Connect the Numbers

The "Pair Matching" Puzzle (Similar to *Numberlink* or *Flow Free*)
In this version, the game tests a player's spatial awareness, planning, and logic.

**The Objective:**
The player is presented with a grid (e.g., 5×5, 8×8, or larger). Scattered across this grid are pairs of identical numbers (two 1s, two 2s, two 3s, etc.). The goal is to draw a continuous line connecting each matching pair of numbers without crossing any other lines.

**Core Rules:**
* **Match Pairs:** You must draw a path connecting the number 1 to the other number 1, the 2 to the 2, and so on.
* **No Overlapping:** Lines cannot cross each other, branch off, or share the same grid square.
* **Orthogonal Movement:** Lines can only be drawn horizontally and vertically (up, down, left, right). Diagonals are generally not allowed.
* **Fill the Grid (Optional but common):** In many variations, a perfect solution requires that every single empty square on the grid is filled by a line.

**Gameplay Dynamics:**
While early levels on a small grid are incredibly simple, the game quickly becomes a brain-teaser. Players must think several steps ahead to avoid "trapping" a number or cutting off a path. Often, the most obvious path between two numbers is the wrong one, as it will block another pair from connecting.