list of fifth problems
| ID | NAME | CODE | USERS | ACC % |
|---|---|---|---|---|
| 12205 | Minimum Bounding Rectangle | HS12MBR | 75 | 58.58 |
| 12206 | Hidden Password | HS12HDPW | 38 | 43.68 |
| 12241 | Classification from Erdős and Selfridge | HS12PRIM | 2 | 40.00 |
| 12522 | Hopping bunny | HS12HOPP | 1 | 100.00 |
| 12536 | Anti Ulam Spirals | HS12SPRL | 28 | 59.18 |
| 12538 | O-Rubiks Cube | HS12CUBE | 6 | 50.00 |
| 12604 | O-Chess | HS12CHES | 1 | 16.67 |
| 12759 | Bacillus Perpendicularis | HS12BAPE | 0 | 0.00 |
| 12854 | O-Diagonal sudoku | HS12DISU | 0 | 0.00 |
| 12918 | O-Factorial | HS12FACT | 12 | 38.89 |
| 12976 | Rectangles Packing | HS12RTP | 4 | 33.33 |
| 13525 | Equalities | HS12EQ | 3 | 68.97 |
| 13751 | Cherries Sharing | HS12CHSH | 1 | 25.00 |
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