(;GM[1]FF[4]SZ[19]
GN[Protection by ladder]
PC[http://senseis.xmp.net/?JohnMoser]AP[GoWiki:2009]
DT[2010-11-09]
C[Diagram from http://senseis.xmp.net/?JohnMoser

Protection by ladder]
PL[W]

AB[ih][jh][ik][jk]
AW[ki]
LB[gh:b]

;W[ji]C[W1]MN[1]
;B[ii]C[B2]MN[2]
;W[ij]C[W3]MN[3]
;B[hj]C[B4]MN[4]
;W[jj]C[W5]MN[5]
;B[gk]C[B6]MN[6]
;W[hi]C[W7]MN[7]
;B[gi]C[B8]MN[8]
;W[hh]C[W9]MN[9]
;B[hg]C[B10]MN[10]

;LB[gh:b]
)
