b6-b2
b2-b6
b6-b2C
b2-b6C
b6-b2N
b2-b6N
b6-b2T
b2-b6T
b6-b2D
b2-b6D
b6-a7
a7-b6
b6-a7C
a7-b6C
b6-a7N
a7-b6N
b6-a7T
a7-b6T
b6-a7D
a7-b6D
b6-a6
a6-b6
b6-a6C
a6-b6C
b6-a6N
a6-b6N
b6-a6T
a6-b6T
b6-a6D
a6-b6D
b6-a5
a5-b6
b6-a5C
a5-b6C
b6-a5N
a5-b6N
b6-a5T
a5-b6T
b6-a5D
a5-b6D
b6-f2
f2-b6
b6-f2C
f2-b6C
b6-f2N
f2-b6N
b6-f2T
f2-b6T
b6-f2D
f2-b6D