(;GM[1]FF[4]SZ[19]
GN[]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem23/Attempts]AP[GoWiki:2009]
DT[2023-01-05]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem23/Attempts

]
PL[B]

AB[fb][dc][ec][gc][cd][be][ce]
AW[cb][db][eb][bc][bd]

;B[ba]C[B1]MN[1]
;W[ea]C[W2]MN[2]
;B[ca]C[B3]MN[3]
;W[ad]C[W4]MN[4]
;B[bb]C[B5]MN[5]
;W[cc]C[W6]MN[6]
;B[ab]C[B7]MN[7]

;
)
