6/0 6/1

7/6_{x x}6/7 (6/10)

7/6_x 2/6 (8/10)

7/5 3/6 (6/10)

0/6 1/6

4/6 2/6

_x6/7 2/6

6/3 6/1

6/3 6/1

6/1 4/6 (8/10)

6/2 6/4

7/6_x 6/4

6/4 6/2

6/2 6/3

4/6 6/3 (10/5)

5/7 6/4 (10/4)

0/6 7/5 (2/10)

6/1 7/5

4/6 1/6

6/4 6/4

6/2 6/0

4/6 6/4 (5/10)

6/3 6/3

6/3 6/4

0/6 2/6

6/3 4/6 (4/10)

4/6 3/6

2/6 5/7

6/2 6/1

4/6 4/6

_x6/7 7/5 6/3

3/6 1/6

_x6/7 6/4 6/4

6/3 _x6/7 (7/10)

6/3 6/4

6/4 6/3