(;GM[1]FF[4]SZ[19]
GN[White could live with 1]
PC[http://senseis.xmp.net/?PGB91]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?PGB91

White could live with 1]
PL[W]

AB[ga][bb][gb][nb][ob][bc][cc][fc][hc][ic][mc][pc][qc][ad][cd][fd][gd][md][nd][od][be][de][ee][bf][jf][lf][nf]
AW[ba][ca][ea][fa][la][na][cb][db][fb][ib][mb][dc][ec][kc][lc][nc][rc][dd][jd][ld][qd][ce][re][cf][pf][bg][cg]

;W[kb]C[W1]MN[1]
;B[ja]C[B2]MN[2]
;W[ia]C[W3]MN[3]

;
)
