(;GM[1]FF[4]SZ[19]
GN[Liberties of single stones]
PC[http://senseis.xmp.net/?LibertyIntroductory]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?LibertyIntroductory

Liberties of single stones]
PL[B]

CR[ba][da][fa][ab][eb][cc][bd][dd][ce]

;B[aa]C[B1]MN[1]
;W[ea]C[W2]MN[2]
;B[cd]C[B3]MN[3]

;CR[ba][da][fa][ab][eb][cc][bd][dd][ce]
)
