| 300845 | CF162A. Pentagonal numbers | 0 | 0 | 0.000% |
| 300846 | CF162B. Binary notation | 0 | 0 | 0.000% |
| 300847 | CF162C. Prime factorization | 0 | 0 | 0.000% |
| 300848 | CF162D. Remove digits | 0 | 0 | 0.000% |
| 300849 | CF162E. HQ9+ | 0 | 0 | 0.000% |
| 300850 | CF162F. Factorial zeros | 0 | 0 | 0.000% |
| 300851 | CF162G. Non-decimal sum | 0 | 0 | 0.000% |
| 300852 | CF162H. Alternating case | 0 | 0 | 0.000% |
| 300853 | CF162I. Truncatable primes | 0 | 0 | 0.000% |
| 300854 | CF162J. Brackets | 0 | 0 | 0.000% |
| 300890 | CF170A. Placing Rectangles | 0 | 0 | 0.000% |
| 304875 | CF926A. 2-3-numbers | 0 | 0 | 0.000% |
| 304876 | CF926B. Add Points | 0 | 0 | 0.000% |
| 304877 | CF926C. Is This a Zebra? | 0 | 0 | 0.000% |
| 304878 | CF926D. Choose Place | 0 | 0 | 0.000% |
| 304879 | CF926E. Merge Equal Elements | 0 | 0 | 0.000% |
| 304880 | CF926F. Mobile Communications | 0 | 0 | 0.000% |
| 304881 | CF926G. Large Bouquets | 0 | 0 | 0.000% |
| 304882 | CF926H. Endless Roses Most Beautiful | 0 | 0 | 0.000% |
| 304883 | CF926I. A Vital Problem | 0 | 0 | 0.000% |
| 304884 | CF926J. Segments | 0 | 0 | 0.000% |
| 304885 | CF927A. BuberPool Taxi Optimization | 0 | 0 | 0.000% |
| 305008 | CF953A. 2-3-numbers | 0 | 0 | 0.000% |
| 305009 | CF953B. Add Points | 0 | 0 | 0.000% |
| 305010 | CF953C. Is This a Zebra? | 0 | 0 | 0.000% |
| 305011 | CF953D. Choose Place | 0 | 0 | 0.000% |
| 305012 | CF953E. Merge Equal Elements | 0 | 0 | 0.000% |
| 305013 | CF953F. Mobile Communications | 0 | 0 | 0.000% |
| 305014 | CF953G. Large Bouquets | 0 | 0 | 0.000% |
| 305015 | CF953H. Endless Roses Most Beautiful | 0 | 0 | 0.000% |
| 305016 | CF953I. A Vital Problem | 0 | 0 | 0.000% |
| 305017 | CF953J. Segments | 0 | 0 | 0.000% |