(;GM[1]FF[4]SZ[19]
GN[I'm not convinced 2: ladder with an extra liberty (squared)]
PC[http://senseis.xmp.net/?TacticalDiscussionOfKageyamasExample]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TacticalDiscussionOfKageyamasExample

I'm not convinced 2: ladder with an extra liberty (squared)]
PL[B]

AB[cd][dd][ee][ef][eg]
AW[ec][ed][gd][de][fe][df]
SQ[ce]

;B[dg]C[B1]MN[1]
;W[cf]C[W2]MN[2]
;B[bf]C[B3]MN[3]
;W[cg]C[W4]MN[4]
;B[ch]C[B5]MN[5]
;W[bg]C[W6]MN[6]

;SQ[ce]
)
