(;GM[1]FF[4]SZ[19]
GN[White to play (ac) II]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem173/Attempts]AP[GoWiki:2009]
DT[2014-09-12]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem173/Attempts

White to play (ac) II]
PL[W]

AB[mc][nd][od][qd][me][pe][qe][re][nf][sf][jg][ng][qg][rg][oh][ph]
AW[mb][nb][pb][pc][rc][pd][rd][oe][of][pf][qf][rf][pg][mh][qh][ni][qi][pj]

;W[rh]C[W11]MN[11]
;B[sg]C[B12]MN[12]
;W[sh]C[W13]MN[13]
;B[se]C[B14]MN[14]
;W[qc]C[W15]MN[15]

;
)
