(;GM[1]FF[4]SZ[19]
GN[Dual attack]
PC[http://senseis.xmp.net/?HowBQM26Appeared]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?HowBQM26Appeared

Dual attack]
PL[B]

AB[cd][qd][ce][cg][ch]
AW[ec][nd][de][df][dg]

;B[oc]C[B1]MN[1]
;W[nc]C[W2]MN[2]
;B[jd]C[B3]MN[3]
;W[jf]C[W4]MN[4]
;B[le]C[B5]MN[5]
;W[nf]C[W6]MN[6]
;B[lg]C[B7]MN[7]
;W[qf]C[W8]MN[8]

;
)
