<edu.rpi.legup.Legup>
    <edu.rpi.legup.puzzle name="LightUp">
        <board size="3">
            <cells>
                <cell value="2" x="1" y="1"/>
                <cell value="2" x="2" y="2"/>
            </cells>
        </board>
    </edu.rpi.legup.puzzle>
</edu.rpi.legup.Legup>