(;GM[1]FF[4]SZ[19]
GN[many ways]
PC[https://senseis.xmp.net/?GokyoShumyoSection2Problem21/Solution]AP[GoWiki:2009]
DT[2023-01-05]
C[Diagram from https://senseis.xmp.net/?GokyoShumyoSection2Problem21/Solution

many ways]
PL[B]

AB[gb][gc][bd][cd][dd][ed][fd][bf]
AW[eb][bc][cc][ec][ad]
LB[ba:b][ea:d][ac:a][dc:c]


;LB[ba:b][ea:d][ac:a][dc:c]
)
