(;GM[1]FF[4]SZ[19]
GN[ko in the corner]
PC[https://senseis.xmp.net/?GokyoShumyoSection6Problem63/Solution]AP[GoWiki:2009]
DT[2023-01-25]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection6Problem63/Solution

ko in the corner]
PL[W]

AB[ab][bb][fb][cc][dc][ec][jc][dd][fd][gd][je][ff][gf][ig][gh]
AW[bc][fc][gc][hc][nc][ad][cd][ed][hd][qd][be][ce][de][ee][he]
LB[kb:a]

;W[ha]C[W1]MN[1]
;B[ib]C[B2]MN[2]
;W[da]C[W3]MN[3]
;B[eb]C[B4]MN[4]
;W[cb]C[W5]MN[5]
;B[db]C[B6]MN[6]
;W[ba]C[W7]MN[7]

;LB[kb:a]
)
