The Guardian presents a 3D puzzle featuring a fish swimming inside a tank measuring two metres high, one metre across, and one metre deep. An image in the posts shows one possible route the fish takes through the tank, and readers are challenged to continue the path.
In a separate follow-up, the outlet revisits the same underwater scenario and provides the solution to the puzzle. The earlier post focuses on asking readers to “think in 3D” and work out how the path proceeds from the starting view. The later post shifts to confirming the correct continuation, framing the exercise as part of a daily set of puzzles.
Across the two pieces provided, both outlets agree on the core setup: the tank’s dimensions, the presence of a depicted swim path, and the goal of determining how the route continues. The difference is mainly timing and emphasis—one asks readers to solve it, while the other shows the solution.
