30. A King or a Pawn cannot work together with another piece to
perpetually chase an opponent's piece. (See examples in
Diagram 70, 71, and 72)
Diagram 71: Red (in Capital) moves first
K65 p54
K56 p45
K65 p54
K56 p45
K65 ....
Explanation:
When Red's King is perpetually chasing the Black Pawn, the two Red
Knights also are perpetually chasing the Black Pawn. This is a
violation of the rule and Red has to change or lose.
Diagram 72: Red (in Capital) moves first
P78 c23
P87 c32
P78 c23
P87 c32
P78 ....
Explanation:
When Red's Pawn is perpetually chasing the Black Cannon, the two Red
Knights also are perpetually chasing the Black Cannon. This violates
the rule and Red has to change or lose.
Diagram 73: Red (in Capital) moves first
P98 r21
P89 r12
P98 r21
P89 r12
P98 ....
Explanation:
When Red's Pawn is perpetually chasing the Black Rook, the two Red
Cannons are also perpetually chasing the Black Cannon. Red violates
the rule and has to change.