diff --git a/pom.xml b/pom.xml
index 7165069..d459e53 100644
--- a/pom.xml
+++ b/pom.xml
@@ -8,8 +8,6 @@
     <artifactId>sudoku_team_deepthought</artifactId>
     <version>0.2-SNAPSHOT</version>
 
-    <packaging>jar</packaging>
-
     <properties>
         <maven.compiler.source>8</maven.compiler.source>
         <maven.compiler.target>8</maven.compiler.target>
diff --git a/src/main/java/src/Model.java b/src/main/java/src/Model.java
index e87779c..8dc95ea 100644
--- a/src/main/java/src/Model.java
+++ b/src/main/java/src/Model.java
@@ -1,6 +1,9 @@
 package src;
 
-import javax.swing.*;
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
+
+import java.util.Iterator;
 import java.util.List;
 
 public class Model {
@@ -9,6 +12,7 @@ public class Model {
 
     public int[][] model;
     public int difficulty;
+    private GameField gameField;
 
     public int getDifficulty() {
         return difficulty;
@@ -19,6 +23,7 @@ public class Model {
     }
 
     public Model(GameField gameField) {
+        this.gameField = gameField;
 
         model = new int[SIZE][];
 
@@ -33,6 +38,8 @@ public class Model {
         }
     }
 
+
+
     public void setField(int x, int y, int value) {
         model[y][x] = value;
     }
@@ -112,4 +119,26 @@ public class Model {
 
         return sb.toString();
     }
+
+    public JSONObject modelToJson() {
+
+        JSONArray values = new JSONArray();
+
+        for (int i = 0; i < 9; i++) {
+            for (int j = 0; j < 9; j++) {
+
+                JSONObject jsonObject = new JSONObject();
+                jsonObject.put("x", j);
+                jsonObject.put("y", i);
+                jsonObject.put("value", getField(i, j));
+                values.add(jsonObject);
+
+            }
+        }
+
+        JSONObject game = new JSONObject();
+        game.put("values", values);
+
+        return game;
+    }
 }
diff --git a/src/test/java/ModelTest.java b/src/test/java/ModelTest.java
index 1068b40..87df513 100644
--- a/src/test/java/ModelTest.java
+++ b/src/test/java/ModelTest.java
@@ -1,8 +1,12 @@
+import org.json.simple.JSONArray;
+import org.json.simple.JSONObject;
 import org.junit.jupiter.api.Test;
 import src.GameField;
 import src.MainFrame;
 import src.Model;
 
+import java.util.Iterator;
+
 import static org.junit.jupiter.api.Assertions.*;
 
 public class ModelTest extends MainFrame {
@@ -202,4 +206,30 @@ public class ModelTest extends MainFrame {
     @Test
     public void test_showAllGames() {
     }
+
+    @Test
+    public void test_modelToJson() {
+
+        //mock
+        GameField gameField = new GameField(360);
+        for (int i = 0, k = 13; i < 9; i++) {
+            for (int j = 0, l = 17; j < 9; j++) {
+                gameField.setValue(i, j, (i*l+j*k)%9);
+            }
+        }
+        Model model = new Model(gameField);
+
+        //test
+        JSONObject jsonObject = model.modelToJson();
+        JSONArray values = (JSONArray) jsonObject.get("values");
+        Iterator iterator = values.iterator();
+        while (iterator.hasNext()) {
+            JSONObject next = (JSONObject) iterator.next();
+            int x = (int) next.get("x");
+            int y = (int) next.get("y");
+            int value = (int) next.get("value");
+            int r = (x*13+y*17)%9;
+            assertEquals(r, value, "x:"+x+", y:"+y+"="+value+"-->"+r+"?");
+        }
+    }
 }
\ No newline at end of file