diff --git a/app/src/main/java/chess/view/DDDrender/DDDView.java b/app/src/main/java/chess/view/DDDrender/DDDView.java
index 4352c00..6827a3a 100644
--- a/app/src/main/java/chess/view/DDDrender/DDDView.java
+++ b/app/src/main/java/chess/view/DDDrender/DDDView.java
@@ -7,6 +7,8 @@ import java.util.function.Consumer;
 
 import chess.controller.commands.*;
 import imgui.ImGui;
+import imgui.ImVec2;
+import imgui.flag.ImGuiCond;
 import imgui.flag.ImGuiWindowFlags;
 import org.joml.Vector2f;
 import org.joml.Vector3f;
@@ -147,7 +149,7 @@ public class DDDView extends GameAdapter implements CommandSender {
     private void onCellExit(Coordinate coordinate) {
         if (this.click == null) {
             this.boardEntity.resetCellColor(coordinate);
-            Piece p = pieceAt(coordinate);
+            Piece p = getPieceAt(coordinate);
             if (p == null)
                 return;
 
@@ -167,7 +169,7 @@ public class DDDView extends GameAdapter implements CommandSender {
 
     private void cancelPreview(Coordinate coordinate) {
         this.boardEntity.resetCellColor(coordinate);
-        Piece p = pieceAt(coordinate);
+        Piece p = getPieceAt(coordinate);
         if (p == null)
             return;
         this.world.getPiece(coordinate).setColor(p.getColor() == Color.White ? WHITE : BLACK);
@@ -179,12 +181,6 @@ public class DDDView extends GameAdapter implements CommandSender {
         }
     }
 
-    private Piece pieceAt(Coordinate pos) {
-        GetPieceAtCommand cmd = new GetPieceAtCommand(pos);
-        this.commandExecutor.executeCommand(cmd);
-        return cmd.getPiece();
-    }
-
     @Override
     public void onGameStart() {
         this.window.scheduleTask(() -> {
@@ -250,7 +246,7 @@ public class DDDView extends GameAdapter implements CommandSender {
         for (int i = 0; i < Coordinate.VALUE_MAX; i++) {
             for (int j = 0; j < Coordinate.VALUE_MAX; j++) {
                 Coordinate pos = new Coordinate(i, j);
-                Piece piece = pieceAt(pos);
+                Piece piece = getPieceAt(pos);
                 if (piece == null)
                     continue;
 
@@ -436,6 +432,11 @@ public class DDDView extends GameAdapter implements CommandSender {
         this.window.stop();
     }
 
+    @Override
+    public void onWin(Color color) {
+        openPopup(color == Color.White ? "Black victory" : "White victory");
+    }
+
     @Override
     public void onPatSituation() {
         openPopup("Pat");
@@ -444,7 +445,6 @@ public class DDDView extends GameAdapter implements CommandSender {
     @Override
     public void onSurrender(Color color) {
         openPopup(color == Color.White ? "White surrender" : "Black surrender");
-        openPopup(color == Color.White ? "Black victory" : "White victory");
     }
 
     @Override