(;GM[1]FF[4]SZ[19]
GN[Problem]
PC[http://senseis.xmp.net/?BQM280]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?BQM280

Problem]
PL[B]

AB[eb][ec][ed][ee][cf][df][ef][ch]
AW[bc][dd][be][de]

;B[cc]C[B1]MN[1]
;W[cd]C[W2]MN[2]
;B[bb]C[B3]MN[3]
;W[cb]C[W4]MN[4]
;B[ca]C[B5]MN[5]
;W[db]C[W6]MN[6]
;B[dc]C[B7]MN[7]

;
)
