(;GM[1]FF[4]SZ[19]
GN[Black to play and kill.]
PC[http://senseis.xmp.net/?BQM571]AP[GoWiki:2009]
DT[2012-08-14]
C[Diagram from http://senseis.xmp.net/?BQM571

Black to play and kill.]
PL[B]

AB[lb][lc][ld][md][nd][od][pd][qd][rd]
AW[mc][nc][oc][pc][qc][rc]
LB[ob:b][sb:a]

;B[oa]C[B1]MN[1]
;W[pa]C[W2]MN[2]
;B[na]C[B3]MN[3]
;W[ra]C[W4]MN[4]
;B[pb]C[B5]MN[5]
;W[qb]C[W6]MN[6]

;LB[ob:b][sb:a]
)
