Puzzle

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 24 24"
>
    <linearGradient
        id="a"
        x1=".5"
        x2="23.5"
        y1="12"
        y2="12"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#87f1fc" />
        <stop offset=".256" stop-color="#7fd4fb" />
        <stop offset=".529" stop-color="#78bcfb" />
        <stop offset=".784" stop-color="#74aefa" />
        <stop offset="1" stop-color="#73a9fa" />
    </linearGradient>
    <path
        fill="url(#a)"
        d="M23 11.5h-2.5a3 3 0 0 0-6 0h-2V9a.5.5 0 0 0-.5-.5h-.5a2 2 0 0 1 0-4h.5a.5.5 0 0 0 .5-.5V1a.5.5 0 0 0-.5-.5H1a.5.5 0 0 0-.5.5v22a.5.5 0 0 0 .5.5h22a.5.5 0 0 0 .5-.5V12a.5.5 0 0 0-.5-.5zM1.5 1.5h10v2a3 3 0 0 0 0 6v2H9a.5.5 0 0 0-.5.5v.5a2 2 0 0 1-4 0V12a.5.5 0 0 0-.5-.5H1.5zm10 18.5v2.5h-10v-10h2a3 3 0 0 0 6 0h2V15a.5.5 0 0 0 .5.5h.5a2 2 0 0 1 0 4H12a.5.5 0 0 0-.5.5zm11 2.5h-10v-2a3 3 0 0 0 0-6v-2H15a.5.5 0 0 0 .5-.5v-.5a2 2 0 0 1 4 0v.5a.5.5 0 0 0 .5.5h2.5zM18.5 5a.501.501 0 0 0-.5-.5h-1a1.5 1.5 0 0 1 0-3V1a.5.5 0 0 1 1 0v.5h1a.5.5 0 0 1 0 1h-2a.5.5 0 0 0 0 1h1a1.5 1.5 0 0 1 0 3V7a.5.5 0 0 1-1 0v-.5h-1a.5.5 0 0 1 0-1h2a.501.501 0 0 0 .5-.5z"
    />
</svg>