(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 | |
|---|---|---|---|
 | to the minimal great hidden by aqjhs (on 30. December 2024, 01:23) | 90 |  93 % |
| Battle of Evermore by kuraban (on 17. February 2024, 03:03) | 158 | 96 % |
| Brooklands (Doubler/Region Sum Line) by damo_89 (on 22. April 2025, 00:08) | 64 | 96 % |
| Chaos Construction: Renbans by XeonRisq (on 11. August 2022, 05:00) | 57 | 92 % |
| Giraffe Hunt 2 by ralphwaldo1 (on 24. October 2024, 22:08) | 59 | 90 % |
| Glass Numbered Rooms by Xenonetix (on 27. April 2022, 01:23) | 77 | 99 % |
| Pierced Cages by Mark Sweep (on 29. January 2021, 10:00) | 36 | 94 % |
| Breach by vitaminz (on 16. May 2024, 00:15) | 35 | 98 % |
| Quivering quiver by NicoD (on 3. June 2025, 05:30) | 39 | 91 % |
| Hide and Seek by Jooshy (on 2. December 2025, 18:55) | 46 | 94 % |
| Keep your friends close by Killer Joe (on 3. April 2026, 17:20) | 33 | 94 % |
 | Thermo Unicorn 3 v2 by NurglesGift (on 14. May 2026, 19:24) | 40 | 94 % |
| 5K 5T by Joseph nehme (on 24. April 2021, 06:31) | 54 | 97 % |
| Battle With The Archers 38: The War of Three Worlds by Playmaker6174 (on 10. April 2023, 05:37) | 54 | 96 % |
| Sudoku Variants Series (305) - Encaged Kropki Sudoku by Richard (on 27. January 2021, 00:00) | 73 | 97 % |
| Chocolate Teapot by Qodec (on 5. May 2021, 16:01) | 75 | 97 % |
| Domino Fever (Entropy Edition) by Mad-Tyas (on 21. February 2022, 23:32) | 77 | 94 % |
| Across Roads (Deconstruction) by Sotehr (on 6. January 2025, 19:55) | 115 | 98 % |
| Yin Yang Sum Frame Sudoku by flutchman (on 21. December 2025, 21:10) | 156 | 98 % |
| ZAUBERN - MAGIE - Buchstabenrätsel by DocLogic (on 13. February 2020, 22:25) | 39 | 91 % |
