diff --git a/src/main/java/fr/iut_fbleau/but3/dev6_2/EightQueensSolver.java b/src/main/java/fr/iut_fbleau/but3/dev6_2/EightQueensSolver.java
index 70f7f56..578c438 100644
--- a/src/main/java/fr/iut_fbleau/but3/dev6_2/EightQueensSolver.java
+++ b/src/main/java/fr/iut_fbleau/but3/dev6_2/EightQueensSolver.java
@@ -9,28 +9,28 @@ public class EightQueensSolver {
 
     
 
-    public void main(String[] args){
+    public static void main(String[] args){
+        EightQueensSolver solver = new EightQueensSolver();
         
-        // Début de la résolution par méthode simplifiée
         long startTimeSimSim = System.currentTimeMillis();
         System.out.println("Début SimSim");
-        System.out.println(SolverSim(0));
+        System.out.println(solver.SolverSim(0));
         System.out.println("Fin SimSim");
         long endTimeSimSim = System.currentTimeMillis();
         System.out.println("Temps d'exécution SimSim: " + (endTimeSimSim - startTimeSimSim) + " ms");
-        chessboard.printChessboard();
+        solver.chessboard.printChessboard();
 
 
-        chessboard = new Chessboard(); // Réinitialisation du plateau
+        solver.chessboard = new Chessboard(); 
         
-        // Début de la résolution par méthode classique
+
         long startTimeVictor = System.currentTimeMillis();
         System.out.println("Début Victor");
-        System.out.println(Solver(0));
+        System.out.println(solver.Solver(0));
         System.out.println("Fin Victor");
         long endTimeVictor = System.currentTimeMillis();
         System.out.println("Temps d'exécution Victor: " + (endTimeVictor - startTimeVictor) + " ms");
-        chessboard.printChessboard();
+        solver.chessboard.printChessboard();
         
     }
 
diff --git a/src/test/java/fr/iut_fbleau/but3/dev6_2/ChessboardTest.java b/src/test/java/fr/iut_fbleau/but3/dev6_2/ChessboardTest.java
index d1c8384..5caa59c 100644
--- a/src/test/java/fr/iut_fbleau/but3/dev6_2/ChessboardTest.java
+++ b/src/test/java/fr/iut_fbleau/but3/dev6_2/ChessboardTest.java
@@ -1,6 +1,8 @@
 package fr.iut_fbleau.but3.dev6_2;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -9,15 +11,84 @@ class ChessboardTest {
     private Chessboard chessboard;
 
     @BeforeEach
-    public void beforeEach(){
+    public void beforeEach() {
         this.chessboard = new Chessboard();
     }
 
     @Test
-    void placeAQueen(){
-        this.chessboard.placeQueen(0,0);
-        assertEquals(1, this.chessboard.getNumberOfQueen());
+    void testReplaceQueen() {
+        //test place une reine
+        this.chessboard.placeQueen(0, 0);
+        assertEquals(1, this.chessboard.getNumberOfQueen(), "Il devrait y avoir 1 reine sur l'échiquier.");
+        assertFalse(this.chessboard.VerifAccessible(0, 0), "La position (0,0) ne devrait pas être accessible.");
+
+        // Déplacer la reine
+        this.chessboard.removeQueen(0, 0);
+        this.chessboard.placeQueen(5, 3);
+        assertEquals(1, this.chessboard.getNumberOfQueen(), "Il devrait y avoir 1 reine sur l'échiquier.");
+        assertTrue(this.chessboard.VerifAccessible(0, 0), "La position (0,0) devrait être accessible.");
+        assertFalse(this.chessboard.VerifAccessible(5, 3), "La position (1,1) ne devrait pas être accessible.");
     }
 
+    @Test
+    void placeMultipleQueens() {
+        this.chessboard.placeQueen(0, 0);
+        this.chessboard.placeQueen(1, 2);
+        this.chessboard.placeQueen(2, 4);
+        assertEquals(3, this.chessboard.getNumberOfQueen());
+    }
+
+    @Test
+    void removeQueen() {
+        this.chessboard.placeQueen(0, 0);
+        this.chessboard.removeQueen(0, 0);
+        assertEquals(0, this.chessboard.getNumberOfQueen());
+    }
+
+    @Test
+    void verifAccessible() {
+        int middle = Chessboard.SIZE / 2;
+        this.chessboard.placeQueen(middle, middle);
     
-}
\ No newline at end of file
+        for (int i = 0; i < Chessboard.SIZE; i++) {
+            assertFalse(this.chessboard.VerifAccessible(i, i));
+            assertFalse(this.chessboard.VerifAccessible(middle, i));
+            assertFalse(this.chessboard.VerifAccessible(i, middle));
+            if (isValidPosition(middle + i, middle + i)) {
+                assertFalse(this.chessboard.VerifAccessible(middle + i, middle + i));
+            }
+            if (isValidPosition(middle - i, middle - i)) {
+                assertFalse(this.chessboard.VerifAccessible(middle - i, middle - i));
+            }
+            if (isValidPosition(middle + i, middle - i)) {
+                assertFalse(this.chessboard.VerifAccessible(middle + i, middle - i));
+            }
+            if (isValidPosition(middle - i, middle + i)) {
+                assertFalse(this.chessboard.VerifAccessible(middle - i, middle + i));
+            }
+        }
+    }
+
+    private boolean isValidPosition(int x, int y) {
+        return x >= 0 && x < Chessboard.SIZE && y >= 0 && y < Chessboard.SIZE;
+    }
+    
+    @Test
+    void testWinningSolution() {
+        // Placer les reines aux positions données
+        int[][] positions = {
+            {0, 0}, {1, 4}, {2, 7}, {3, 5}, 
+            {4, 2}, {5, 6}, {6, 1}, {7, 3}
+        };
+        
+        for (int[] pos : positions) {
+            assertTrue(this.chessboard.VerifAccessible(pos[0], pos[1]), 
+            "La position (" + pos[0] + "," + pos[1] + ") devrait être accessible.");
+            this.chessboard.placeQueen(pos[0], pos[1]);
+            assertFalse(this.chessboard.VerifAccessible(pos[0], pos[1]), 
+            "La position (" + pos[0] + "," + pos[1] + ") ne devrait plus être accessible.");
+        }
+    }
+
+
+}
diff --git a/src/test/java/fr/iut_fbleau/but3/dev6_2/steps/EightQueensSolverStepsTest.java b/src/test/java/fr/iut_fbleau/but3/dev6_2/steps/EightQueensSolverStepsTest.java
new file mode 100644
index 0000000..f790141
--- /dev/null
+++ b/src/test/java/fr/iut_fbleau/but3/dev6_2/steps/EightQueensSolverStepsTest.java
@@ -0,0 +1,24 @@
+package fr.iut_fbleau.but3.dev6_2.steps;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import fr.iut_fbleau.but3.dev6_2.Chessboard;
+
+class ChessboardTest {
+
+    private Chessboard chessboard;
+
+    @BeforeEach
+    public void beforeEach(){
+        this.chessboard = new Chessboard();
+    }
+
+    @Test
+    void placeAQueen(){
+        this.chessboard.placeQueen(0,0);
+        assertEquals(1, this.chessboard.getNumberOfQueen());
+    }
+
+}
\ No newline at end of file