diff --git a/app.py b/app.py
index e9c26d7..b33049a 100644
--- a/app.py
+++ b/app.py
@@ -1,4 +1,4 @@
-from flask import Flask
+from flask import Flask, request
 
 app = Flask(__name__)
 
@@ -8,5 +8,21 @@ def hello():
     return "Glück Auf aus meinem Escape-Room!"
 
 
+@app.route("/frage", methods=["GET", "POST"])
+def frage():
+    if request.method == "POST":
+        if request.form["antwort"] == "8":
+            return "Richtig! Tür offen."
+        return "Leider falsch."
+
+    return (
+        '<form method="post">'
+        "Was ist 0+4? "
+        '<input name="antwort">'
+        "<button>OK</button>"
+        "</form>"
+    )
+
+
 if __name__ == "__main__":
     app.run(host="0.0.0.0", port=9007)