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Update Sudoku Game JAR files
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Sudoku Game</title>
<link rel="stylesheet" href="style.css">
</head>
<body>
<div class="container">
<h1>🎮 Sudoku Game</h1>
<div class="controls">
<select id="difficulty">
<option value="easy">Easy</option>
<option value="medium" selected>Medium</option>
<option value="hard">Hard</option>
</select>
<button onclick="newGame()">New Game</button>
<button onclick="validateBoard()">Check</button>
<button onclick="getHint()">Hint</button>
<button onclick="showSolution()">Solution</button>
<button onclick="clearBoard()">Clear All</button>
</div>
<div id="message" class="message"></div>
<div id="sudoku-board" class="sudoku-board"></div>
<div class="instructions">
<p>💡 <strong>How to play:</strong></p>
<ul>
<li>Click on any empty cell and type a number (1-9)</li>
<li>Use arrow keys to navigate between cells</li>
<li>Press Delete or Backspace to clear a cell</li>
<li>Press Tab to move to the next empty cell</li>
<li>Or use the number buttons below</li>
</ul>
</div>
</div>
<script src="script.js"></script>
</body>
</html>