started with the TicTacToe_MinMax Project. Finished the rendering of the game.

TODO: Make a playable version and add MinMax

CodingChallanges/src/geometry/PentagonalNumber.java

@@ -0,0 +1,19 @@
+package geometry;
+
+public class PentagonalNumber {
+
+    //Edabit-Challange
+    //https://edabit.com/challenge/H6eTNH6NW36MHqkjb
+
+    public static int pentagonal(int num) {
+        int outerRings = 0;
+        for(int i = num-1; i > 0; i--){
+            outerRings += i * 5;
+        }
+        return outerRings + 1;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(pentagonal(10));
+    }
+}

CodingChallanges/src/geometry/makeGrid.java

@@ -0,0 +1,26 @@
+package geometry;
+
+import java.util.Arrays;
+
+public class makeGrid {
+
+    //Edabit-Challange
+    //https://edabit.com/challenge/7Tb7qMDQHtz3xpydd
+
+    public static int[][] squarePatch( int n ){
+        int[][] array = new int[n][n];
+        int i = 0;
+        while (i < n){
+            for (int j = 0; j < n; j++){
+                array[i][j] = n;
+            }
+            i++;
+        }
+        return array;
+    }
+
+    public static void main(String[] args) {
+        System.out.println(Arrays.toString(squarePatch(4)));
+    }
+
+}