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 | |
---|---|---|---|
Chaos Construction: Pathfinder (9x9) by KNT (on 3. October 2022, 23:31) | 95 | 97 % | |
Chaos Deconstruction: Japanese Sum by Phistomefel (on 13. February 2023, 20:00) | 93 | 98 % | |
Riverbank - Episode 4: Nessie by henrypijames (on 20. May 2022, 09:26) | 17 | 98 % | |
Chaos Construction : Wrogn by lerroyy (on 8. June 2022, 20:59) | 58 | 98 % | |
Japanese Japanese Sums Sums #1 by The Book Wyrm (on 30. November 2023, 22:11) | 20 | 98 % | |
Tetris Sum Line by Chad (on 2. March 2024, 00:51) | 19 | 100 % | |
Whirlpool by FryTheGuy (on 26. August 2021, 17:16) | 18 | 95 % | |
Even Small Prime by FryTheGuy (on 13. December 2021, 16:28) | 16 | 98 % | |
Dynamic Construction by Niverio (on 6. April 2022, 00:26) | 34 | 99 % | |
Palindrome Arrow Sudoku by EliasKar (on 11. September 2021, 03:08) | 15 | 94 % | |
The S-Cell Miracle by Niverio (on 22. May 2022, 16:40) | 50 | 97 % | |
Missile Command by Xenonetix (on 13. July 2022, 00:44) | 29 | 95 % | |
Entropia (Skyscraper, Entropy) by Mad-Tyas (on 16. January 2023, 12:15) | 38 | 90 % | |
Sailing by ThePedallingPianist (on 15. February 2023, 00:18) | 18 | 98 % | |
Japanese Sums #2: Killer Cages Fillomino by lerroyy (on 3. March 2023, 14:29) | 15 | 98 % | |
Invisible Killers by yttrio (on 10. March 2023, 21:32) | 31 | 98 % | |
Circled Killers by SparkNights (on 12. December 2023, 15:11) | 31 | 96 % | |
Working Nine To Five by fjam (on 8. January 2024, 20:03) | 16 | 94 % | |
Entropic Loop Chaos by yttrio (on 9. February 2024, 19:28) | 64 | 96 % | |
Unique Japanese Sum Sudoku by tesseralis (on 28. July 2023, 05:34) | 69 | 98 % |