(;GM[1]FF[4]SZ[19]
GN[Black to play.]
PC[http://senseis.xmp.net/?TheMagicOfGoYomiuriShimbun/Problem2Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TheMagicOfGoYomiuriShimbun/Problem2Solution

Black to play.]
PL[B]

AB[mb][nb][nc][qc][nd][od][pd][qe][re][se]
AW[na][ob][rb][oc][pc][rc][qd][rd][sd]

;B[pa]C[B1]MN[1]
;W[qb]C[W2]MN[2]
;B[oa]C[B3]MN[3]
;W[qa]C[W6]MN[6]
;B[ma]C[B7]MN[7]

;
)
