(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 | |
|---|---|---|---|
 | Krypto-U-Bahn - knapp daneben by ibag (on 22. May 2013, 22:33) | 43 |  96 % |
| Seer (Chaos Construction) by sfushidahardy (on 11. October 2024, 04:24) | 44 | 99 % |
| Consecutive Steps by Scruffamudda (on 5. April 2023, 08:20) | 41 | 94 % |
| Bullet Train by wooferzfg (on 11. April 2023, 05:29) | 37 | 100 % |
| Segue Ursa by Prof.Dori (on 18. January 2024, 01:21) | 36 | 98 % |
| Stepping Stone Sandwiches by RockyRoer (on 1. April 2024, 18:36) | 37 | 95 % |
| HBD Niverio by twototenth (on 27. December 2022, 08:00) | 71 | 96 % |
| These Aren't The Circles You're Looking For by Jay Dyer (on 7. August 2024, 00:02) | 64 | 96 % |
| Little Killer Sandwiches Sudoku by Jesper (on 6. June 2020, 13:53) | 55 | 95 % |
| SLICY of Life by BenceJoful (on 2. December 2020, 00:48) | 28 | 100 % |
| Arrow Squaring [Killer, Arrow] by Miky (on 31. August 2021, 21:43) | 27 | 95 % |
| Van Helsing by the_cogito (on 8. February 2022, 17:40) | 27 | 97 % |
| Jealousy by mith (on 7. March 2022, 20:22) | 32 | 96 % |
| Shyscrapers by Lisztes (on 25. July 2022, 23:30) | 25 | 100 % |
| Shuriken by XeonRisq (on 4. June 2023, 22:00) | 61 | 94 % |
| Hashiwokakero by Myxo (on 19. September 2023, 08:25) | 26 | 96 % |
| Meidjuluk N=15 by PrimeWeasel (on 29. September 2023, 16:16) | 28 | 100 % |
| Glass Numbered Rooms by Xenonetix (on 27. April 2022, 01:23) | 71 | 99 % |
| Jubiläumsrätsel - 4 Jahre Rätselportal by Richard (on 1. November 2012, 00:00) | 87 | 98 % |
| Killer Knights by Cane_Puzzles (on 29. October 2021, 19:58) | 53 | 97 % |
