| 7841 | Problem E: Relatives | 2/2 | |
| 7842 | Problem A: Trains | 1/1 | |
| 7843 | Problem B: Tic Tac Toe | 1/1 | |
| 7844 | Problem C: Square | 1/1 | |
| 7845 | Temple of Dune | 1/1 | |
| 7846 | Ferry Loading II | 1/1 | |
| 7847 | Basic | 1/1 | |
| 7848 | Dumb Bones | 1/1 | |
| 7849 | Combination Lock | 1/1 | |
| 7850 | Dead Fraction | 1/1 | |
| 7851 | Biometrics | 1/1 | |
| 7852 | Perfect Pth Powers | 1/1 | |
| 7853 | Expanding Rods | 1/1 | |
| 7854 | Cat | 0/1 | |
| 7855 | Evil Straw Warts Live | 1/1 | |
| 7856 | Mint | 1/1 | |
| 7857 | Ants | 1/1 | |
| 7858 | Practice | 1/1 | |
| 7859 | Test | 1/1 | |
| 7860 | Great Circle | 1/1 | |
| 7861 | Up the Ante | 1/1 | |
| 7862 | Beat the Spread! | 1/1 | |
| 7863 | Traditional BINGO | 1/1 | |
| 7864 | Bungee Jumping | 1/1 | |
| 7865 | So you want to be a 2n-aire | 1/1 | |
| 7866 | Structural Equivalence | 1/1 | |
| 7867 | Factstone Benchmark | 1/1 | |
| 7868 | Tri Tiling | 1/1 | |
| 7869 | Educational journey | 2/2 | |
| 7870 | Go | 1/1 | |
| 7871 | Medals | 1/1 | |
| 7872 | Flipping colors | 1/1 | |
| 7873 | Point of view in Flatland | 1/1 | |
| 7874 | Moonshine | 0/1 | |
| 7875 | Cousins | 1/1 | |
| 7876 | Tautology | 1/1 | |
| 7877 | Humidex | 1/1 | |
| 7878 | Tour de France | 1/1 | |
| 7879 | Texas Trip | 1/1 | |
| 7880 | Pseudoprime numbers | 1/1 | |
| 7881 | Carpool | 1/1 | |
| 7882 | Gangs | 1/1 | |
| 7883 | Smeech | 1/1 | |
| 7884 | Tournament | 0/1 | |
| 7885 | Wedding | 0/2 | |
| 7886 | Trainsorting | 1/1 | |
| 7887 | Hot Spot | 0/1 | |
| 7888 | Balance | 1/1 | |
| 7889 | Laurel Creek | 0/1 | |
| 7890 | Rocket Stages | 1/1 | |