Richard
Richard is one of the most productive authors in the puzzle portal. His specialty are Sudoku variants and ABCtjes, but he also likes using Pentominoes in his puzzles. Richards puzzles are very popular: almost all of his puzzles are rated above 80%, and they cover the whole difficulty range. Enjoy Richard's puzzle creations!
| Description | solved | Rating | |
|---|---|---|---|
 | Pento Parade Leftover (2) - Pentomino Yajilin by Richard (on 6. October 2014, 12:00) | 95 |  94 % |
| Pento Parade Leftover (1) - Pentopia by Richard (on 5. October 2014, 12:00) | 111 | 93 % |
| Sum Pentominos by Richard (on 3. October 2014, 12:00) | 101 |  85 % |
| Sudoku Variants Series (044) - Number 5 is alive by Richard (on 30. September 2014, 00:00) | 175 | 92 % |
| Toroidal Sudoku (VI) by Richard (on 26. September 2014, 12:00) | 64 |  90 % |
| Sudoku Variants Series (043) - Sudoku Low by Richard (on 23. September 2014, 00:00) | 421 | 82 % |
| Spiral City Construction (III) by Richard (on 19. September 2014, 12:00) | 74 | 96 % |
| Sudoku Variants Series (042) - Mathdoku by Richard (on 16. September 2014, 00:00) | 181 | 93 % |
| Pento Nurikabe by Richard (on 12. September 2014, 12:00) | 75 | 84 % |
| Sudoku Variants Series (041) - Thermometer by Richard (on 9. September 2014, 00:00) | 191 | 89 % |
| Pentapa by Richard (on 5. September 2014, 12:00) | 105 | 91 % |
| Sudoku Variants Series (040) - Mathrax Sudoku by Richard (on 2. September 2014, 00:00) | 224 | 90 % |
| Twin Killer Sudoku VI by Richard (on 29. August 2014, 12:00) | 81 |  95 % |
| Sudoku Variants Series (039) - Fortress by Richard (on 26. August 2014, 00:00) | 209 | 88 % |
| Tapa by Richard (on 22. August 2014, 12:00) | 106 | 82 % |
| Sudoku Variants Series (038) - Group Sums by Richard (on 19. August 2014, 00:00) | 174 | 95 % |
| Magnets by Richard (on 15. August 2014, 12:00) | 88 | 88 % |
| Sudoku Variants Series (037) - X-Sums by Richard (on 12. August 2014, 00:00) | 490 | 91 % |
| Mathrax (2) by Richard (on 8. August 2014, 12:00) | 96 | 84 % |
| Sudoku Variants Series (036) - Non Consecutive by Richard (on 5. August 2014, 00:00) | 204 | 87 % |
