(;GM[1]FF[4]SZ[19]
GN[ko, B corner]
PC[https://senseis.xmp.net/?BQM591/Attempts]AP[GoWiki:2009]
DT[2021-06-25]
C[Diagram from https://senseis.xmp.net/?BQM591/Attempts

ko, B corner]
PL[W]

AB[db][eb][ec][fc][cd][dd][be][ce][cf][bg][cg]
AW[cb][bc][cc][dc][bd][ae][ag][bh]

;W[bi]C[W18]MN[18]
;B[af]C[B19]MN[19]
;B[bf]C[B21]MN[21]

;
)
