These four research tasks obscure the challenges required to complete them - making their requirements more difficult than usual.
You’ll then encounter a Pokémon as a reward, which as per other research tasks in Pokémon Go, is also a mystery from the outset.
This page explains all four Spooky Cipher research tasks and their respective encounters.
Spooky Cipher research tasks, reward encounters
There are four Spooky Cipher research tasks to discover. While most letters have been obscured, you can work out the requirement by matching the length and what few letters are visible with the following list:
- Evolve a Nincada - Shedinja encounter
- Make 3 Great Curveball Throws in a row - Sableye encounter
- Transfer 5 Pokémon - Shuppet encounter
- Use 5 Berries to help catch Pokémon - Duskull encounter
As shown, all four Spooky Cipher research tasks reward you with an Ghost-type Pokémon encounter.
These are the only way to catch these Pokemon during the Go Tour Hoenn event weekend — though since they are not subject to any particular Collection Challenge requirements, consider them an optional extra as you play.