(;GM[1]FF[4]SZ[19]
GN[White to play (a) (c and d are miai)]
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 (a) (c and d are miai)]
PL[W]

AB[mc][od][qd][me][qe][re][jg][ng][qg][oh][ph]
AW[mb][nb][pb][pc][rc][rd][pf][pg][mh][qh][ni][qi][pj]
LB[nd:c][qf:d]

;W[of]C[W1]MN[1]
;B[nf]C[B2]MN[2]
;W[pd]C[W3]MN[3]
;B[pe]C[B4]MN[4]
;W[oe]C[W5]MN[5]

;LB[nd:c][qf:d]
)
