P a 2 P b 2 P c 2 P d 2 P e 2 P f 2 P g 2 P h 2 p a 7 p b 7 p c 7 p d 7 p e 7 p f 7 p g 7 p h 7 R a 1 N b 1 B c 1 Q d 1 K e 1 B f 1 N g 1 R h 1 r a 1 n b 1 b c 1 q d 1 k e 1 b f 1 n g 1 r h 1 z z 0