(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 | |
|---|---|---|---|
 | Tenban by chrisjnap (on 14. September 2025, 17:51) | 43 |  97 % |
| The Door around the Corner by XeonRisq (on 16. July 2023, 20:00) | 125 | 98 % |
| Noch ein 3D Rundweg by Calavera (on 31. December 2009, 05:49) | 63 | 98 % |
| Schach - Lügendetektor Logical by DocLogic (on 30. April 2020, 22:24) | 21 | 93 % |
| Parity Clockwork by Playmaker6174 (on 20. January 2022, 20:24) | 49 | 96 % |
| Belegtes Brot by ICHTUES (on 5. February 2023, 06:00) | 22 | 92 % |
| Golden Cages by Prof.Dori (on 4. May 2024, 21:12) | 31 | 91 % |
| Pacify 2: Surrounded by SamuPiano (on 6. May 2025, 15:44) | 24 | 95 % |
| Focal Points by TrivialHomology (on 26. November 2025, 16:00) | 30 | 91 % |
| DoppLKänger by ChinStrap (on 2. December 2025, 18:59) | 50 | 97 % |
| Center of Attention (Qodec's Tribute Puzzle) by Playmaker6174 (on 4. November 2022, 09:42) | 77 | 97 % |
| Thermoregulators by SSG (on 4. April 2025, 05:52) | 91 | 95 % |
| Krypto-X-Summen mit Zerrspiegeln by ibag (on 26. June 2019, 00:00) | 51 | 98 % |
| Peas Offering by Andrewsarchus (on 6. November 2025, 17:27) | 54 | 97 % |
| Sudoku Variants Series (375) - Odd-Even Thermometers by Richard (on 13. July 2022, 02:00) | 115 | 96 % |
| U-Bahn mit gemischten Hinweisen (Teil 1) by Zzzyxas (on 28. December 2019, 13:32) | 51 | 99 % |
| Path with opposite crosses (novel puzzle type) by SebastianSimon (on 23. December 2020, 14:58) | 24 | 96 % |
| Galaga by tenaliraman (on 16. September 2022, 10:35) | 58 | 95 % |
| Double Dragon (ft. Piatato) by Nordy (on 3. December 2022, 08:00) | 51 | 97 % |
| Hybrid Star Battle Series (014) - Double Back by BenceJoful (on 13. April 2023, 16:17) | 31 | 94 % |
