(;GM[1]FF[4]SZ[19]
GN[Difficult joseki or trick sequence? (A1a)]
PC[http://senseis.xmp.net/?BQM30]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM30

Difficult joseki or trick sequence? (A1a)]
PL[B]

AB[pa][ob][oc][rc][dd][pd][qd][rd][ne][oe][pf][jj][pj][dp][pp]
AW[pb][qb][rb][nc][pc][qc][ld][nd][od][me][qf]

;B[mf]C[B1]MN[1]
;W[lf]C[W2]MN[2]
;B[lg]C[B3]MN[3]
;W[mg]C[W4]MN[4]
;B[nf]C[B5]MN[5]
;W[kf]C[W6]MN[6]
;B[lh]C[B7]MN[7]

;
)
