(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 | |
|---|---|---|---|
 | out of the ether by aqjhs (on 22. January 2025, 02:22) | 31 |  95 % |
| Gemüse - Buchstabenrätsel / Letter Puzzle by DocLogic (on 16. January 2025, 15:09) | 27 | 95 % |
| Decompression by ThePedallingPianist (on 25. January 2025, 15:40) | 35 | 97 % |
| XV*Magic 8 (Stolen Magic) by NurglesGift (on 26. January 2025, 13:46) | 54 | 90 % |
| Ars Magna by Kafkapharnaum (on 8. February 2025, 19:55) | 17 | 98 % |
| Alligator by zetamath (on 21. February 2025, 16:09) | 44 | 92 % |
| Mini-Colossal Octoquadri I: Loop 12 by MaizeGator (on 20. March 2025, 02:53) | 22 | 92 % |
| Forever Young by .proxz14 (on 15. April 2025, 16:00) | 37 | 93 % |
| Positive Negativity 4 by The Bard (on 25. March 2025, 05:49) | 33 | 90 % |
| Siena (Geradeweg-like loop) by sfushidahardy (on 3. April 2025, 04:49) | 18 | 98 % |
| U-Bahn with Empty Clues (Toroidal) (asst. the_cogito) by KNT (on 5. April 2025, 23:23) | 31 | 97 % |
| Cage Play 1: Kropkiller by HalfBakedLunatic (on 7. April 2025, 06:31) | 36 | 93 % |
| Setting The Hours Aside by MathGuy_12 (on 13. April 2025, 23:58) | 14 | 98 % |
| Amoeba Festival (Yajilin + Nawabari) by sfushidahardy (on 27. April 2025, 19:33) | 28 | 94 % |
| top shelf 2% lactose free by aqjhs (on 14. June 2025, 16:59) | 24 | 93 % |
| Celtic Path (Yin Yang, Path & Shading Arrows) (with AnalyticalNinja) by 99%Sneaky (on 4. May 2025, 21:36) | 25 | 93 % |
| Going Dotty And Loopy by ralphwaldo1 (on 27. May 2025, 00:53) | 15 | 90 % |
| Iterations (Pentopia Yajilin Construction) by sfushidahardy (on 28. June 2025, 08:09) | 52 | 100 % |
| Reciproci-Pea by vitaminz (on 11. July 2025, 15:43) | 19 | 95 % |
| Anti-Arrow I by Andrewsarchus (on 5. August 2025, 04:43) | 26 | 95 % |
