(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 | |
|---|---|---|---|
 | Friendly Mean Thermo by Prof.Dori (on 12. August 2024, 19:21) | 12 |  93 % |
| 24 Rätsel in 24 Stunden (Teil 18) - Yajilin by Zzzyxas (on 24. June 2017, 17:24) | 68 | 92 % |
| Hyperloop (Double Trouble) by Mad-Tyas (on 10. November 2021, 13:53) | 18 | 97 % |
| Small Phistomefel by Stoer (on 23. April 2023, 13:19) | 21 | 91 % |
| Happy Birthday Piatato: A Doppelblock U-Bahn by wisty (on 30. August 2023, 03:33) | 33 | 99 % |
| Opposition (Black holes/Killer/Teleporting little killer) by dumediat (on 9. February 2024, 12:00) | 17 | 98 % |
| Chaotic Addition by Manta-Ray (on 7. October 2024, 13:09) | 16 | 92 % |
| Chock-a-Block by marty_sears (on 14. May 2024, 01:46) | 55 | 97 % |
| Equilibrium by Xendari (on 18. August 2022, 14:04) | 64 | 98 % |
| Your ways are numbered (broken 159, killer, disjoint) by Chilly (on 24. January 2022, 00:29) | 25 | 93 % |
| The Equalizer by Playmaker6174 (on 11. September 2024, 10:00) | 21 | 93 % |
| Ereignisreiches Rätseljahr by Zzzyxas (on 31. December 2013, 06:00) | 25 | 97 % |
| Unusual journey of a lonely knight (chaos construction) by filuta (on 16. August 2021, 01:09) | 26 | 97 % |
| King by ICHTUES (on 22. August 2021, 06:00) | 57 | 95 % |
| Blackjack by apiyo (on 27. October 2020, 07:41) | 34 | 91 % |
| Friends² by JoWovrin (on 1. November 2021, 19:16) | 64 | 100 % |
| Japanese Sums #5: Disposition by Myxo (on 10. October 2023, 11:55) | 61 | 98 % |
| Hells Bells by Christounet (on 10. July 2023, 23:15) | 89 | 96 % |
| Scattered Odd Killer by MavericksJD (on 10. May 2021, 13:23) | 26 | 98 % |
| Tumbleweeds by djorr (on 6. September 2021, 14:00) | 19 | 97 % |
