diff --git a/src/Grid.java b/src/Grid.java
new file mode 100644
index 0000000..a0cff7e
--- /dev/null
+++ b/src/Grid.java
@@ -0,0 +1,43 @@
+import java.util.Arrays;
+
+public class Grid {   
+    private Square[][] grid;
+
+    public Grid(int taille) {
+        this.grid = new Square[taille][taille];
+        for (int i = 0; i < taille; i++) {
+            for (int j = 0; j < taille; j++) {
+                this.grid[i][j] = new Square(i, j);
+            }
+        }
+    }
+
+    public void setWall(int x, int y) throws ArrayIndexOutOfBoundsException {
+        this.grid[x][y].setWall();
+    }
+
+    public void setExit(int x, int y) throws ArrayIndexOutOfBoundsException {
+        for (Square[] line : this.grid) {
+            for (Square square : line) {
+                if (square.isExit()) square.setEmpty();
+            }
+        }
+        this.grid[x][y].setExit();
+    }
+
+    public int getRows() {
+        return this.grid.length;
+    }
+
+    public int getColumns() {
+        return this.grid[0].length;
+    }
+
+    public boolean isWall(int x, int y) {
+        return this.grid[x][y].isWall();
+    }
+
+    public boolean isExit(int x, int y) {
+        return this.grid[x][y].isEmpty();
+    }
+}
\ No newline at end of file
diff --git a/src/GridController.java b/src/GridController.java
new file mode 100644
index 0000000..3e80b63
--- /dev/null
+++ b/src/GridController.java
@@ -0,0 +1,29 @@
+public class GridController {
+    private Grid model;
+    private GridView view;
+
+    public GridController(Grid model, GridView view) {
+        this.model = model;
+        this.view = view;
+    }
+
+    public void setGridExit(int x, int y) {
+        this.model.setExit(x, y);
+    }
+
+    public void setGridWall(int x, int y) {
+        this.model.setWall(x, y);
+    }
+
+    public boolean isGridWall(int x, int y) {
+        return this.model.isWall(x, y);
+    }
+
+    public boolean isGridExit(int x, int y) {
+        return this.model.isExit(x, y);
+    }
+
+    public void updateView() {
+        this.view.printGridInfo(this.model.getRows(), this.model.getColumns());
+    }
+}
diff --git a/src/GridView.java b/src/GridView.java
new file mode 100644
index 0000000..c199432
--- /dev/null
+++ b/src/GridView.java
@@ -0,0 +1,5 @@
+public class GridView {
+    public void printGridInfo(int rows, int columns) {
+        System.out.println("Grid size: " + rows + "x" + columns);
+    }
+}
diff --git a/src/Square.java b/src/Square.java
new file mode 100644
index 0000000..c998045
--- /dev/null
+++ b/src/Square.java
@@ -0,0 +1,42 @@
+public class Square {
+    private final int row;
+    private final int column;
+    private int type = 0;
+
+    public Square(int row, int column) {
+        this.row = row;
+        this.column = column;
+    }
+
+    public int getRow() {
+        return this.row;
+    }
+
+    public int getColumn() {
+        return this.column;
+    }
+
+    public boolean isWall() {
+        return this.type == 1;
+    }
+
+    public boolean isExit() {
+        return this.type == 2;
+    }
+
+    public boolean isEmpty() {
+        return this.type == 0;
+    }
+
+    public void setWall() {
+        this.type = 1;
+    }
+
+    public void setExit() {
+        this.type = 2;
+    }
+
+    public void setEmpty() {
+        this.type = 0;
+    }
+}