Brain Training

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient
        id="a"
        x1="256"
        x2="256"
        y1="467"
        y2="0"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#addcff" />
        <stop offset=".503" stop-color="#eaf6ff" />
        <stop offset="1" stop-color="#eaf6ff" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="256"
        x2="256"
        y1="512"
        y2="60"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#5558ff" />
        <stop offset="1" stop-color="#00c0ff" />
    </linearGradient>
    <path
        fill="url(#a)"
        d="M497 0h-60c-8.284 0-15 6.716-15 15v75H90V15c0-8.284-6.716-15-15-15H15C6.716 0 0 6.716 0 15v180c0 8.284 6.716 15 15 15h60c8.284 0 15-6.716 15-15v-75h332v75c0 8.284 6.716 15 15 15h60c8.284 0 15-6.716 15-15V15c0-8.284-6.716-15-15-15zM256 317c-16.542 0-30 13.458-30 30v90c0 16.542 13.458 30 30 30s30-13.458 30-30v-90c0-16.542-13.458-30-30-30zm-105 0c-16.542 0-30 13.458-30 30s13.458 30 30 30c8.271 0 15 6.729 15 15s-6.729 15-15 15c-16.542 0-30 13.458-30 30s13.458 30 30 30c41.355 0 75-33.645 75-75s-33.645-75-75-75zm210 60c16.542 0 30-13.458 30-30s-13.458-30-30-30c-41.355 0-75 33.645-75 75s33.645 75 75 75c16.542 0 30-13.458 30-30s-13.458-30-30-30c-8.271 0-15-6.729-15-15s6.729-15 15-15z"
    />
    <path
        fill="url(#b)"
        d="M477.35 374.432A104.274 104.274 0 0 0 481 347c0-52.804-39.185-96.622-90-103.925V75c0-8.284-6.716-15-15-15s-15 6.716-15 15v122.05c-12.545-9.44-28.127-15.05-45-15.05-24.508 0-46.306 11.818-60 30.052C242.306 193.818 220.508 182 196 182c-16.873 0-32.455 5.61-45 15.05V75c0-8.284-6.716-15-15-15s-15 6.716-15 15v168.075C70.185 250.378 31 294.196 31 347c0 9.331 1.225 18.512 3.65 27.432C13.849 388.137 1 411.438 1 437c0 41.355 33.645 75 75 75h360c41.355 0 75-33.645 75-75 0-25.562-12.849-48.863-33.65-62.568zM151 452c-8.284 0-15-6.716-15-15s6.716-15 15-15c16.542 0 30-13.458 30-30s-13.458-30-30-30c-8.284 0-15-6.716-15-15s6.716-15 15-15c33.084 0 60 26.916 60 60s-26.916 60-60 60zm120-15c0 8.284-6.716 15-15 15s-15-6.716-15-15v-90c0-8.284 6.716-15 15-15s15 6.716 15 15zm90-15c8.284 0 15 6.716 15 15s-6.716 15-15 15c-33.084 0-60-26.916-60-60s26.916-60 60-60c8.284 0 15 6.716 15 15s-6.716 15-15 15c-16.542 0-30 13.458-30 30s13.458 30 30 30z"
    />
</svg>