Apparently only the Emperor was considered royal, and because initially it is not present the AI thought it had alread lost. I now also made King and Crown Prince royal.
Beware that this is a quite old Diagram, from the time it did not have an AI. When the AI was introduced it will also be possible to use it here, but it has not really been tested on a game of this size, and might think very long. You might have to switch the search depth to a lower value to make it move in acceptable time.
Apparently only the Emperor was considered royal, and because initially it is not present the AI thought it had alread lost. I now also made King and Crown Prince royal.
Beware that this is a quite old Diagram, from the time it did not have an AI. When the AI was introduced it will also be possible to use it here, but it has not really been tested on a game of this size, and might think very long. You might have to switch the search depth to a lower value to make it move in acceptable time.