Merge/swipe gameplay concept
In a fishing merge puzzle such as 2048 Fishing, a swipe shifts every movable tile in one direction. When two matching fish or items collide, they combine into a higher-value discovery. This creates a simple rule set with complex consequences because a single move affects every row or column.
The core challenge is not only finding a merge. It is making a merge without scattering the board, trapping key tiles, or filling the grid with isolated values.