Sudoku

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 460.08 460.08"
>
    <linearGradient
        id="a"
        x1="-66.46"
        x2="-8.96"
        y1="575.37"
        y2="575.37"
        gradientTransform="matrix(8 0 0 -8 531.72 4833)"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#f47f21" />
        <stop offset=".07" stop-color="#f3702c" />
        <stop offset=".33" stop-color="#ef3856" />
        <stop offset=".46" stop-color="#ed2266" />
        <stop offset="1" stop-color="#5a4199" />
    </linearGradient>
    <path
        d="M336.84 82.96h-213.6c-22.091 0-40 17.909-40 40v213.6c0 22.091 17.909 40 40 40h213.6c22.091 0 40-17.909 40-40V123.28c.177-22.091-17.588-40.142-39.679-40.319l-.321-.001zM94.92 189.04H177v82.08H94.92v-82.08zm94.08 0h82.08v82.08H189v-82.08zm94.08 0h82.08v82.08h-82.08v-82.08zm82.08-65.76v53.76h-82.08V94.96h53.76c15.622.044 28.276 12.698 28.32 28.32zm-94.08 53.76H189V94.96h82.08v82.08zm-176-53.76c.044-15.622 12.698-28.276 28.32-28.32h53.76v82.08H94.92l.16-53.76zm0 213.6v-53.76H177v82.08h-53.76c-15.622-.044-28.276-12.698-28.32-28.32h.16zm94.08-53.76h81.92v82.08H189l.16-82.08zm176 53.76c-.044 15.622-12.698 28.276-28.32 28.32h-53.76v-82.08h82.08v53.76zm-210.8-22.56-9.92 10 9.92 9.76a5.92 5.92 0 0 1 0 8.48 5.681 5.681 0 0 1-4.24 1.76 5.917 5.917 0 0 1-4.24-1.76l-9.92-9.92-9.92 10.08a5.681 5.681 0 0 1-4.24 1.76 5.917 5.917 0 0 1-4.24-1.76 6 6 0 0 1 0-8.48l10-9.92-10-10a6 6 0 0 1 8.48-8.48l10 10 9.92-10a6 6 0 0 1 8.48 0 5.92 5.92 0 0 1-.08 8.48zm148.08 19.76 9.92-9.92-9.92-10a5.92 5.92 0 0 1 0-8.48 6 6 0 0 1 8.48 0l9.92 10 10-10a6 6 0 0 1 8.48 8.48l-10 10 10 9.92a6 6 0 0 1 0 8.48 5.917 5.917 0 0 1-4.24 1.76 5.681 5.681 0 0 1-4.24-1.76l-10-9.92-9.92 9.92a5.917 5.917 0 0 1-4.24 1.76 5.84 5.84 0 0 1-4.24-1.76c-2.375-2.247-2.537-5.933-.29-8.308.075-.08.153-.157.29-.172zm-90.8-185.76 9.92-10-9.92-9.92a5.92 5.92 0 0 1 0-8.48 6 6 0 0 1 8.48 0l9.92 9.92 9.92-9.92a6 6 0 0 1 8.48 0 5.92 5.92 0 0 1 0 8.48l-9.92 9.92 9.92 10a5.92 5.92 0 0 1 0 8.48 5.996 5.996 0 0 1-4.24 1.76 6.32 6.32 0 0 1-4.24-1.76l-9.92-10-9.92 10a6.32 6.32 0 0 1-4.24 1.76 5.996 5.996 0 0 1-4.24-1.76c-2.467-2.146-2.923-5.659-.777-8.126.18-.206.374-.4.777-.354zm115.12 13.76c14.404 0 26.08-11.676 26.08-26.08s-11.676-26.08-26.08-26.08c-14.404 0-26.08 11.676-26.08 26.08.044 14.385 11.695 26.036 26.08 26.08zm0-40c7.776 0 14.08 6.304 14.08 14.08s-6.304 14.08-14.08 14.08-14.08-6.304-14.08-14.08c-.088-7.776 6.143-14.151 13.919-14.239l.161-.001v.16zm-96.72 176.16c-14.404 0-26.08 11.676-26.08 26.08 0 14.404 11.676 26.08 26.08 26.08 14.404 0 26.08-11.676 26.08-26.08 0-14.404-11.676-26.08-26.08-26.08zm0 40c-7.776 0-14.08-6.304-14.08-14.08s6.304-14.08 14.08-14.08 14.08 6.304 14.08 14.08c.088 7.776-6.143 14.151-13.919 14.239l-.161.001v-.16zm0-134.24c-14.404 0-26.08 11.676-26.08 26.08 0 14.404 11.676 26.08 26.08 26.08 14.404 0 26.08-11.676 26.08-26.08-.088-14.341-11.739-25.92-26.08-25.92V204zm0 40c-7.776 0-14.08-6.305-14.079-14.081 0-7.776 6.305-14.08 14.081-14.079 7.776.001 14.08 6.305 14.079 14.081l-.001.159c.089 7.731-6.107 14.071-13.839 14.159l-.241.001V244zm0 216c-127.026 0-230-102.975-230-230S103.015 0 230.04 0s230 102.975 230 230v.08c-.176 126.952-103.048 229.824-230 230V460zm0-448c-120.398 0-218 97.602-218 218s97.602 218 218 218c120.367 0 217.956-97.553 218-217.92-.132-120.343-97.657-217.868-218-218V12z"
        fill="url(#a)"
    />
</svg>