(;GM[1]FF[4]SZ[19:13]
GN[on a 13x13 board]
PC[https://senseis.xmp.net/?BQM598]AP[GoWiki:2009]
DT[2019-10-23]
C[Diagram from https://senseis.xmp.net/?BQM598

on a 13x13 board]
PL[B]

AB[rb][rc][qd][rd][pe][qe][mf][nf][of][qf][rf][sf][qi][nj][qj][pk]
AW[ra][qb][nc][qc][od][pd][oe][se][pf][ng][pg][rg][nh][ph][qh][pi]
SQ[nf]
LB[sg:a]

;B[rh]C[B1]MN[1]
;W[ri]C[W2]MN[2]
;B[sh]C[B3]MN[3]

;SQ[nf]
LB[sg:a]
)
