diff --git a/AdventOfCode/Problems/AOC2025/Day8/Playground.cs b/AdventOfCode/Problems/AOC2025/Day8/Playground.cs
index 2cd0246..2536c55 100644
--- a/AdventOfCode/Problems/AOC2025/Day8/Playground.cs
+++ b/AdventOfCode/Problems/AOC2025/Day8/Playground.cs
@@ -13,8 +13,8 @@ internal class Playground : Problem<long, long>
 
 	public override void CalculatePart1()
 	{
-		var boxes = _boxPositions.Select((p, i) => new JunctionBox(i, p, []));
-		var closest = GetClosestPairs(_boxPositions, 10);
+		var boxes = _boxPositions.Select((p, i) => new JunctionBox(i, p, [])).ToArray();
+		var closest = GetClosestPairs(_boxPositions, 1000);
 		foreach (var (a, b)in closest)
 		{
 			var boxA = boxes.First(box => box.Pos == a);
@@ -22,12 +22,31 @@ internal class Playground : Problem<long, long>
 			boxA.Connections.Add(boxB.Id);
 			boxB.Connections.Add(boxA.Id);
 		}
-
+		var networks = TraceNetworks(boxes);
+		Part1 = networks.Select(n => (long)n.Count).OrderDescending().Take(3).Aggregate((a, b) => a * b);
 	}
 
-	private static long[] TraceNetworks(JunctionBox[] junctionBoxes)
+	private static List<HashSet<int>> TraceNetworks(JunctionBox[] junctionBoxes)
 	{
-		return [];
+		var networks = new List<HashSet<int>>();
+		foreach (var box in junctionBoxes)
+		{
+			if (networks.Any(n => n.Contains(box.Id)))
+				continue;
+			var net = new HashSet<int>() { box.Id };
+			TraceJunction(box, junctionBoxes, net);
+			networks.Add(net);
+		}
+		return networks;//.Where(n => n.Count > 0).ToList();
+	}
+
+	private static void TraceJunction(JunctionBox box, JunctionBox[] boxes, HashSet<int> result)
+	{
+		foreach (var connection in box.Connections)
+		{
+			if (result.Add(connection))
+				TraceJunction(boxes[connection], boxes, result);
+		}
 	}
 
 	private static List<(Vec3<int> a , Vec3<int> b)> GetClosestPairs(Vec3<int>[] boxes, int count = 10)
@@ -55,11 +74,11 @@ internal class Playground : Problem<long, long>
 
 	public override void LoadInput()
 	{
-		_boxPositions = ReadInputLines("sample.txt")
+		_boxPositions = ReadInputLines("input.txt")
 			.Select(l => l.Split(',').Select(int.Parse))
 			.Select(c => new Vec3<int>(c.First(), c.Skip(1).First(), c.Last()))
 			.ToArray();
 	}
 
-	private record JunctionBox(int Id, Vec3<int> Pos, HashSet<int> Connections);
+	private record class JunctionBox(int Id, Vec3<int> Pos, HashSet<int> Connections);
 }