Added chess board specification (number and cahracters), aswell as a detail view for the damen

conflict still has some errors (damen despawn somethimes) and css is very simple.

app/routes/main_routes.py

@@ -1,4 +1,4 @@
-from flask import Blueprint, render_template
+from flask import Blueprint, jsonify, render_template, request
 from flask_login  import login_required, current_user
 
 main_bp = Blueprint("main", __name__)
@@ -11,3 +11,54 @@ def home():
 @login_required
 def dashboard():
     return render_template('dashboard.html', user=current_user)
+
+@main_bp.route("/check", methods=["POST"])
+def check():
+    data = request.json
+    board = data["board"]
+    row = data["row"]
+    col = data["col"]
+
+    for r in range(len(board)):
+        c = board[r]
+
+        if c == -1 or r == row:
+            continue
+
+        # gleiche Spalte
+        if c == col:
+            return jsonify({"valid": False})
+
+        # gleiche Diagonale
+        if abs(c - col) == abs(r - row):
+            return jsonify({"valid": False})
+
+    return jsonify({"valid": True})
+
+
+@main_bp.route("/solve")
+def solve():
+    n = 8
+    solutions = []
+    board = [-1] * n
+
+    def is_safe(row, col):
+        for r in range(row):
+            c = board[r]
+            if c == col or abs(c - col) == abs(r - row):
+                return False
+        return True
+
+    def backtrack(row):
+        if row == n:
+            solutions.append(board[:])
+            return
+
+        for col in range(n):
+            if is_safe(row, col):
+                board[row] = col
+                backtrack(row + 1)
+                board[row] = -1
+
+    backtrack(0)
+    return jsonify(solutions)

app/static/css/dashboard.css

@@ -0,0 +1,143 @@
+body {
+    margin: 0;
+    font-family: Arial, sans-serif;
+    background: #f5f7fa;
+}
+
+/* 🔝 Navbar */
+.navbar {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    background: #1e293b;
+    color: white;
+    padding: 15px 30px;
+}
+
+.navbar a {
+    color: white;
+    margin-left: 15px;
+    text-decoration: none;
+}
+
+.navbar a:hover {
+    text-decoration: underline;
+}
+
+/* 📦 Layout */
+.container {
+    max-width: 900px;
+    margin: 30px auto;
+    padding: 10px;
+}
+
+/* 📇 Cards */
+.card {
+    background: white;
+    padding: 20px;
+    margin-bottom: 25px;
+    border-radius: 12px;
+    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
+}
+
+.game-card {
+    text-align: center;
+}
+
+/* ♟️ Board */
+.board-grid {
+    display: grid;
+    grid-template-columns: 30px repeat(8, 60px);
+    grid-template-rows: 30px repeat(8, 60px);
+    margin: 20px auto;
+    width: max-content;
+    border: 6px solid #1e293b;
+    border-radius: 10px;
+    overflow: hidden;
+}
+
+.label {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-weight: bold;
+    background: #aec8eb;
+    color: #1e293b;
+}
+
+
+
+.cell {
+    width: 60px;
+    height: 60px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    font-size: 30px;
+    cursor: pointer;
+    transition: 0.2s;
+}
+
+.cell:hover {
+    transform: scale(1.05);
+}
+
+.white {
+    background: #e2e8f0;
+}
+
+.black {
+    background: #475569;
+    color: white;
+}
+
+.invalid {
+    background: #ef4444 !important;
+}
+
+/* 🎛️ Buttons */
+.controls {
+    margin-top: 15px;
+}
+
+.btn {
+    padding: 10px 15px;
+    margin: 5px;
+    border: none;
+    border-radius: 8px;
+    background: #3b82f6;
+    color: white;
+    cursor: pointer;
+}
+
+.btn:hover {
+    background: #2563eb;
+}
+
+.btn.secondary {
+    background: #64748b;
+}
+
+.btn.secondary:hover {
+    background: #475569;
+}
+
+.btn.danger {
+    background: #ef4444;
+}
+
+.btn.danger:hover {
+    background: #dc2626;
+}
+
+#queenList {
+    list-style: none;
+    padding: 0;
+}
+
+#queenList li {
+    padding: 5px;
+    background: #f1f5f9;
+    margin: 4px 0;
+    border-radius: 6px;
+}

app/templates/dashboard.html

@@ -1,51 +1,208 @@
 <!DOCTYPE html>
-
+<html lang="de">
-<html lang="en">
 
 <head>
     <meta charset="UTF-8">
     <meta name="viewport" content="width=device-width, initial-scale=1.0">
     <title>Dashboard</title>
+
+    <link rel="stylesheet" href="../static/css/dashboard.css">
 </head>
 
 <body>
 
-    <nav>
+    <!-- 🔝 Navbar -->
-        <a href="{{ url_for('main.dashboard') }}">Dashboard</a>
+    <nav class="navbar">
-        <a href="{{ url_for('login.logout') }}">Logout</a>
+        <div class="nav-left">♛ 8-Queens App</div>
+        <div class="nav-right">
+            <a href="{{ url_for('main.dashboard') }}">Dashboard</a>
+            <a href="{{ url_for('login.logout') }}">Logout</a>
+        </div>
     </nav>
 
+    <!-- 📦 Container -->
     <div class="container">
 
-        ```
+        <!-- 👤 User Card -->
-        <h1>Dashboard</h1>
+        <div class="card">
+            <h2>👋 Willkommen, {{ current_user.username }}</h2>
 
-        <p>Welcome back <strong>{{ current_user.username }}</strong> 👋</p>
+            <div class="user-info">
+                <p><strong>ID:</strong> {{ current_user.id }}</p>
+                <p><strong>Username:</strong> {{ current_user.username }}</p>
 
-        <div class="user-info">
+                {% if current_user.email %}
-            <h3>Your Account</h3>
+                <p><strong>Email:</strong> {{ current_user.email }}</p>
+                {% else %}
+                <p><strong>Email:</strong> Not set</p>
+                {% endif %}
 
-            <p><strong>User ID:</strong> {{ current_user.id }}</p>
+                <p><strong>Erstellt:</strong> {{ current_user.created_at }}</p>
-            <p><strong>Username:</strong> {{ current_user.username }}</p>
+            </div>
 
-            {% if current_user.email %}
-            <p><strong>Email:</strong> {{ current_user.email }}</p>
-            {% else %}
-            <p><strong>Email:</strong> Not set</p>
-            {% endif %}
-
-            <p><strong>Account created:</strong> {{ current_user.created_at }}</p>
-        </div>
-
-        <div class="logout">
             <form action="{{ url_for('login.logout') }}" method="post">
-                <button type="submit">Logout</button>
+                <button class="btn danger" type="submit">Logout</button>
             </form>
         </div>
-        ```
+
+        <!-- ♟️ Game Card -->
+        <div class="card game-card">
+            <h2>♟️ 8-Damen Spiel</h2>
+
+            <div class="board" id="board"></div>
+
+            <div class="controls">
+                <button class="btn" onclick="solve()">Solve</button>
+                <button class="btn secondary" onclick="resetBoard()">Reset</button>
+            </div>
+        </div>
 
     </div>
 
+    <script>
+        let board = Array(8).fill(-1);
+        const boardDiv = document.getElementById("board");
+
+        function getConflicts() {
+            let conflicts = [];
+
+            for (let r1 = 0; r1 < 8; r1++) {
+                if (board[r1] === -1) continue;
+
+                for (let r2 = r1 + 1; r2 < 8; r2++) {
+                    if (board[r2] === -1) continue;
+
+                    let c1 = board[r1];
+                    let c2 = board[r2];
+
+                    if (
+                        c1 === c2 ||
+                        Math.abs(c1 - c2) === Math.abs(r1 - r2)
+                    ) {
+                        conflicts.push([r1, c1]);
+                        conflicts.push([r2, c2]);
+                    }
+                }
+            }
+
+            return conflicts;
+        }
+
+        function drawBoard() {
+            boardDiv.innerHTML = "";
+            boardDiv.className = "board-grid";
+
+            const conflicts = getConflicts();
+            const letters = ["A", "B", "C", "D", "E", "F", "G", "H"];
+
+            for (let row = -1; row < 8; row++) {
+                for (let col = -1; col < 8; col++) {
+
+                    const cell = document.createElement("div");
+
+                    // 🔹 Ecke oben links
+                    if (row === -1 && col === -1) {
+                        cell.classList.add("label");
+                    }
+
+                    // 🔹 Buchstaben (oben)
+                    else if (row === -1) {
+                        cell.textContent = letters[col];
+                        cell.classList.add("label");
+                    }
+
+                    // 🔹 Zahlen (links)
+                    else if (col === -1) {
+                        cell.textContent = 8 - row;
+                        cell.classList.add("label");
+                    }
+
+                    // 🔹 echtes Spielfeld
+                    else {
+                        cell.classList.add("cell");
+
+                        if ((row + col) % 2 === 0) {
+                            cell.classList.add("white");
+                        } else {
+                            cell.classList.add("black");
+                        }
+
+                        if (board[row] === col) {
+                            cell.textContent = "♛";
+
+                            if (conflicts.some(([r, c]) => r === row && c === col)) {
+                                cell.classList.add("invalid");
+                            }
+                        }
+
+                        cell.onclick = () => placeQueen(row, col);
+                    }
+
+                    boardDiv.appendChild(cell);
+                }
+            }
+
+            updateQueenList();
+        }
+
+        function placeQueen(row, col) {
+            if (board[row] === col) {
+                board[row] = -1;
+            } else {
+                board[row] = col;
+            }
+            drawBoard();
+            updateQueenList();
+        }
+
+        async function solve() {
+            const res = await fetch("/solve");
+            const solutions = await res.json();
+
+            board = solutions[0];
+            drawBoard();
+        }
+
+        function resetBoard() {
+            board = Array(8).fill(-1);
+            drawBoard();
+            updateQueenList();
+        }
+
+        drawBoard();
+    </script>
+
+    <div class="card">
+        <h3>📋 Damen Positionen</h3>
+        <ul id="queenList"></ul>
+    </div>
+
+    <script>
+        function updateQueenList() {
+            const list = document.getElementById("queenList");
+            list.innerHTML = "";
+
+            const letters = ["A", "B", "C", "D", "E", "F", "G", "H"];
+
+            let count = 1;
+
+            for (let row = 0; row < 8; row++) {
+                if (board[row] !== -1) {
+                    let col = board[row];
+
+                    let pos = letters[col] + (8 - row);
+
+                    const li = document.createElement("li");
+                    li.textContent = `Dame ${count}: ${pos}`;
+
+                    list.appendChild(li);
+                    count++;
+                }
+            }
+        }
+
+    </script>
+
 </body>
 
 </html>

app/templates/index.html

@@ -21,7 +21,7 @@
 
             <nav>
                 <a href="/">Home</a>
-                <a href="/solver">Solver</a>
+                <a href="/dashboard">Solver</a>
 
                 {% if session.get('user_id') %}
                 <a href="/dashboard">Dashboard</a>