(;GM[1]FF[4]SZ[19]
GN[Life and death puzzle]
PC[http://senseis.xmp.net/?OneThousandAndOneLifeAndDeathProblems/Problem719Discussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?OneThousandAndOneLifeAndDeathProblems/Problem719Discussion

Life and death puzzle]
PL[B]

AB[aq][bq][cq][dq][eq][er][as][es]
AW[bo][bp][dp][ep][fp][fq][br][cr][fr][fs]

;B[cs]C[B1]MN[1]
;W[bs]C[W2]MN[2]
;B[dr]C[B3]MN[3]
;W[ds]C[W4]MN[4]
;B[ar]C[B5]MN[5]

;
)
