Cannon endgames

A cannon needs something to fire over, so a bare board is the defender's friend. Includes the horse-and-cannon pairings.

6 chapters

1. A cannon and one advisor vs Two advisors

   With its own advisor as a screen, the cannon beats two advisors.

2. Two cannons and an advisor vs All four defensive pieces

   Add one advisor and the two cannons beat the full defence.

3. Horse and cannon, both sides with four defensive pieces vs A horse

   Horse and cannon, both sides with four defensive pieces vs A horse

4. Two cannons vs Two elephants

   Two cannons alone cannot break two elephants.

5. A cannon with all four defensive pieces vs All four defensive pieces

   A cannon needs at least an extra soldier to break the full defence.

6. Horse and cannon, both sides with four defensive pieces vs A cannon

   Same attacking material, and the defending minor piece alone flips the result: a cannon holds where a horse does not.