merge changes

PuzzlePlayer/Board.cs

@@ -46,6 +46,8 @@ namespace PuzzlePlayer_Namespace
         public int[,] lastGeneratedBoard;
         public int[,] solution;
 
+        protected static readonly Random random = new();
+
         // static meathode for filling a int[,] with -1
         public static int[,] GetClearBoard(int boardSizeX, int boardSizeY)
         {
@@ -106,9 +108,9 @@ namespace PuzzlePlayer_Namespace
             int col;
             bool hintPossible = false;
 
-            for (int i = 0; i < boardLength; i++)
+            for (int i = 0; i < boardState.GetLength(0); i++)
             {
-                for (int j = 0; j < boardLength; j++)
+                for (int j = 0; j < boardState.GetLength(1); j++)
                 {
                     if (boardState[i, j] == emptySpace)
                     {
@@ -119,8 +121,8 @@ namespace PuzzlePlayer_Namespace
 
             while (hintPossible)
             {
-                row = RandomNumber(boardLength) - 1;
-                col = RandomNumber(boardLength) - 1;
+                row = RandomNumber(boardState.GetLength(0) - 1);
+                col = RandomNumber(boardState.GetLength(1) - 1);
 
                 if (boardState[row, col] == emptySpace)
                 {

PuzzlePlayer/PuzzleForm.cs

@@ -166,7 +166,7 @@ namespace PuzzlePlayer_Namespace
             hintbutton.Text = "Hint";
             hintbutton.MouseClick += (object sender, MouseEventArgs mea) =>
             {
-                MessageBox.Show("Hint: geef op");
+                Board.Hint();
                 Draw();
             };
             CreateButton(solvebutton);

PuzzlePlayer/Sudoku.cs

@@ -14,7 +14,6 @@ namespace PuzzlePlayer_Namespace
     {
         private readonly int boardLength;
         private readonly int rootBoardLength;
-        private static readonly Random random = new();
         private readonly double removeDensity = 0.5;
         public Sudoku(int boardSize = 4)
         {