
| The things you should know: 
 | 
| Serial, Title & HTML link | PDF File Link | Problemsetter | ||
| (A) Trick or Treat | PDF for A | Javier Gómez | ||
| (B) Working at the Restaurant | PDF for B | Abel Molina | ||
| (C) Lights | PDF for C | David García Soriano | ||
| (D) Darts | PDF for D | Luis Hernández Corbato | ||
| (E) Genetics | PDF for E | Luis Hernández Corbato | ||
| (F) Haunted Graveyard | PDF for F | Enrique Martín | ||
| (G) Slalom | PDF for G | Manuel Abellanas | ||
| (H) Routing | PDF for H | David García Soriano | ||
| (I) Happy Telephones | PDF for I | Manuel Freire | ||
| (J) Stammering Aliens | PDF for J | David García Soriano | ||
| (K) Lights (extreme) | PDF for K | David García Soriano |