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 | |
---|---|---|---|
![]() | Wichtel 2019 (10): Die Wohnquartiere der Wichtel by wichtel (on 2. November 2020, 19:20) | 50 | ![]() 100 % |
![]() | Pentominous + Killer Sudoku by mandourin (on 2. October 2020, 23:48) | 15 | ![]() 98 % |
![]() | Sudoku Variants Series (292) - Coordinates Sudoku by Richard (on 28. October 2020, 00:00) | 57 | ![]() 96 % |
![]() | X-Distance Sudoku(2)——Hard by cdwg2000 (on 18. November 2020, 16:47) | 26 | ![]() 92 % |
![]() | Compass Sudoku by stephane.bura (on 25. December 2020, 00:00) | 41 | ![]() 100 % |
![]() | Sudoku Variants Series (305) - Encaged Kropki Sudoku by Richard (on 27. January 2021, 00:00) | 66 | ![]() 97 % |
![]() | 159 with 234678 by panthchesh (on 19. September 2021, 01:14) | 37 | ![]() 90 % |
![]() | Smörgåsbord by Qodec (on 2. November 2021, 23:17) | 54 | ![]() 95 % |
![]() | Thermosnakes by Nordy (on 21. April 2022, 08:00) | 41 | ![]() 94 % |
![]() | Übungsrätsel für die LM 2022: Bewegung bitte! by lupo (on 17. June 2022, 12:00) | 13 | ![]() 98 % |
![]() | Paint by Numbers by ste221093 (on 19. August 2022, 19:59) | 13 | ![]() 91 % |
![]() | Robin Hood (Anti-king, Arrow Sudoku) by juddimal (on 2. September 2022, 23:39) | 29 | ![]() 90 % |
![]() | Dobbledoku by krtekcze (on 27. April 2023, 14:10) | 27 | ![]() 93 % |
![]() | Little Killer Sandwiches by Jreg (on 6. September 2023, 07:00) | 69 | ![]() 93 % |
![]() | Prime Viking by heliopolix (on 21. February 2024, 13:55) | 13 | ![]() 95 % |
![]() | Club 27 (Thermo Sudoku) by Blashyrkh (on 22. March 2024, 22:12) | 92 | ![]() 99 % |
![]() | Individuality by arbitrary (on 3. May 2024, 20:58) | 39 | ![]() 95 % |
![]() | 789 by LittleNightmaresLady (on 21. June 2023, 18:03) | 98 | ![]() 96 % |
![]() | Februar Prim-Monat (3) - Prim Killer (B) by Richard (on 10. February 2012, 12:00) | 61 | ![]() 92 % |
![]() | Killer Around the Corner by SudokuExplorer (on 20. April 2021, 01:00) | 63 | ![]() 96 % |