Missed to mark Deadstones

[lightzane]

The eight white stones on the lower left of the board are not identified as deadstones. But they are actually deadstones.

await deadstones.guess([
      [0, 1, 0, 1, 0, 1, 0, 1, 1, 1, -1, 1, 0],
      [1, 0, 0, 1, 0, 1, 1, 1, 0, 1, -1, -1, -1],
      [1, 1, 0, 1, 0, 1, -1, 1, 1, 1, -1, 0, 0],
      [0, 1, 0, 0, 1, 1, -1, 1, 0, 0, 1, -1, -1],
      [0, 0, 1, 1, -1, -1, -1, 1, 0, 1, 1, 1, -1],
      [0, 1, 1, 0, 1, -1, 0, -1, 1, 1, 1, -1, 0],
      [1, 0, 1, 1, 1, -1, 0, -1, -1, 0, 0, -1, -1],
      [0, 0, 1, 1, -1, -1, -1, 0, 0, -1, -1, -1, -1],
      [1, 1, 1, 0, 1, -1, -1, 0, 0, -1, 0, 0, -1],
      [0, 0, 1, 1, 1, 1, -1, -1, 0, -1, 1, 1, 1],
      [1, 1, -1, -1, 1, 1, 1, -1, 0, -1, -1, 1, -1],
      [1, -1, -1, -1, -1, 1, -1, -1, -1, -1, -1, -1, -1],
      [0, 1, -1, 0, -1, 1, -1, 0, -1, 0, -1, 0, 0],
    ], { finished: true })

[xxoogov]

Have you found a solution? Or better yet, a third-party library