At the root node trying, CLN(trying) is 6 because there are six crossing-links under its sub-span: (e 1 j 4 , e 2 j 3 ), (e 1 j 4 , e 4 j 2 ), (e 1 j 4 , e 5 j 1 ), (e 2 j 3 , e 4 j 2 ), (e 2 j 3 , e 5 j 1 ) and (e 4 j 2 , e 5 j 1 ).
ccLN(trying) is 5 because (e 4 j 2 , e 5 j 1 ) falls under its child node play, thus does not count towards ccLN of trying.