A number of attack and defense options need to be offered. Examples:
  • Stand ground at any cost (perhaps for the last army in a city)
  • Orderly retreat
  • Counterattack
A previous (possibly unrecorded) note was made of the need of the defender to specify defending piece when an option exists. On reflection, this is not quite right. Instead,
  • Attacker specifies both attacking and defending pieces.
Side note: both type AND quantity of adjacent pieces should normally be apparent.