(;GM[1]FF[4]SZ[19]
GN[Black can live]
PC[http://senseis.xmp.net/?BeginnerExercise120/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BeginnerExercise120/Solution

Black can live]
PL[B]

AB[cq][dq][eq][br][fr][bs][es][gs]
AW[dn][co][bp][dp][ep][bq][fq][gq][ar][gr][ir]

;B[dr]C[B1]MN[1]
;W[hs]C[W2]MN[2]
;B[fs]C[B3]MN[3]

;
)
