(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 | |
|---|---|---|---|
 | Menagerie by SSG (on 13. December 2022, 07:14) | 27 |  95 % |
| Prison Party of Eight by lepton (on 10. January 2023, 18:59) | 21 | 94 % |
| Time by lerroyy (on 13. January 2023, 19:26) | 20 | 92 % |
| Symphony (Entropy Killer) by Mad-Tyas (on 6. February 2023, 08:28) | 38 | 97 % |
| O'Position [Ciphered Position Sums Fillomino] by Christounet (on 30. April 2023, 22:51) | 22 | 99 % |
| Thinking in Circles by Mennoo_ (on 22. June 2023, 11:34) | 23 | 93 % |
| Surgical Excision by HalfBakedLunatic (on 1. July 2023, 05:02) | 44 | 96 % |
| Locomotive by wooferzfg (on 20. July 2023, 20:28) | 33 | 96 % |
| Impossible Objects by tesseralis (on 8. September 2023, 07:40) | 40 | 98 % |
| Sandwich X Circles by ICHTUES (on 8. October 2023, 06:00) | 21 | 90 % |
| A kyler map [BYO Killer Deconstruction] by Christounet (on 16. October 2023, 18:29) | 34 | 98 % |
| Desert Deity by DadJokes (on 1. December 2023, 19:43) | 38 | 95 % |
| Yo Dawg by lmdemasi (on 29. January 2024, 01:38) | 18 | 98 % |
| Giraffe Hunt by ralphwaldo1 (on 10. February 2024, 21:13) | 28 | 90 % |
| Parity Party XXIX, "Psy Ops" by glum_hippo (on 3. April 2024, 00:38) | 16 | 95 % |
| The Unity of Opposites by ViKingPrime (on 19. May 2024, 00:45) | 37 | 92 % |
| Afar by Andrewsarchus (on 28. June 2024, 08:57) | 18 | 93 % |
| .357 Magnum by EricRathbun (on 1. March 2025, 06:33) | 23 | 93 % |
| Ripples by the_cogito (on 6. September 2024, 17:54) | 15 | 92 % |
| Frame Product Sandwich by RockyRoer (on 1. March 2025, 20:49) | 32 | 94 % |
