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<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<style type="text/css">
		#wrapper{
			width: 600px;
			height: 600px;
			margin: auto;
			background: #eee;
		}
		pre{
			background: #ccc;
			text-align: center;
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<body>
	<h2 style="text-align:center;">Draw A Checker Board On Canvas using JavaScript</h2>
	<div id="wrapper">

		<canvas id="myCanvas" width="600" height="600" style="display:block;position:relative;border:1px solid red;margin:auto;"></canvas>

	</div>

	<script type="text/javascript">
		var canvas = document.getElementById("myCanvas");
		var ctx = canvas.getContext("2d");
		var grd=ctx.createLinearGradient(0,0,100,0);

		grd.addColorStop(0,"red");
		ctx.moveTo(0,0)
		ctx.lineTo(600,600)

		ctx.moveTo(0, 600)
		ctx.lineTo(600,0)

		ctx.moveTo(300,0)
		ctx.lineTo(300,600)

		ctx.moveTo(0,300)
		ctx.lineTo(600,300)

		ctx.moveTo(0,300)
		ctx.lineTo(300,600)

		ctx.moveTo(300,0)
		ctx.lineTo(0,300)

		ctx.moveTo(300,0)
		ctx.lineTo(600,300)

		ctx.moveTo(600,300)
		ctx.lineTo(300,600)

		ctx.moveTo(0,150)
		ctx.lineTo(600,150)

		ctx.moveTo(0,450)
		ctx.lineTo(600,450)

		ctx.moveTo(150,0)
		ctx.lineTo(150,600)

		ctx.moveTo(450,0)
		ctx.lineTo(450,600)

		ctx.strokeStyle = grd

		ctx.stroke()
	</script>
</body>
</html>