(;GM[1]FF[4]SZ[19]
GN[Black to live]
PC[http://senseis.xmp.net/?GokyoShumyoSection1Problem7]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection1Problem7

Black to live]
PL[B]

AB[nb][rb][mc][nc][oc][qc][pd][qd][ne][pe][of][pf][qg][rg]
AW[na][ra][kb][mb][ob][pb][qb][lc][pc][rc][ld][mf][qf][rf][ng][pg][ph][qh]


;
)
