
| The things you should know: 
 | 
| Title (link to the PDF File) | Problem Setters (Checkers) | |
|---|---|---|
| Problem A. Verbal arithmetic | Pedro Pablo Gómez Martín (Marco Antonio Gómez Martín) | |
| Problem B. Pixel Art | Antonio Sánchez Ruiz-Granados (Alberto Verdejo, Marco Antonio Gómez Martín y Pedro Pablo Gómez Martín) | |
| Problem C. The music teacher | Marco Antonio Gómez Martín (Enrique Martín Martín y Pedro Pablo Gómez Martín) | |
| Problem D. Secret Santa | Pedro Pablo Gómez Martín | |
| Problem E. The entertainment of machines | Marco Antonio Gómez Martín (Alberto Verdejo y Pedro Pablo Gómez Martín) | |
| Problem F. Children to the top | Clara Segura y Alberto Verdejo | |
| Problem G. Chocolate with almonds | Alberto Verdejo (Marco Antonio Gómez Martín) | |
| Problem H. Orchestral scores | Marco Antonio Gómez Martín | |
| Problem I. Is it multiple of 3? | Isabel Pita y Pedro Pablo Gómez Martín | |
| Problem J. Smarter than hunger | Alberto Verdejo (Marco Antonio Gómez Martín) | |
| Problem K. The countess’ pearls | Isabel Pita | |
| Problem L. Sleeping in hostels | Alberto Verdejo y Pedro Pablo Gómez Martín | 
