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About Impossible 13
Impossible 13 invites you to merge circles showing the same number. You group at least three circles of equal value. They merge into a single circle with a higher number. You keep joining numbers to reach thirteen. The goal stays clear and direct.
Gameplay moves at a steady pace. You tap a circle and drag it across the board. Each move follows the same rule. Three matching circles create a new one. You aim to stack higher numbers. Spaces fill up over time.
Each successful merge offers clear progress. Seeing circles jump one digit satisfies on each move. Quick sessions work for brief pauses. Longer runs invite deeper focus on puzzles. Simple rules and steady challenges hold attention.