 | 99 % |
| Battlefield Sudoku by Realshaggy (on 31. May 2020, 13:08) | 59 | 96 % |
| The Key by jetalix (on 8. January 2021, 20:02) | 27 | 98 % |
| Killers 123...go by abed hawila (on 21. May 2021, 09:02) | 57 | 96 % |
| Irregional by riffclown (on 2. April 2022, 19:21) | 29 | 92 % |
| Wichtel 2011 (10): Japanische Summen - knapp daneben by wichtel (on 7. March 2012, 10:00) | 75 | 97 % |
| 159 Shards by Qodec (on 22. September 2021, 12:36) | 83 | 92 % |
