diff --git a/56_Life_for_Two/csharp/Board.cs b/56_Life_for_Two/csharp/Board.cs
index 4618f881..1469749b 100644
--- a/56_Life_for_Two/csharp/Board.cs
+++ b/56_Life_for_Two/csharp/Board.cs
@@ -2,6 +2,10 @@ namespace LifeforTwo;
 
 internal class Board
 {
+    private const int Player1Piece = 100;
+    private const int Player2Piece = 1000;
+    private const int Player1Neighbour = 1;
+    private const int Player2Neighbour = 10;
     private readonly int[,] _cells = new int[7,7];
 
     public int this[Coordinates coordinates]
@@ -15,4 +19,23 @@ internal class Board
         get => _cells[x, y];
         set => _cells[x, y] = value;
     }
+
+    public void CalculateNeighbours()
+    {
+        for (var x = 1; x <= 5; x++)
+        {
+            for (var y = 1; y <= 5; y++)
+            {
+                var coordinates = new Coordinates(x, y);
+                if (this[coordinates] >= Player1Piece)
+                {
+                    int _playerPiece = this[coordinates] > Player2Piece ? Player2Neighbour : Player1Neighbour;
+                    foreach (var neighbour in coordinates.GetNeighbors())
+                    {
+                        this[neighbour] += _playerPiece;
+                    }
+                }
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/56_Life_for_Two/csharp/Program.cs b/56_Life_for_Two/csharp/Program.cs
index 6208be04..73d3aa85 100644
--- a/56_Life_for_Two/csharp/Program.cs
+++ b/56_Life_for_Two/csharp/Program.cs
@@ -11,25 +11,6 @@ var _willLive = new[] { 3, 102, 103, 120, 130, 121, 112, 111, 12, 21, 30, 1020,
 var _coordinates = new Coordinates[3];
 int _player1Count, _player2Count;
 
-void CalculateNeighbors()
-{
-    for (var x = 1; x <= 5; x++)
-    {
-        for (var y = 1; y <= 5; y++)
-        {
-            var coordinates = new Coordinates(x, y);
-            if (_board[coordinates] > 99)
-            {
-                int B = _board[coordinates] > 999 ? 10 : 1;
-                foreach (var neighbor in coordinates.GetNeighbors())
-                {
-                    _board[neighbor] += B;
-                }
-            }
-        }
-    }
-}
-
 void CalculateAndDisplayNext()
 {
     _player1Count = _player2Count = 0;
@@ -96,7 +77,7 @@ CalculateAndDisplayNext();
 while (true)
 {
     io.WriteLine();
-    CalculateNeighbors();
+    _board.CalculateNeighbours();
     CalculateAndDisplayNext();
 
     if (_player1Count == 0 || _player2Count == 0) { break; }