Only the Blind Will See
There are multiple versions of this task, depending on your level:
Only the Blind Will See [15]
Only the Blind Will See [25]
Only the Blind Will See [35]
Only the Blind Will See [45]
Only the Blind Will See [55]
Only the Blind Will See [65]
Only the Blind Will See [75]
Only the Blind Will See [80+]