(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 | |
|---|---|---|---|
 | Nowhere to Run (Arrow Sudoku) by AnalyticalNinja (on 1. October 2023, 02:26) | 27 |  95 % |
| Line Of Sight by arbitrary (on 17. October 2023, 01:05) | 30 | 93 % |
| Lockenweide by Myxo (on 14. November 2023, 12:57) | 63 | 93 % |
| Leehwnip [Nabner] by Miky (on 22. November 2023, 20:47) | 58 | 97 % |
| I Made A Pencil Puzzle: Ciphered Tapa (18x18) by Playmaker6174 (on 12. December 2023, 11:00) | 32 | 97 % |
| Three in the Corner by DadJokes (on 22. December 2023, 20:54) | 19 | 95 % |
| Outside In by XeonRisq (on 27. December 2023, 03:00) | 11 | 100 % |
| Ice Cream Sandwich by DadJokes (on 27. December 2023, 20:54) | 12 | 91 % |
| Release the Winch! by 99%Sneaky (on 29. December 2023, 18:48) | 40 | 92 % |
| Meanest Mini by chameleon (on 1. January 2024, 17:10) | 73 | 98 % |
| Epiphany - Chapter III: Beyond the Miracle by Playmaker6174 (on 1. January 2024, 22:00) | 19 | 96 % |
| The Knights of Ni! Finally Get Their Shrubbery by HalfBakedLunatic (on 12. January 2024, 17:06) | 49 | 93 % |
| TEQUILA - Buchstabenrätsel / Letter Puzzle by DocLogic (on 13. January 2024, 15:46) | 32 | 98 % |
| Double Negative by JeremyDover (on 17. January 2024, 21:12) | 30 | 100 % |
| Etch-A-Sketch by ThePedallingPianist (on 24. January 2024, 01:47) | 29 | 93 % |
| Chaos Theory by Cipher Savant (on 24. January 2024, 16:18) | 13 | 90 % |
| Enigmatic Entropic Snake by starwarigami (on 31. January 2024, 00:00) | 32 | 91 % |
| Mad Marty's Moneymaker by heliopolix (on 8. February 2024, 20:44) | 17 | 90 % |
| Kropki Fillomino 2 by SudokuExplorer (on 20. February 2024, 20:00) | 30 | 97 % |
| Im Obstgarten (Sudoku) by glum_hippo (on 7. March 2024, 20:17) | 46 | 97 % |
