(;GM[1]FF[4]SZ[19]
GN[solution]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem47/Solution]AP[GoWiki:2009]
DT[2023-01-10]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem47/Solution

solution]
PL[B]

AB[bb][gb][bc][hc][ic][cd][dd][gd][jd][fe][he][cg]
AW[cb][fb][hb][cc][ec][fc][gc][hd]

;B[ia]C[B1]MN[1]
;W[ga]C[W2]MN[2]
;B[ea]C[B3]MN[3]
;W[db]C[W4]MN[4]
;B[ib]C[B5]MN[5]

;
)
