A blue Pokeball with white writing on the circumference reading "Silph Puzzlehunt". Various puzzle-related objects such as a calculator, a pencil, and a sheet of paper, are shown inside of the Pokeball.
The 2021 Silph Puzzle Hunt was the 4th puzzlehunt run by the Silph team. The story takes place in the Pokemon universe - the solver plays the role of a goon for an unnamed team in Round 1, going to various Puzzlestops on a map. As puzzles are solved at the Puzzlestops, new Puzzlestop locations are revealed, until finally the Round 1 Meta is unlocked. After solving the round 1 meta and remembering your task, solvers unlock the second round. Round 2 has a similar structure, but with the more specific task of interacting with Candela, Spark, and Blanche - the three team leaders in the popular mobile game Pokemon GO. Round 2 is comprised of 21 puzzles, which feed into 3 different meta puzzles, one for each team leader, and one final metameta puzzle.