(;GM[1]FF[4]SZ[19]
GN[Black to play and live by [oiotoshi\]]
PC[http://senseis.xmp.net/?GokyoShumyoSection5Problem28/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection5Problem28/Solution

Black to play and live by [oiotoshi\]]
PL[B]

AB[ec][fc][gc][cd][dd][hd][jd][ce][he][cf][df][hf]
AW[db][hb][bc][dc][hc][ed][gd][de][ee][ge][ff][fh]

;B[fg]C[B1]MN[1]
;W[eg]C[W2]MN[2]
;B[ef]C[B3]MN[3]
;W[gg]C[W4]MN[4]
;B[fe]C[B5]MN[5]
;W[fd]C[W6]MN[6]
;B[gf]C[B7]MN[7]

;
)
