(;GM[1]FF[4]SZ[19]
GN[Black plays c or d]
PC[http://senseis.xmp.net/?BQM356]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM356

Black plays c or d]
PL[B]

AB[oc][qc][rc][nd][pd][je][me][ne][jf][pf][kg][jh][kh]
AW[mb][ob][pb][qb][jc][nc][jd][ld][md][nf][pp]

;B[qm]C[B1]MN[1]
;W[pn]C[W2]MN[2]
;B[pm]C[B3]MN[3]
;W[qn]C[W4]MN[4]

;
)
