(;GM[1]FF[4]SZ[9]
GN[]
PC[https://senseis.xmp.net/?OPRules]AP[GoWiki:2009]
DT[2023-01-18]
C[Diagram from https://senseis.xmp.net/?OPRules

]
PL[B]

AB[bg][cg][dg][eg][fg][gg][hg][ah][bh][hh][ih][bi][ci][hi]
AW[bf][cf][df][ef][ff][gf][hf][ag][ig][ch][dh][eh][fh][gh][di][gi]

;B[ai]C[B1]MN[1]

;
)
