Guenter Neumann
| Challenge | Status | End | Votes | Entries | Players |
|---|---|---|---|---|---|
| Geese, Ducks or Swans | closed | 5 years, 6 months ago | 10600000 | 7456 | 7402 |
| Keeping It Abstract | closed | 3 years, 9 months ago | 11900000 | 26217 | 6501 |
| Numbers All Around Us | closed | 3 years, 5 months ago | 11600000 | 10360 | 5115 |
| Expressive Hands | closed | 3 years, 3 months ago | 5900000 | 13813 | 3558 |
| Shot From Afar | closed | 3 years, 1 month ago | 11500000 | 26396 | 6564 |
| Alone | closed | 2 years, 8 months ago | 13300000 | 30936 | 7714 |
| Harbors, Jetties and Piers | closed | 2 years, 6 months ago | 9200000 | 20265 | 5073 |
| Nighttime Magic | closed | 2 years, 5 months ago | 9800000 | 21898 | 5491 |
| Starts with C | closed | 2 years, 2 months ago | 9200000 | 21526 | 5480 |
| Free Style | closed | 2 years ago | 124000 | 1317 | 1267 |
| Warm & Welcoming Colors | closed | 1 year, 9 months ago | 10900000 | 23763 | 5906 |
| No Odds Just Even Numbers | closed | 1 year, 6 months ago | 8700000 | 17823 | 4417 |
| Cool Tones | closed | 10 months, 3 weeks ago | 7177862 | 11323 | 2823 |
| Shot Against Black | closed | 8 months, 3 weeks ago | 6248505 | 10138 | 2570 |
| Rays Of light | closed | 6 months, 2 weeks ago | 7368915 | 12595 | 3114 |
| Sharp And Pointy | closed | 4 months, 2 weeks ago | 10454754 | 10142 | 3330 |