22. If a Rook and a Knight perpetually chase each other, the game should be a draw. (See example in Diagram 48)

Diagram 48: Red (in Capital) moves first

R8+1 n4+3
R87 n3-5
R7-1 n5-4
R76 n4+6
R6+1 n6+5
R65 n5-3
R5-1 n3-4
R56 ....

Red and Black keep chasing each other. Both sides violate the rule and it should be a draw if both sides continue.