blindrush: "Draw lines to move every circle.\n1. A circle can be moved horizontally or vertically, but cannot make a turn.\n2. Movement lines cannot cross or overlap each other. Lines can also not go through the start- or endpoint of other circles.\n3. Connected groups of thick lines (excluding the grid edges) are called a wall. Every wall is crossed by a line exactly once.\n4. Every movement line stops directly in front of a wall or the edge of the grid.\n5. A number indicates how many walls the circle must move through before stopping."
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