(;GM[1]FF[4]SZ[19]
GN[Attack heavy stones]
PC[http://senseis.xmp.net/?BQM170]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM170

Attack heavy stones]
PL[W]

AB[fd][kd][pd][ge][he][dg][dh][dp][np][nq][pq]
AW[dc][fc][hd][id][de][ef][eg][pm][qo][lq]
CR[fd][ge][he][lq]
SQ[dg][dh][pm][qo]
LB[ie:a][cn:b]

;W[dk]C[W1]MN[1]

;CR[fd][ge][he][lq]
SQ[dg][dh][pm][qo]
LB[ie:a][cn:b]
)
