A B C D E F G H
+---+---+---+---+---+---+---+---+
1 | | | a | |
+ + + +---+---+ + + +
2 | | b | | c | |
+ +---+ + +---+---+---+ +
3 | | | |
+ + +---+---+ +---+---+ +
4 | | | d |
+---+---+ + +---+---+ +---+
5 | e | \ |
+ + + + +---+---+ + +
6 | / | | f | |
+---+ +---+ +---+ +---+ +
7 | | g | | |
+ +---+ + + +---+---+ +
8 | \ | | h |
+---+---+ +---+ +---+---+---+
Summary:
78 sheets
03 diagonals
