+---+---+---+---+---+---+---+---+
1 | R |   |   | K | Q | B | N | R |
  +---+---+---+---+---+---+---+---+
2 | P | P | P |   | P | P | P | P |
  +---+---+---+---+---+---+---+---+
3 |   |   | N |   |   |   |   |   |
  +---+---+---+---+---+---+---+---+
4 |   |   |   | P |   |   |   |   |
  +---+---+---+---+---+---+---+---+
5 |   |   |   | p |   |   | B |   |
  +---+---+---+---+---+---+---+---+
6 |   |   |   |   |   | n |   |   |
  +---+---+---+---+---+---+---+---+
7 | p | p | p |   | p | p | p | p |
  +---+---+---+---+---+---+---+---+
8 | r | n | b | k | q | b |   | r |
  +---+---+---+---+---+---+---+---+
    h   g   f   e   d   c   b   a
b KQkq -