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 | |
---|---|---|---|
![]() | Mean Samurai by JayForty (on 9. January 2023, 17:11) | 80 | ![]() 96 % |
![]() | Temperamental Triplets by rockratzero (on 16. September 2022, 17:34) | 60 | ![]() 96 % |
![]() | Wail by mathpesto (on 25. February 2025, 17:26) | 55 | ![]() 94 % |
![]() | Extremities by Joseph nehme (on 10. July 2024, 08:06) | 95 | ![]() 95 % |
![]() | Half the Digits (Killer) by Cane_Puzzles (on 24. May 2024, 18:06) | 172 | ![]() 96 % |
![]() | KOPF - Buchstabenrätsel / Letter Puzzle by DocLogic (on 13. September 2020, 12:55) | 36 | ![]() 96 % |
![]() | Eye of the Beholder by Skunkworks (on 5. June 2022, 01:50) | 37 | ![]() 90 % |
![]() | Dead Roman Miracle by Fool on Hill (on 30. July 2022, 11:26) | 79 | ![]() 94 % |
![]() | 23 Killer by Florian Wortmann (on 18. January 2023, 18:50) | 78 | ![]() 95 % |
![]() | 4x4 Arrow XV Sudokus by SudokuExplorer (on 1. April 2022, 08:00) | 45 | ![]() 94 % |
![]() | Vivian by wooferzfg (on 4. September 2022, 19:13) | 52 | ![]() 96 % |
![]() | Anti-knight × killer × arrow by psninn (on 7. November 2024, 14:13) | 73 | ![]() 93 % |
![]() | Killer sudoku 2011 - 2012 by Richard (on 31. December 2011, 13:00) | 76 | ![]() 93 % |
![]() | Polynesia (Nurikabe Deconstruction) by Agent (on 27. September 2022, 09:00) | 100 | ![]() 99 % |
![]() | Kleine Hochhausserie: Finale (von allem etwas) by CHalb (on 9. December 2013, 12:03) | 43 | ![]() 97 % |
![]() | Mini-Höhle (2) by r45 (on 20. November 2018, 17:29) | 33 | ![]() 91 % |
![]() | Toroidal Chess Sudoku #3 - Thermo by Rotstein (on 10. June 2020, 21:07) | 19 | ![]() 96 % |
![]() | Z-Sums Sudoku 3 by Semax (on 4. October 2020, 08:21) | 17 | ![]() 98 % |
![]() | Rounding Errors by Eclectic_Hoosier (on 12. May 2021, 16:52) | 18 | ![]() 96 % |
![]() | Shuriken 手裏剣 by ___ (on 1. July 2021, 14:06) | 17 | ![]() 94 % |