Sudoku and variants
The portal contains almost all kinds of Sudoku variants: standard, killer and jigsaw, for example, but there is no limit to the creativity of the puzzle authors here. What about trying a 3D-Sudoku, Spiral Sudoku, or even a Sudoku Rallye (which contains other puzzle types, too). Enjoy browsing!
| Description | solved | Rating | |
|---|---|---|---|
 | Six thermos and a couple of digits by graggle (on 26. July 2025, 11:00) | 25 |  93 % |
| Autoglyphs 5 (German Whisper) by juddimal (on 26. July 2025, 07:00) | 66 | 93 % |
| Shuriken by Evan (on 26. July 2025, 06:19) | 53 |  93 % |
| Balloons on a Windy Day by Will Power (on 26. July 2025, 05:00) | 105 | 94 % |
| Skygangers by bodemeister (on 26. July 2025, 02:42) | 6 |  N/A |
| Segmented Thermo Loop by yttrio (on 26. July 2025, 02:02) | 60 | 97 % |
| Kropki Diagonals by Md88keys (on 26. July 2025, 01:58) | 147 | 95 % |
| Blue Sticks by antiknight (on 26. July 2025, 01:49) | 19 |  91 % |
| Krazy Kropki (UPDATE: featured on CTC) by Dave Brenn (on 26. July 2025, 00:55) | 16 |  N/A |
| Startled Fish by ebiggie (on 26. July 2025, 00:08) | 150 |  94 % |
| Thermodynamic Litany by Aeon (on 25. July 2025, 23:18) | 6 | N/A |
| Rube Goldburg Sudoku by The Bard (on 25. July 2025, 22:06) | 217 | 95 % |
| Matryoshka by timotab (on 25. July 2025, 21:05) | 23 | 86 % |
| A prime example of the loneliest number by TheGreatGoatsbie (on 25. July 2025, 19:34) | 2 | N/A |
| gw go brr by aqjhs (on 25. July 2025, 19:20) | 161 | 94 % |
| Counting through palindromes by DylanRay (on 25. July 2025, 18:29) | 15 | 77 % |
| Scattered Gems by Kaktuslav (on 25. July 2025, 18:00) | 6 |  N/A |
| Ring Ring by ThePedallingPianist (on 25. July 2025, 17:04) | 18 |  86 % |
| German Whisper go brrr (with Calvinball) by sujoyku (on 25. July 2025, 16:17) | 181 | 93 % |
| Another Box of Matches by MonsieurTRISTE (on 25. July 2025, 15:39) | 39 | 87 % |
