(;GM[1]FF[4]SZ[19]
GN[Black to move]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem14/Solution]AP[GoWiki:2009]
DT[2023-02-14]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem14/Solution

Black to move]
PL[B]

AB[gb][ec][gc][ic][bd][ed][fd][ce][de][df][cg][bh][ch]
AW[eb][fb][cc][dc][fc][cd][be][bf][cf][bg]
LB[aa:b][ba:c][ad:a]

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

;LB[aa:b][ba:c][ad:a]
)
