(;GM[1]FF[4]SZ[19]
GN[Black to move]
PC[https://senseis.xmp.net/?GokyoSeimyoVolume3Problem30]AP[GoWiki:2009]
DT[2023-02-15]
C[Diagram from https://senseis.xmp.net/?GokyoSeimyoVolume3Problem30

Black to move]
PL[B]

AB[ab][bb][db][cc][dd][de][df][dg][ch][ci][aj][cj][bk]
AW[ac][bc][cd][be][ce][cf][cg][bh][bi][bj]


;
)
