diff --git a/src/main/java/de/deversmann/facade/Facade.java b/src/main/java/de/deversmann/facade/Facade.java
index d8dcef2..2fc2428 100644
--- a/src/main/java/de/deversmann/facade/Facade.java
+++ b/src/main/java/de/deversmann/facade/Facade.java
@@ -1,4 +1,101 @@
 package de.deversmann.facade;
 
+import de.deversmann.domain.*;
+
+import java.io.IOException;
+import java.util.List;
+
 public class Facade {
+
+    private final CSVReader csvReader;
+    private final HighscoreManager highscoreManager;
+    private final Zeiterfassung zeiterfassung;
+
+    private PuzzleData currentPuzzleData;
+    private String currentPuzzleName;
+    private int currentErrorCount = 0;
+
+    public Facade() {
+        this.csvReader = new CSVReader();
+        this.highscoreManager = new HighscoreManager();
+        this.zeiterfassung = new Zeiterfassung();
+    }
+
+    public void ladeSpielfeld(String csvPfad) throws IOException {
+        this.currentPuzzleData = csvReader.readPuzzleWithSolution(csvPfad);
+        this.currentPuzzleName = csvPfad;
+        this.currentErrorCount = 0;
+
+        zeiterfassung.stop();
+        zeiterfassung.start();
+        System.out.println("Neues Spielfeld geladen, Timer + Fehler=0");
+    }
+
+    public long stopZeiterfassung() {
+        zeiterfassung.stop();
+        return zeiterfassung.getElapsedTimeInSeconds();
+    }
+
+    public long getElapsedTimeSoFar() {
+        return zeiterfassung.getElapsedTimeInSeconds();
+    }
+
+    public int[][] getAktuellesPuzzle() {
+        return (currentPuzzleData != null) ? currentPuzzleData.getPuzzle() : null;
+    }
+
+    public List<int[]> getLoesungsKoordinaten() {
+        return (currentPuzzleData != null) ? currentPuzzleData.getSolutionCoordinates() : null;
+    }
+
+    // Fehler-Tracking
+    public void incrementErrorCount() {
+        currentErrorCount++;
+    }
+
+    public int getCurrentErrorCount() {
+        return currentErrorCount;
+    }
+
+    // Highscore
+    public void addHighscoreForCurrentPuzzle(String playerName, long timeSeconds, int errorCount) {
+        if (currentPuzzleName != null && !currentPuzzleName.isEmpty()) {
+            highscoreManager.addHighscore(currentPuzzleName, playerName, timeSeconds, errorCount);
+        }
+    }
+
+    public List<HighscoreEntry> getHighscoresForCurrentPuzzle() {
+        if (currentPuzzleName == null) {
+            return List.of();
+        }
+        return highscoreManager.getHighscores(currentPuzzleName);
+    }
+
+    public double getAverageTimeForCurrentPuzzle() {
+        if (currentPuzzleName == null) {
+            return -1;
+        }
+        return highscoreManager.getAverageTime(currentPuzzleName);
+    }
+
+    public String getCurrentPuzzleName() {
+        return currentPuzzleName;
+    }
+
+    public void saveCurrentPuzzleHighscoreToFile() throws IOException {
+        if (currentPuzzleName == null) return;
+        String base = currentPuzzleName.replaceAll(".*/", "");
+        String shortName = base.replace(".csv", "") + "_highscore.txt";
+        highscoreManager.saveSinglePuzzle(currentPuzzleName, shortName);
+        System.out.println("Highscore zu " + base + " in " + shortName + " gespeichert.");
+    }
+
+
+    public void loadCurrentPuzzleHighscoreFromFile() throws IOException {
+        if (currentPuzzleName == null) return;
+        String base = currentPuzzleName.replaceAll(".*/", "");
+        String shortName = base.replace(".csv", "") + "_highscore.txt";
+        highscoreManager.loadSinglePuzzle(currentPuzzleName, shortName);
+        System.out.println("Highscore zu " + base + " aus " + shortName + " geladen (falls existiert).");
+    }
 }
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