(;GM[1]FF[4]SZ[19]
GN[White to play]
PC[http://senseis.xmp.net/?IgoHatsuyoRonProblem167/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?IgoHatsuyoRonProblem167/Attempts

White to play]
PL[W]

AB[pd][rd][oe][of][pf][og][nh][ph][rh][pi][rj]
AW[mc][oc][qe][qf][pg][qg][oh][ni][oi][ri]
LB[qb:a][rc:b]

;W[qd]C[W1]MN[1]
;B[qc]C[B2]MN[2]
;W[pc]C[W3]MN[3]

;LB[qb:a][rc:b]
)
