(;GM[1]FF[4]SZ[19]
GN[Big corner]
PC[http://senseis.xmp.net/?GokyoShumyoSection4Problem58/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection4Problem58/Attempts

Big corner]
PL[B]

AB[bb][hb][kb][cc][dc][hc][jc][lc][dd][ed][fd][gd][jd][ge][je][df][gf][hf][if]
AW[cb][db][ib][jb][bc][ec][fc][gc][ic][ad][cd][hd][id][be][ce][he]
CR[hb][hc]

;B[eb]C[B1]MN[1]
;W[gb]C[W2]MN[2]
;B[da]C[B3]MN[3]
;W[ha]C[W4]MN[4]
;B[ca]C[B5]MN[5]
;W[ja]C[W6]MN[6]

;CR[hb][hc]
)
